Mathematical simulation of algae blooms by the model BLOOM II: Report on investigations

C O N T E N T S

A D D E N D U M a - 1

A . l G e n e r a l i n f o r m a t i o n a - 1

A . 2 U n i v e r s a l i n p u t s a - 1

A . 3 L a k e - s p e c i f i c i n p u t s a-<+

A . 4 G r a p h i c a l r e s u l t s a - 5

ADDENDUM

A.l GENERAL INFORMATION

For p r a c t i c a l r e a s o n s s e v e r a l t a b l e s a n d g r a p h s o f t h e B L O O M II

r e p o r t h a v e b e e n p u t into a s e p a r a t e v o l u m e c o n s i s t i n g of t w o m a j o r

p a r t s :

1. A s u m m a r y of t h e m a i n e q u a t i o n s and t h e v a l u e s of ( a l m o s t )

all coe f f i c i e n t s .

2. A g r a p h i c a l p r e s e n t a t i o n of t h e r e s u l t s .

L i t e r a t u r e r e f e r e n c e s of t h e a d d e n d u m a r e i n c l u d e d in t h e list of

r e f e r e n c e s of t h e m a i n v o l u m e .

A.2 UNIVERSAL INPUTS

In t h i s s e c t i o n w e s h a l l g i v e a s u m m a r y o f a l l t h e u n i v e r s a l

i n p u t s ( m o d e l p a r a m e t e r s ) o f B L D O M II a n d t h e w a y t h e y a r e

c o m p u t e d . S p e c i e s d e p e n d e n t s y m b o l s a r e w r i t t e n w i t h a s u b s c r i p t j,

w h i c h w a s n o t a l w a y s t h e c a s e in t h e mair< r e p o r t . S y m b o l d e f i

-n i t i o -n s o f t h e m a i -n r e p o r t a r e -n o t r e p e a t e d h e r e .

M a x i m u m g r o s s p r o d u c t i o n

P n m a x ( T , V j ) = 1 . 0 7 2 9 * Ë X P ( 0 , 0 6 3 9 T - 0 . 16 ) *

P g m a x ( T , V j ) - P n m a x ( T , V j ) + R C T ) j

[ 1 / d a y ]

t1/day 1

Resp i rat i on

R C T )

g

= EXP (Aj*T -

[1/day]

Mini mum morta 1 i ty

MminCT) = EXP (0.098T - 3.219)

[1/day]

Grazing

ZG.z CXe - Xmin)

CZK + Xe - Xmin),Xe

t 1 / d a y I

R e m i n e r a 1 i z a t i o n o f n u t r i e n t s N i t r o g e n : P h o s p h o r : Si 1i con : 0 0 0 .006 , .006 . .025 / f day f day ' day 0 0

C

C

E l i m i n a t i o n e f f e c t d e a d c h l o r o p h v l l o n e x t i n c t i o n v = E X P C 0 . 0 2 9 6 * T - 1 , 8 9 7 ) T r a n s m i t t e d r a d i a t i o n . I t i s d i f f i c u l t t o e s t i m a t e t h e f r a c t i o n o f i n c i d e n t s o l a r r a d i -a t i o n w h i c h -a c t u -a l l y p e n e t r -a t e s t h e w -a t e r , b e c -a u s e t h i s d e p e n d s o n : • T h e a n g l e b e t w e e n t h e w a t e r s u r f a c e a n d t h e l i g h t b e a m * h e n c e o n s e a s o n » t i m e o f d a y a n d w a v e p a t t e r n . A s t h e a n g l e c o m e s c l o s e r t o 9 0 ° , t h e f r a c t i o n o f t r a n s m i t t e d r a d i a t i o n i n c r e a s e s . • S c a t t e r i n g b y t h e s k y ( c l o u d i n g ? t h e m o r e s c a t t e r i n g » t h e m o r e l i g h t i s t r a n s m i t t e d ) . A c c o r d i n g t o W e t ? . e l 1 1 9 7 5 1 t h e a v e r a g e f r a c t i o n o f t r a n s m i t t e d r a d i a t i o n v a r i e s f r o m a b o u t 0 . 9 5 i n s u m m e r t o 0 . 9 0 i n w i n t e r . T h i s d i f f e r e n c e i s s o s n a l l , b e c a u s e w i n t e r t e n d s t o b e m o r e c l o u d y t h a n s u m m e r ; i n B L O O M I I t r a n s m i s s i o n v a r i e s b e t w e e n t h e s e I i m i t s . A n i m p o r t a n t r e a s o n n o t t o a s s u m e a h i g h e r r e f l e c t i o n i n w i n t e r i s t h e o b s e r v a t i o n s t h a t e n e r g y t e n d s t o b e l i m i t i n g i n r e l a t i v e l y d a r k ( = c l o u d y ) p e r i o d s o f t h e y e a r . T a b l e A . l S p e c i e s c o e f f i c i e n t s t o c a l c u l a t e P g m a x ( T t V j ) a n d R ( T )J t Species Aster i one1 la Centric diatoms Cryptomonas Vo1vox Scenedesmus Cerat i urn Anabaena Aphan i zomenon M i crocyst i s Osc i 1 lator i a Average volume 500 500 500 500 1000 20000 80000 80000 80000 80000 Respiration Coefficients A B 0.0916 3.0275 0.0916 3.0275 0.0916 3.0275 0.0916 3.0275 0.0916 3.0751 0.0639 2.1721 0.0916 4.3827 0.0916 4.3827 0.0916 4.3827 0.0916 4.3827 N o t i c e t h a t f o r s e v e r a l s p e c i e s s u c h a s V o 1 v o x w e h a v e n o t u s e d t h e a c t u a l v o l u m e » b u t t h e s a m e v a l u e a s f o r soitie r e l a t e d s p e c i e s » t o p r e v e n t t h a t C s m a l l ) d i f f e r e n c e s i n v o l u m e d e t e r m i n e d o m i n a n e e w i t h i n o n e p h y t o p l a i i k t o n g r o u p . T h e s a m e i s t r u e f o r t h e r e s p i r a

-a-2

tion c o e f f i c i e n t s Aj and I and R C T ) , are used for all

j , H e n c e t h e saine v a l u e s f o r P g m a x ( T > V j ) f o u r s p e c i e s o f b l u e - g r e e n a l g a e . T a b l e A . 2 S p e c i e s c o e f f i c i e n t s f o r e x t i n c t i o n » b u o y a n c y c o n t r o l » z o o p l a n k -t o n p r e f e r e n c e a n d d r y w e i g h -t -t o c h l o r o p h y l l c o n v e r s i o n . Spec i es A s t e r i o n e lla C e n t r i c d i a t o m s C r y p t o m o n a s Vo 1 vox Scenedesmus Cerat i um A n a b a e n a Aphani z o m e n o n M i c rocyst i s Osc i1lator i a Spec Ext 7 . 0 0 D - 0 5 7.00D-05 5 . 2 1 D - 0 5

3.86D-05

5.21D-05

6.00D-05

2.66D-04

2.35D-04

9.60D-05

1.90D-04

Rm i x 1 .0 3 .0 1 .0 1 .0 1 .0 0.275 0. 275 0.275 0.275 0.275 Pref 1 .0 1 .0 1 .0 1.0 1 .0 0.0 0.0 0.0 0.0 0.0 C/CHL 25 25 30 30 30

30

30 30

40

40 DRY/C 3,0 3 . 0 2.3 2.3 2.3 2.3 2.5 2.5 2.5 2.5 T h e v a l u e s f o r t h e s p e c i f i c e x t i n c t i o n c o e f f i c i e n t s ( K j ) a r e m a i n l y b a s e d u p o n t h e t h e o r e t i c a l N o r k s b y K i r k [ 1 9 7 5 a ; 1 9 7 5 b ; 1 9 7 6 ) » w h i c h w e f o u n d i n g o o d a g r e e m e n t t o v a l u e s o b t a i n e d f r o m l i n e a r r e g r e s s i o n s o f c h l o r o p h y l l a n d d r y w e i g h t t o b o t h t o t a l e x t i n c t i o n a n d S e c c h i d i s c s i n G r o t e R u g . H o w e v e r » f o r A p h a n i z o m e -n o -n w e a r r i v e d a t a h ï g h e r , a -n d f o r O s c i l l a t o r i a a t a l o w e r s p e c i f i c e x t i n c t i o n t h a n s u g g e s t e d b y K i r k . A s t h e d i f f e r e n c e w a s s i g n i f -i c a n t w e h a v e u s e d t h e G r o t e R u g e s t -i m a t e s . T a b l e A . 3 S t o c h i o m e t r i c c o n s t a n t s ( a , f J) o f s p e c i e s i n B L O O M I I . S p e c i e s A s t e r i o n e l l a C e n t r i c d i a t o m s C r y p t o t n o n a s V o 1 v o x S c e n e d e s m u s Ce rat i um A n a b a e n a Ap han i z o m e n o n M i c r o c y s t i s O s c i l l a t o r i a Ni t r o g e n 0.024 0.040 0.072 0.076 0.058 0.064 0.070 0.068 0 .053 0.063 P h o s p h o r 0.0032 0.0046 0.0046 0.0070 0.0052 0.0046 0.0057 0.0043 0.0057 0.0046 Si 1 i con 0.22 0. 13 0.0007 0.0007 0.0007 0.0007 0.0007 0.0007 0.0007 0.0007

As with r e s p i r a t t o n and v o l u m e , for some s p e c i e s the same s t o -c h i o m e t r i -c -c o ë f f i -c i ë n t v a l u e s have b e e n used when o b s e r v e d n u m b e r s were not c l e a r l y d i s t i n c t . Thtis o t h e r > more o b v i o u s d i f f e r e n c e s d e t e r m i n e w h i c h s p e c i e s b e c o m e s d o m i n a n t .

A . 3 LAKE-SPECIFIC INPUTS Tafale A . 4 L a k e s p e e i f i c i n p u t s » w h i c l i a r e e i t h e r c o n s t a n t f o r e a c h w e e k o r f o r w h i c h n o w e e k l y d a t a a r e i n c l u d e d i n t h i s r e p o r t . T h e c o l u m n f o r C / C H L i n d i c a t e s w h e t h e r t h e n o m i n a l s p e c i e s s p e e i f i c v a l u e s ( T a b l e A . 2 ) a r e u s e d ( y e s ) o r l a k e s p e e i f i c a d j u s t m e n t s ( n o ) . C a s e

Grote

Grote

Grote

Grote Grote Grote Grote Grote Grote Lake Lake Lake Lake Lake Rug Rug

Rug

Rug Rug Rug Rug Rug Rug

Ri

Ri

Ri

Ri

Ri

Ri

Ri

Ri Ve1 uwe V e l u w e Wo l d e r w Wo 1 d e r w I J s s e l ng ng ng ng ng ng ng ng i jd i jd 2 3

1

2 3 2 3

2

Y e a r

1975

1975

1976

1976

1976

1977

1977

1977

1978

1975

1976

1975

1976

1976

Kb

0.75

0.89

1.07

0.82 0. 98 0, 66 1 .01 1 .05 0.81 4.5 4.5

2.5

2.5 1 .75 Depth 4.74-5.63 4. 74-5.63 3.63-5.08 3.63-5.08 3.63-5.08 3.77-5.09 3.77-5.09 3.77-5.09 4.41-5.63 1 .2 1 .2 1 .5 1 .5

4.5

Nom ? Yes Yes

Yes

Yes Yes Yes Yes

Yes

Yes

Yes Yes

No

No Yes A l l w e e k l y l a k e s p e e i f i c i n p u t s f o r tiie c a s e s d i s c u s s e d i n t h i s r e p o r t a r e g i v e n i n t h e T a b l e s A . 7 t h r o u g h A . 2 0 . T a b l e A . 5 U n i t s f o r l a k e s p e e i f i c i n p u t s . c o ë f f i c i ë n t T e m p e r a t u r e S o l a r ( 1 9 7 5 , 1 9 7 6 ) S o l a r ( 1 9 7 7 , 1 9 7 8 ) N , P a n d S i U n i t o C J o u l e s / c m2 / w e e k ( t o t a l r a d i a t i o n ) J o u l e s / c m : / w « e k ( 4 0 0 - 7 0 0 n m ) A v a i l a b l e s i l i c o n w a s e s t i m a t e d i n G r o t e R u g a s o b s e r v e d d i s -s o l v e d -s i l i c o n p l u -s t h e e -s t i m a t e d a i t i o u n t i n l i v e a n d d e a d d i a t o m -s , T h e l a t t e r w a s c o m p u t e d a s t h e p e r c e n t a g e d i a t o m s i n t h e R I D s p e -c i e s -c o u n t s m u l t i p l i e d b y t h e t o t a l b i o m a s s i n u n i t s -c h l o r o p h y l l o r t o t a l d r y w e i g h t a n d t h e s t o c h i o m e t r i c c o e f f i c i e n t s f o r s i l i c o n . I n a l l o t h e r c a s e s n o e s t i t n a t e s o f d i - a t o m b i o m a s s w e r e a v a i l a b l e . A v a i l a b l e s i l i c o n w a s t h e n p u t e q u a l t o t h e m a x i m u m v a k e f o r p e r i -o d s w h e n a d i a t -o m b l -o -o m m -o s t l i k e l y w -o u l d h a v e -o c c u r r e d ( w e e k s 1 t h r o u g h 1 2 ) a n d f o r t h e r e s t o f t h e y e a r » w e h a v e a s s u m e c ' t h e r e w e r e n o d i a t o m s , t h u s d i s s o l v e d s i l i c o n i s a l l t h a " i s a v a i l a b l e . P r o b a -a-4

bly this procedure gives an occasional overestimation of the available amount of silicon.

All data for Grote Rug are from the (weekly) data base of the Del-ta Department, those for the 'PAWN' lakes from the 'WAKWAL' daDel-ta base. These are averages from several stations» sampled either two-weekly (Lakes Veluwe and Wolderwijd) or monthly (Lake IJssel).

A.4 GRAPHICAL RESULTS

Of a l l r e s u l t s p r o d u c e d b y t h e m o d e l w e h a v e o n l y i n c i u d e d t h e

m o s t i m p o r t a n t o n e s in t h e r e p o r t :

• T o t a l c h l o r o p h y l l ,

• S p e c i e s d o m i n a n c e .

• N u t r i ë n t c o n c e n t r a t i o n s a n d r e l a t e d t o t h i s l i m i t i n g f a c

-t o r s .

F o r c h l o r o p h y l l a n d s p e c i e s d o m i n a n c e w e c a n m a k e a d i r e c t

coiti-p a r i s o n b e t w e e n t h e r e s u l t s o f t h e m o d e l a n d o b s e r v a t i o n s . F o r

n u t r i ë n t c o n c e n t r a t i o n s o r l i m i t i n g f a c t o r s t h i s i s , h o w e v e r ,

i m p o s s i b l e . T h e c o m p u t e d n u t r i ë n t f r a c t i o n s d o n o t c o r r e s p o n d t o

a n y o b s e r v e d f r a c t i o n ( a t l e a s t n o t a l w a y s ) . F u r t h e r m o r e t h e r e a r e

n o o b s e r v a t i o n s o n l i m i t i n g f a c t o r s . A 1 o w o b s e r v e d v a 1 u e f o r t h e

d i s s o l v e d f r a c t i o n o f a n u t r i ë n t i s a n e o e s s a r y , b u t i n s u f f i c i e n t

c o n d i t i o n t o p r o v e t h a t it is l i m i t i n g . F o r a n e n e r g y l i m i t a t ï o n

t h e r e is o n l y i n d i r e c t o b s e r v a t i o n a 1 e v i d e n c e : if t h e d i s s o l v e d

f r a c t i o n s o f a l l n u t r i e n t s a r e c o n s i t t e n t l y h i g h i e n e r g y m u s t b e

l i m i t i n g .

U s u a l l y t h r e e f i g u r e s a r e p r e s e n t e d f o r e a c h c a s e : t w o f o r t h e

n u t r i e n t s N a n d P a n d o n e f o r p h y t o p 1 a n k t o n J a l l v a r i a b l e s a r e

p l o t t e d w i t h r e s p e c t t o t i m e .

N u t r i e n t s : in B L O O M I I t w o f r a c t i o n s a r e d i s t i n g u i s h e d : ( 1 )

' p l a n k t o n i c ' ( d r a w n 1 i n e s ) > w h i c h a r e a l l n u t r i e n t s c u r r e n t l y

a s s o c i a t e d t o l i v e a n d d e a d p h y t o p l a n k t o n a n d z o ö p l a n k t o n a n d ( 2 )

' r e s t ' ( d a s h e d l i n e s ) , w h i c h a r e a l l o t h e r f r a c t i o n s . ' R e s t ' is in

f a c t t h e n u t r i ë n t ' s l a c k ' e

t

o f t h e o p t i m u m L P s o l u t i o n o f B L O O M II

t S e c t i o n 2 . 2 . 2 ; D a n t z i g , 1 9 6 3 ] . T h e s e f r a c t i o n s a r e n o t ( a l w a y s )

i d e n t i c a l t o s o m e m e a s u r e d n u t n b e r , a l t h a u g h t h e y c a n b e : if t h e

p a r t i c u l a t e i n o r g a n i c f r a c t i o n is s in a l l , a s m a y b e t h e c a s e d u r i n g

a bloorn, t h e n ' p l a n k t o n i c ' c o r r e s p o n d s t o t h e o b s e r v e d t o t a l p a r t i

-c u l a t e f r a -c t i o n a n d ' r e s t ' t o t h e o b s e r v e d d i s s o l v e d f r a -c t i o n o f

t h i s n u t r i ë n t . If t h e l a s t t w o n u m b e r s a r e b o t h z e r o , w e m a y i n d e e d

c o n c l u d e t h a t t h i s n u t r i ë n t i s l i m i t i n g t h e p h y t o p l a n k t o n b i o m a s s

in t h e m o d e l a n d in t h e o b s e r v a t i o n s .

P h y t o p l a n k t o n : B L O O M I I ' s m a i n o u t p u t s f o r e a c h c a s e a r e s h o w n in

o n e f i g u r e > g i v i n g

1. P r e d i c t e d ( h i s t o g r a m s ) a n d o b s e r v e d ( d r a w n l i n e s ) t o t a l

b i o m a s s in m g c h l o r o p h y l l p e r m

3

.

2 . P r e d i c t e d a n d o b s e r v e d r e l a t i v e s p e c i e s d o m i n a n c e f o r

m a j o r p e r i o d s .

3. L i m i t i n g f a c t o r s a b b r e v i a t e d a s :

P h o = p h o s p h o r u s , S i l = s i l i c o n , N i t = n i t r o g e n a n d E =

e n e r g y . A d r a w n l i n e is p l o t t e d f o r e a c h f a c t o r t h a t is

l i m i t i n g t o t h e b l o o m in a t i m e p e r i o d .

a-5

B e c a u s e t h e d r y w e i g h t t o c h l o r o p h y l l c o n v e r s i o n o f B L O O H I I d e p e n d s o n t h e d o m i n a n t s p e c i e s , t h e r a a r e s o m e t i m e s v a r i a t i o n s i n p r e d i c t e d c h l o r o p h y l l w h i c h c o r r e s p o n d t o a c h a n g e i n c o m p o s i t i o n r a t h e r t h a n a c h a n g e i n c o m p u t e d d r y w e i g h t . F o r i n s t a n c e » t h e t h r e e e x t r e m e l y h i g h v a l u e s f o r t h e L a k e W o l d e r w i j d a f t e r w e e k 4 0 in 1 9 7 5 a r e c a u s e d b y a n e r r o n e o u s b u t t e m p o r a r y s h i f t f r o m b l u e - g r e e n s t o d i n o f l a g e l l a t e s » t h e v a r i a t i o n i n d r y w e i g h t o v e r t h i s p e r i o d i s m u c h s m a l l e r . A s a n a l t e r n a t i v e t o t h e c u r r e n t i n d i c a t i o n o f s p e c i e s d o m i n a n c e » w e h a v e c o n s i d e r e d d r a w i n g t h e c o n c e n t r a t i o n s o f a l l t e n s p e c i e s i n o n e f i g u r e , H o w e v e r » t h i s w o u l d n o t l o o k v e r y i n f o r m a t i v e b e c a u s e t h e c o m p u t e d b l o o m s m a y b e f a i r l y s t a b l e i n c o m p o s i t i o n » e v e n i f n o n e o f t h e t i m e - d e p e n d e n t o p t i o n s o f t h e m o d e l a r e o p e r a t i o n a l » b u t l a r g e » u n r e a l i s t i c v a r i a t i o n s c a n o c c u r b e t w e e n w e e k s [ S e c t i o n 5 . 5 1 . T h e r e f o r e i t s e e m s u n j u s t i f i e d t o p l o t e a e h s h i f t i n c o m p o s i t i o n . A s a n a l t e r n a t i v e w e c a l c u l a t e t h e a v e r a g e s p e c i e s c o m p o s i t i o n o v e r a p e r i o d o f s e v e r a l w e e k s , b a s e d u p o n v a r i a t i o n s i n t o t a l b i o m a s s ( c o m p u t e d a n d o b s e r v e d ) a n d ( m a j o r ) c h a n g e s i n c o m p o s i t i o n d u r i n g a y e a r . U s u a l l y t h e r e i s o n e p e r ï o d p r i o r t o thra s p r i n g b l o o m » o n e f o r t h e a c t u a l s p r i n g b l o o m , o n e f o r t h e f i r s t h a l f o f s u m m e r e t c . T y p -i c a l l y w e d -i s t -i n g u -i s h b e t w e e n f -i v e a n d t e n a n n u a l p e r -i o d s . S p e c i e s a r e g i v e n i n d e s c e n d i n g o r d e r o f i m p o r t a n c e » s e p a r a t e d b y a c o m m a if t h e d i f f e r e n c e in t h e i r d r y w e i g h t c o n c e n t r a t i o n s i s s m a l l ( l e s s t h a n 1 0 p e r c e n t ) a n d b y a s e m i c o l o n , i f t h e d i f f e r e n c e is l a r g e r . W e h a v e i n c l u d e d a l l s p e c i e s w h i c h w e r e p r e s e n t in r e a -s o n a b l e q u a n t i t i e -s : a b o u t 1 0 o r m o r e p e r c e n t o f t h e t o t a l b i o m a -s -s i n a p e r i o d . Q b v i o u s l y t h e r e i s s o m e a r b i t r a r i n e s s i n t h e s e l e c t i o n o f p e r i o d s » c o m m a s a n d s e m i c o l o n s , b u t t h e o v e r a l l p i c -t u r e i s a f a i r r e p r o d u c -t i o n o f o b s e r v a -t i o n s a n d m o d e l r e s u l -t s . T a b l e A . 6 N a m e s o f g r o u p s a n d s p e c i e s o f B L O O . M I I a n d t h e a b b r e v i a t i o n s u s e d in t h e f i g u r e s . G r o u p n a m e d i a t o m s d i a t o m s f l a g e l l a t e s f l a g e 1 1 a t e s g r e e n s d i n o f 1 a g e 1 l a t e s b 1 u e - g r e e n s b l u e - g r e e n s b l u e - g r e e n s b l u e - g r e e n s S p e c i e s n a m e A s t e r i o n e l l a C e n t r i c d i a t o m s Cr y p t o m o n a s Vo 1 vo x S c e n e d e s m u s Cer at i urn A n a b a e n a A p h a n i z o m e n o n M i c r o c y s t i s O s c i l l a t o r i a A b b r e v i a t i o n

Dl

D2

Fl

F2 Gl II

BI

B2

B3

I n c a s e a s p e c i e s w a s o b s e r v e d w h i c h i s n o t i n c l u d e d i n t h e m o d e l » it i s i n d i c a t e d b y t h e a b b r e v i a t i o n o f t t s g r o u p a n d t h e l e t t e r ' M ' f o r m i s c e l l a n e o u s ! t h u s f o r e x a m p l e t h e d i a t o m M e l o s i r a a n d t h e f l a g e l l a t e R h o d o m o n a s a r e s h o w n a s D M » r e s p e c t i v e l y F M . a-6

Table A.7

Case: Grote Rug inputa.

Ring 2. Year: 1975. Weekly lake specifïc

Week 1 2 3 4 5 6 7 8 9 10 11 12 13 11 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 Temp 4.5 4.5 4.5 4.5 3.8 3.1 3.1 3.5 4.0 4.9 5.0 4.9 4.7 4.7 5.8 10.0 9.8 10.7 12.3 14.2 13.3 13.5 15.4 16.7 18.1 17.0 18.3 20.0 20,6 21.3 21.9 21 .2 21.0 19.8 19.8 18.7 17.0 17.4 15.7 14.6 11.5 10.6 9.7 9.2 7.8 6.7 5.6 5.0 5.2 4.7 4.1 3.6 Solar 1244 1722 1430 1745 2812 3930 3357 5824 5113 3378 4130 5967 5680 6507 6679 8382 8255 12057 9576 12750 13984 12588 17441 14423 14073 15899 12619 13823 11568 12938 15257 12714 8705 9871 10478 8173 6717 8465 5755 4876 5194 4350 2816 3048 2270 1747 2188 1362 1545 1646 1210 672 N 2.97 2.97 3.32 3.35 3.38 3.34 3.35 3.37 3.30 3.27 3.29 3.45 3.33 3.23 3.09 3.01 2.97 2.87 2.66 2.56 2.47 2.45 2.37 2.44 2.30 2.45 2.46 2.46 2.34 2.21 2.09 2.08 1.88 1.79 1.62 1.60 1.59 1.50 1.60 1.70 1.53 1.70 1.86 1.73 1.74 1.89 1.85 1.78 1.69 1.78 2.02 2.09 P 0.032 0.032 0.040 0.033 0.025 0.030 0.064 0.022 0.017 0.037 0.033 0.051 0.033 0.049 0.073 0.055 0.041 0.059 0.026 0.033 0.042 0.029 0.019 0.039 0.051 0.054 0.033 0.030 0.028 0.028 0.025 0.031 0.062 0.028 0.022 0.053 0.085 0.055 0.043 0.031 0.064 0.047 0.050 0.039 0.049 0.033 0.047 0.063 0.062 0.060 0.063 0.063 Si 1.54 1,54 1.48 1.52 1.56 1.40 1.31 1,46 1.09 1.19 0.97 0.79 0.64 0.48 0.32 0.17 0.12 0.06 0.18 0.30 0.36 0,42 0.36 0.35 0.32 0.46 0,53 0.60 0.57 0.54 0.51 0.24 0.34 0.58 0.63 0.75 0.87 0.75 0.34 0.68 0.45 0.28 0.47 0.29 0.20 0.28 0.34 0.50 0.50 0.51 0.55 0.70 a-8

Table A.8

Case: Grot© Rug Ring 3. Year: 1975. inputs.

Ueekly lake specific

Week 1 2 3 4 5 6 7 8 9 10 11 12 13 1* 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 Temp 4.5 4.5 4.8 4.4 3.8 3.1 3.0 3.5 4.0 5.0 5.0 4.7 4.5 4.8 5.8 9.8 10.0 10.6 12.3 14.2 13.3 13.5 14.9 16.6 18.2 17.0 18.2 20.3 20.6 21,0 21.3 21.5 20.9 19.6 20.0 18.8 16.7 17.1 15.7 14.6 11.6 10.6 9.7 9.1 7.8 6.7 5.6 4.9 5.2 4.6 4.1 3.5 Solar 1244 1722 1430 1745 2812 3930 3357 5824 5113 3378 4130 5967 5680 6507 6679 8382 8255 12057 9576 12750 13984 12588 17441 14423 14073 15899 12619 13823 11568 12938 15257 12714 8705 9871 10478 8173 6717 8465 5755 4876 5194 4350 2816 3048 2270 1747 2188 1362 1545 1646 1210 672 N 3.35 3.35 3.70 3.73 3.76 3.68 3.73 3.75 3.66 3.54 3.57 3.71 3.68 3.50 3.43 3.00 3.43 3.32 3.15 2.86 2.77 2.82 2.78 2.69 2.58 2.55 2.59 2.71 2.58 2.45 2.32 2.33 2.17 2.04 1,93 1.92 1,91 1.90 2.24 2.11 1.93 2.09 1.88

1.81

1.93 1.93 1.90 1.85 2.24 1.92 2.06 1.94

P

0.102 0.102 0.125 0.114 0.103 0.107 0.105 0.083 0.075 0.095 0.087 0.100 0,065 0.089 0.121 0.061 0.080 0.115 0.075 0.080 0.065 0.067 0.049 0.060 0.065 0.077 0.049 0.060 0.053 0.046 0.039 0.043 0.076 0.051 0.046 0.062 0.079 0.076 0.085 0.040 0.083 0.073 0.053 0.067 0.069 0.047 0.070 0.073 0.073 0.073 0.083 0.083 Si 2.13 2.13 2.10 2.10 2.07 2.02 1.98 1.93 1.75 2.26 1.63 1.50 0.14 0.06 0.08 0.15 0.22 0.29 0.37 0.59 0.62 0.80 0.73 0.72 0.69 0.74 0.74 0.64 0.65 0.66 0.67 0.67 0.98 1.45 1.36 1.30 1.23 1.12 1.12 1.10 0.93 0.76 0.63 0.30 0.21 0.29 0.34 0.40 0,45 0.49 0.58 0.58 a-9

T a b U A.9

Case: GrotQ Rug Ring 1. Year: 1976, ïnputa.

Weekly lake specific

Week 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 Temp 4.7 5.8 5.7 5.6 0.4 0.4 0.4 3.4 4.5 2.8 4.5 4.2 6,0 7.7 8.8 11.6 10.2 10.8 13.0 15.2 16.2 15.0 17.9 20.0 18.6 23.5 23.4 22.7 22.4 20.1 17.8 18.9 20.0 19.3 19.7 17.3 14.0 16.7 16.1 16.0 15.0 12.7 12.4 10.7 9.5 7.8 8.0 7.5 5.0 4.7 2.0 2.0 Solar 1314 1056 1820 2720 2341 2613 2405 4011 6120 6613 3872 8986 6669 9290 11493 11811 13985 11815 14506 15824 14201 9438 16722 17145 14556 18161 18590 15670 10494 12495 11447 15042 12374 13845 9043 9447 5714 6945 4957 4097 3572 4168 2734 2794 2479 1670 1243 1185 2190 1469 921 1979

N

3.01 2.91 2.84 2.76 2.85 2.94 3.03 3.29 3.15 3.13 3.09 2.70 2.54 2.51 2.55 2.29 2,44 2.54 2.48 2,41 2.44 2.35 2.29 1.97 2.12 2,45 2.59 2.87 2.37 ' 2.32 2.61 2,59 2.37 2.69 2.63 2.53 2.39 2.90 2.68 2.78 3.07 3.06 3.09 3.48 3.46 3.48 3.84 3.95 3.96 4.03 4.45 4.45

P

0.103 0.103 0.097 0.113 0.116 0.119 0.122 0.129 0.125 0.091 0.065 0.047 0.037 0.036 0.032 0.050 0.042 0.056 0.100 0.036 0,053 0.048 0.071 0.054 0.043 0.046 0.053 0.085 0.108 0.075 0.093 0.060 0.081 0.086 0.057 0.054 0.062 0,080 0.087 0.056 0.052 0.049 0,033 0.049 0.065 0.041 0.049 0.057 0.075 0.068 0. 068 0.068 Si 1.66 1.66 1.68 1.69 1.79 1.88 1.98 2.07 2.14 2.80 2.80 2.58 0,58 0.22 0.08 0.13 0.19 0.27 0.18 0,24 0.23 0.34 0.09 0.18 0.26 0.23 0.26 0.66 1.01 1.41 1.67 1.25 1.52 0.72 0.78 0.68 0.85 0.94 1.10 1.12 1.23 1.50 1.52 1.65 1.66 1.69 1.74 1.91 1.91 1,99 2.06 2.06 a-10

Table A.10 Case: Grote

i nputs.

Rug Ring 2. Year: 1976. Weekly lako specific

Week 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 46 49 50 51 52 Temp 4.7 5.8 5.6 5.4 0.4 0.4 0.4 3.4 4.5 2.8 4.4 4.2 5.9 7.6 8.8 11.6 10.2 10,6 14,7 15.5 15.3 15.0 18.0 20.3 18.6 23.4 23.4 22.5 22.3 20.0 17.7 18.8 19.9 19.3 19.3 17.2 13.7 15.0 16.0 15.8 14.4 12.5 12.2 10.7 9.4 7.8 8.0 7.5 6.1 4.7 2.0 2.0 Solar 1314 1056 1820 2720 2341 2613 2405 4011 6120 6613 3872 8986 6669 9290 11493 11811 13985 11815 14506 15824 14201 9438 16722 17145 14556 18161 18590 15670 10494 12495 11447 15042 12374 13845 9043 9447 5714 6945 4957 4097 3572 4168 2734 2794 2479 1670 1243 1185 2190 1469 921 1979

N

2.34 2.21 2.02 1.86 2.16 2.46 2.76 2.99 2.84 2.77 2.67 2.28 2.20 2.18 2.18 2.06 2.27 2,24 2.18 2.13 1.97 1.90 2.09 1.84 1.91 1,92 2,15 2.59 1.47 2.03 2.17 1.96 1.81 2.49 2.48 2.22 2.46 2.63 2.20 1.99 2.28 2.41 2.52 2.84 2.83 2.97 3.26 3.25 3.24 3.61 3.79 3.79

P

0,077 0.077 0.076 0.093 0.098 0.103 0.108 0.114 0.107 0.095 0.064 0.048 0.045 0.049 0.046 0.078 0.064 0.046 0.075 0.034 0.055 0.039 0.059 0.033 0.046 0.037 0.051 0.097 0.130 0.083 0.099 0.075 0.083 0.129 0.139 0.115 0.089 0.068 0.124 0.061 0.073 0.058 0.040 0.047 0.049 0.053 0.059 0.064 0.071 0.056 0.052 0.052 Si 0.85 1.03 0.32 0.10 0.39 0.68 0.97 1.18 1.19 2.49 1.36 0.67 0.09 0.19 0.13 0.26 0.41 0.47 0.47 0.49 0.46 0.34 0.40 0.40 0.41 0.31 0.25 0.55 0.77 0.97 1.17 0.77 0.62 0.63 0.64 0.73 0.78 0.91 1.03 0.97 1.08 1.18 1.20 1.30 1.34 1.41 1.45 1.62 1.64 1.81 1.73 1.72 B-ll

Tatale A.ll

Case: Grote i nputa.

Rug Ring 3. Year: 1976. Weekly lake specific

Week 1 2 3 4 5 6

7

8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 Temp 4.6 5.7 5.7 5.6 0.4 0.4 0.4 3.4 4.5 2.8 4.4 4.1 5.7 7.7 9.0 11.6 10.2 10.6 14.1 14.5 15.9 15.0 17.7 20.3 18.7 23.5 23.5 22.4 22.0 20.0 17.6 18.3 19.6 19.2 19.3 17.2 13.6 14.7 16.0 15.8 14.3 12.5 12.2 10.7 9.2 7.8 8.0 7.5 5.0 4.7 2.0 2.0 Solar 1314 1056 1820 2720 2341 2613 2405 4011 6120 6613 3872 8986 6669 9290 11493 11811 13985 11815 14506 15824 14201 9438 16722 17145 14556 18161 18590 15670 10494 12495 11447 15042 12374 13845 9043 9447 5714 6945 4957 4097 3572 4168 2734 2794 2479 1670 1243 1185 2190 1469 921 1979 N 2.05 2.04 1.94 1.90 2.00 2.11 2.21 2.41 2.46 2.30 2.24 1.93 1.79 1.87 2.04 1.96 2.10 2.11 2.32 2.24 1,95 1.97 2.08 1.68 1.65 1.68 1.65 2.38 1.94 2.33 2.55 2.39 1.88 2.90 3.20 2.55 2.40 2.45 2.06 2.09 3.12 2.43 2.51 2.56 2.53 2.67 3.01 2.88 3.09 3.45 3.71 3.71 P 0.083 0.083 0.097 0.094 0.103 0.112 0.121 0.104 0.093 0,097 0.075 0.050 0.041 0.047 0.061 0.085 0.063 0.056 0.105 0.069 0.067 0.047 0.081 0.058 0.082 0.068 0.064 0.088 0.267 0.334 0.267 0.259 0.293 0.354 0.261 0.326 0.350 0.285 0.321 0.321 0.420 0.349 0.337 0.302 0.303 0.317 0.282 0.269 0.303 0.265 0.234 0.213 Si 0.77 0.77 0.83 0.83 0.96 1.10 1.23 1,34 1.41 1.69 2.77 1.99 0.12 0.16 0.13 0.11 0.19 0.24 0.32 0.25 0.32 0.49 0.46 0.57 0.67 0.56 0.39 0.22 0.78 1.29 1.65 1.26 1.55 2.42 2.50 2.79 2.86 2.91 3.14 2.82 2.86 3.28 3.36 3,47 3.38 3.46 3.35 3.36 3.59 3.79 3.53 3.53 a-12

Teble A.12

Case: Grote i nputa.

Rug Ring 2. Year: 1977. Weekly laks specific

Week 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 Temp 2.0 2.0 1.7 2.3 3.5 4.0 5.0 5.5 5.5 6.5 8.0 8.5 8.0 7.0 7.0 8.0 9.4 11.0 12.0 12.5 13.8 15.0 15.4 18.0 16.6 17.9 19.9 21.0 18.9 18.3 18.0 19.5 19.4 18.4 18.0 18.5 16.8 15.4 14.6 13.0 13.6 12.5 13.1 12.0 10.8 9.3 6.4 4.5 2.4 3.2 4.3 5.8 Solar 337 367 501 495 1081 839 965 1268 1928 2227 2423 1705 2832 2705 3456 3709 3637 3025 3035 4850 5882 5017 3271 4174 2674 3501 5409 4837 3557 2550 4071 2702 2916 2746 3395 2870 2646 2573 1913 1828 1834 1778 961 983 906 802 528 605 595 272 393 368 N 3.80 3.72 3.98 4.02 4.01 4.07 4.18 4.18 3.87 3.98 3.97 4,04 3.87 3.77 3.86 3.80 3.71 3.25 3.23 2.95 3.00 2.85 2.90 3.17 2.72 2.87 2.66 2.97 3.09 2.91 3.00 3.00 3.07 2.81 3.08 2.97 2.85 2.77 2.66 2.66 2.83 3. 12 3.41 3.31 3.53 3.70 3,74 3.85 3.89 4.00 4.10 4.14 P 0.047 0.046 0.048 0.041 0.038 0.038 0.031 0.034 0.028 0.029 0.025 0.034 0.035 0.052 0.046 0.053 0.052 0.070 0.072 0.067 0.095 0.097 0.088 0.103 0.060 0.046 0.042 0.039 0.036 0.029 0.040 0.029 0.031 0.035 0.033 0.035 0.040 0.032 0.030 0.037 0.039 0.044 0.056 0.048 0.064 0.084 0.081 0.074 0.074 0.076 0.063 0.074 Si 1.71 1.76 1.81 1.85 1.75 1.70 1.43 1.41 1.36 1.29 1.23 1.13 1.35 0.97 0.72 0.47 0.23 0.12 0.10 0.20 0.26 0.32 0.27 0.31 0.34 0.44 0.44 0.48 0.54 0.56 0.58 0.60 0.55 0,53 0.53 0.48 0.41 0.26 0.14 0.13 0.24 0.35 0.49 0.65 0.75 0.90 1.06 1.35 1.46 1.63 1.66 1.74 a-13

Table A.13 Case: Grote

i nputa.

Rug Ring 3. Year: 1977. Weekly lake specific

Week 1 2 3 4 5 6 7 3 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 Temp 1.0 2.0 1.7 2.3 3.5 4.0 5.0 5.5 5.5 6.5 8.0 8.5 8.0 7.0 7.0 8.0 9.4 11.0 12.0 12.5 13.8 15.0 15.4 17.6 16.8 17.0 19.4 20.8 18.9 18.3 18.0 19.5 19.4 18.4 18.0 18.5 16.8 15.4 14.6 13.0 13.6 12.5 13.1 12.0 10.7 9.3 6.4 4.5 2.4 3.2 4.3 5.8 Solar 337 367 501 495 1081 839 965 1268 1928 2227 2423 1705 2832 2705 3456 3709 3637 3025 3035 4850 5882 5017 3271 4174 2674 3501 5409 4837 3557 2550 4071 2702 2916 2/46 3395 2870 2646 2573 1913 1828 1834 1778 961 983 9C6 802 528 605 595 272 393 368

N

3.70 3.80 3.95 4.12 4.17 4.36 4.52 4.43 4.37 4.16 3.97 3.94 3.75 3.66 3.93 3.91 3.69 3.48 3.26 3.12 3.17 2.77 2.86 2.76 2.80 2.88 2.85 2.91 2.97 2.99 3.11 3.02 3.05 2.86 3.02 2.79 2.66 2.57 2.53 2.54 2.65 2.92 3.26 3.32 3.64 3.93 3.97 4.16 4.20 4.38 4.54 4.50

P

0.241 0.240 0.252 0.258 0.240 0.225 0.209 0.187 0.161 0.152 0.128 0.124 0.111 0.125 0. 116 0.117 0.113 0.110 0.113 0.098 0.084 0.050 0.061 0. 065 0.050 0.060 0.082 0.069 0.070 0.078 0.109 0. 107 0.105 0. 100 0.091 0. 070 0 . 055 0.051 0 .057 0.057 0 .064 0.124 0.145 0.164 0. 167 0.174 0.183 0.190 0.211 0.201 0.205 0.208 Si 3.56 3.61 3.54 3.52 3.62 3.51 3.42 3.31 3.19 3.11 2.87 2.71 1.81 1.05 0.81 0.76 0.72 0.68 0.70 0.73 0.65 0.10 0.22 0.30 0.38 0.45 0.54 0.48 0.50 0.55 0.57 0.53 0.59 0.69 0.71 0.75 0,89 0.93 0,99 1.01 1.15 1.23 1.26 1.41 1.51 1.64 1.80 2.07 2.15 2.24 2.34 2.47 a-14

Teble A.14

Case: Grote Rug, Year: 1977. Meekly lake specific inputs.

Week 1 2 3

4

5 6

7

8 9 10 11 12 13

14

15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 Temp 1 2 1 2 3

4

5 6 5 6 8 8 8 7 7 8 9 11 12 13 13 15 15 17 16 17 20 21 18 18 18 19 19 18 18 18 16 15 14 13 13 12 13 11 10 9 6 4 2 3 4 5 .0 .0 .8 .4 • 5 .0 .5 .0 .5 .5 .0 .5 .0 .0 .0 .0 .5 .2 .0 .0 .7 .9 .4 .6 .8 .3 .0 .6 .9 .3 .0 .7 .7 .4 .0 .6 .7 .4 .6 .0 .7 .5 .1 .8 .7 .3 .3 .5 .4 .4 .4 .8 Solar 337 367 501 495 1081 839 965 1268 1928 2227 2423 1705 2832 2705 3456 3709 3637 3025 3035 4850 5882 5017 3271 4174 2674 3501 5409 4837 3557 2550 4071 2702 2916 2746 3395 2870 2646 2573 1913 1828 1834 1778 961 983 906 802 528 605 595 272 393 368 3 3 3 4 4 4 3 3 3 3 3 3 3 3 3 3 3 3 2 2 2 2 2 2 3 2 2 2 2 2 2 1 1 1 1 1 1 1 2 1 2 2 2 2 2 3 3 3 3 3 3 3 N .47

.34

.68 .45 ,02 .06 .88 .84 .79 .74 .79 .77 ,59 .54 .67 .49 .45 .51 .80 .83 .71 .54 .71 .65 .26 .59 .56 .24 .36 .29 .10 .98 .93 .71 .89 .85 .73 .84 .04 .73 .10 .40 .70 .49 .86 .09 .17 .50 .44 .44 .74 .74 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 p .058 .064 .068 .081 .068 .055 .052 .053 .045 .056 .038 .057 .041 .042 .061 .041 .057 .068 .074 .060 ,042 .035 .061 .052 .044 .044 .050 .037 .050 .049 ,051 .044 .034 .030 .035 .037 ,041 .033 .040 .028 .042 .041 .041 .038 .042 ,058 .044 .058 ,049 .060 .047 .047 1 1 1 1 1 1 1

2

1 1 1 1 1 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 1 1 1 1 1 1 1 2 2 Si .22 .28 .38 .56 .55 .68 .74 .39 .72 .90 .05 .04 .18 .06 ,72 .30 .44 .24 .26 .43 .21 .22 .42 .50 .71 .63 .72 .21 .66 .40 .37 .33 .27 .43 .55 .67 .82 .79 .81 .86 .95 .99 .08 .26 .17 .35 .43 .78 .79 .94 .01 .04 a-15

Table A.15

Case: Grote inputs.

Rug Ring 2. Year: 1978. Weekly lakf» apecific

Week 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 Temp 5 3 3 2 3 2 0 0 2 4 6 6 6 8 8 7 10 12 13 13 14 15 20 17 17 16 16 15 16 18 22 18 18 19 17 16 17 16 15 13 13 13 12 11 11 8 8 7 4 3 3 2 .0 .5 .3 .9 .3 .7 .6 .6 .9 .7 .3 .0 .7 .5 .3 .5 .1 .4 .5 .3 .6 .8 .6 .6 .9 .4 .0 .4 .5 .5 .8 .7 .1 .6 .8 .7 .4 .2 .7 .3 .6 .7 .2 .8 .1 .8 .6 .8 .2 ,0 ,4 .5 Solar 371 492 527 513 571 823 1225 1281 1577 1507 1545 2303 2230 3290 2923 3931 3798 2556 3999 4121 3134 5523 3563 4136 4123 2377 2567 3653 4145 5501 3533 3981 5440 4273 3282 3371 2842 2465 1397 1781 1686 1070 895 659 628 829 567 687 502 407 321 294 4. 3, 4. 4. 4, 4. 4, 4. 4. 4. 4. 4. 3. 4. 4. 3. 3. 3. 3. 3. 3. 3. 3. 3, 3. 3. 2. 2, 2. 2. 2. 2. 2. 2. 2. 2. 2. 2. 1. 1. 1. 1. 2. 2. 2. 2. 2. 2. 2. 2. 3. 3.

N

06 94 16 01 00 08 15 28 08 12 29 05 98 07 02 68 66 50 48 40 39 24 20 19 23 08 96 92 80 79 67 68 57 32 33 32 24 10 99 88 99 99 14 18 36 54 47 54 68 90 24 53 0. 0. 0. 0. 0. 0. 0. 0. 0. 0. 0. 0. 0. 0. 0. 0. 0. 0. 0. 0. 0. 0. 0. 0. 0. 0. 0. 0. 0. 0. 0. 0. 0. 0. 0. 0. 0. 0. 0. 0. 0. 0. 0. 0. 0. 0. 0. 0. 0. 0. 0. 0, p 066 074 072 065 058 064 048 058 068 062 064 064 060 052 052 046 048 046 044 020 008 026 026 042 034 032 054 056 038 038 034 050 044 060 054 046 060 060 052 040 084 056 066 070 086 086 068 070 074 078 071 061 1 1 1 2 2 2 2 2 2 2 1 1 1 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 1 1 Si .80 .90 .98 .06 .10 .13 .09 .09 .09 .09 .90 .75 .50 .00 .50 .30 .30 .30 .30 .30 .30 .31 .43 .44 .44 .44 .44 .44 .45 .45 .45 .45 .45 ,45 .45 .45 .45 .45 .45 .45 .45 .45 .45 .54 .64 .77 .83 .84 ,86 .09 ,31 .48 a-16

Table A.16

Case: UakeVeluwe. Year: 1975. Weekly lake speeific inputs.

Week 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 Temp 5 5 4 4 3 2 3 4 5 6 4 3 4 5 7 8 10 12 12 13 13 14 12 16 21 18 18 18 18 19 21 20 20 20 19 19 18 16 14 12 9 7 7 7 6 4 4 3 4 1 2 4 .0 .0 .6 .1 .3 .5 .2 .0 .1 .3 .8

.3

.5 .6 .1 .5 .3 .1 .6 .1 .6 .1 .0 .9 .8 .1 .2 .3 .3 .8 .3 .9 .6 ,2 .8 .1 .3 .2 .1 .0 .9 .8 .6 .3 ,1 .8 .1 5 1 .5 5 0 Solar 1244 1722 1430 1745 2812 3930 3357 5824 5113 3378 4130 5967 5680 6507 6679 8382 8255 12057 9576 12750 13984 12588 17441 ' 14423 14073 15899 12619 13823 11568 12938 15257 12714 8705 9871 10478 8173 6717 8465 5755 4876 5194 4350 2816 3048 2270 1747 2188 1362 1545 1646 1210 672 4 4 4 4 4 3 4 4 3 3 3 3 3 3 3 3 4 5 5 5 5 5 5 5 5 5 5 5 6 6 6 6 6 5 5 5 4 5 5 5 5 6 6 6 6 5 4 3 5 4 4 5

N

.07 .07 .25 .43 .11 .80 .06 .33 .94 .54 .62 .70 .48 .27 .43 .58 .48 .38 .45 .52 .58 .65 .82 .85 .88 .65 .82 .98 .15 .31 .48 .27 .06 .86 .65 .30 .95 .18 .40 .63 .85 .08 .23 .38 .15 .92 .54 .16 ,93 .53 80 .22 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 p .280 .280 .315 .350 .320 .290 .270 .250 .260 .270 .320 .370 .380 .390 .355 .320 .375 .430 .460 .490 .520 .550 .620 .610 .600 .620 .650 .680 .710 .740 .770 .745 .720 .695 .670 .675 .680 .652 .624 .596 .568 .540 .520 .500 .495 .490 480 470 .440 410 430 380 4 4 4 4 4 4 4 4 4 4 4 4 2 0 0 0 0 0 0 0 0 0 0 1 1 3 3 3 3 3 3 3 3 4 4 4 4 4 4 4 4 4 4 4 4 5 5 4 4 4 4. 4 Si .55 .55 .58 .62 .50 .38 .31 .25 .25 .25 .25 .25 .00 .25 .18 .12 .12 .12 .29 .47 .65 .82 .75 .20 .65 .12 .17 .21 .26 .30 .35 .63 .92 .20 .48 .25 .02 16 30 44 58 72 53 35 95 55 01 48 25 45 45 33 a-17

Table A.17

Case: leke Veluwe. Year: 1976. Weekly lake gpecific inputs.

Week 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 Temp 5.6 7.1 6.7 6.2 5.7 5.3 4.8 4.3 4.0 3.6 2.9 2.1 5.3 8.4 11.5 10.5 9.6 13.0 16.3 16.5 16.6 18.5 20.3 20,8 21.3 21.3 21.3 21.3 20.3 19.3 19.9 20.5 20.2 20.0 18.2 16.5 15.5 14.5 14.1 13.8 13.4 11.5 9.5 8.4 7.3 6.3 5.2 4.4 3.6 2.4 1.1 1.1 Solar 1314 1056 1820 2720 2341 2613 2405 4011 6120 6613 3872 8986 6669 9290 11493 11811 13985 11815 14506 15824 14201 9438 16722 17145 14556 18161 18590 15670 10494 12495 11447 15042 12374 13845 9043 9447 5714 6945 4957 4097 3572 4168 2734 2794 2479 1670 1243 1185 2190 1469 921 1979

N

5.64 6.06 5.28 4.51 4.32 4.13 3,93 3.74 3.32 2.90 2.60 2.30 2.35 2.40 2.45 2.25 2.05 2.23 2.42 2.90 3.38 3.31 3.25 3.60 3.95 4.05 4.15 4.25 4.97 5.68 5.22 4.75 3.98 3.22 3.27 3.32 3.53 3.75 3.89 4.04 4.IS 4.41 4.65 4.44 4.22 4.21 4.20 4.27 4.33 4.18 4.03 4,04

P

0.330 0.280 0.215 0.150 0.163 0.175 0.188 0.200 0.210 0.220 0.200 0.180 0.193 0.207 0.220 0.255 0.290 0.335 0.380 0.375 0.370 0.370 0.370 0.450 0.530 0.553 0.577 0.600 0.575 0.550 0.490 0.430 0.425 0.420 0.400 0.380 0.360 0.340 0.337 0.333 0.33C 0.340 0.350 0.320 0.290 0.295 0.300 0.320 0.340 0.315 0.290 0.277 Si . 4.20 4.08 4.10 4.13 4.13 4.13 4.13 4.13 4.13 4.13 4.13 4.13 2.00 0.12 0.14 0.16 0.18 0.30 0.42 0.87 1.32 1.62 1.92 2.33 2.75 3.21 3.66 4.12 4.39 4.65 4.80 4.95 4.83 4.72 4.62 4.52 4,45 4.38 4.38 4.38 4.38 4.33 4.28 4.18 4.08 4.01 3.95 3.90 3.85 3.86 3.88 3.76 a-18

Teble A.18

Cases Lake Wolderwijd. Year: 1975. i nputs.

Weekly lake apecific

Week 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 Temp 5.3 5.3 4.8 4.3 3.6 3.0 3.5 4.0 5.0 6.0 4.7 3.5 4.3 5.1 6.6 8.1 10.1 12.0 12.6 13.1 13.7 14.3 12.1 17.7 23.3 18.8 18.8 18.7 18.6 20.4 22.1 21.6 21.1 20.5 20.0 19.1 18.1 16.0 13,9 11.7 9.6 7.5 7.6 7.6 6.1 4.5 3.8 3.1 4.1 0.8 2.1 3.S Solar 1244 1722 1430 1745 2812 3930 3357 5824 5113 3378 4130 5967 5680 6507 6679 8382 8255 12057 9576 12750 13984 12588 17441 14423 14073 15899 12619 13823 11568 12938 15257 12714 8705 9871 10478 8173 6717 8465 5755 4876 5194 4350 2816 3048 2270 1747 2188 1362 1545 1646 1210 672 2 2 3. 3. 3. 3. 3. 3. 3. 2. 2. 2. 2. 2. 2. 2. 3. 3. 3. 3. 3. 3. 3. 3. 3. 3. 3. 3. 4. 4. 4. 4. 4. 4. 4. 4. 4. 4. 4. 4. 4. 4. 4. 3. 3. 3. 2. 2. 3. 2. 2. 2.

N

90 90 16 43 31 20 35 50 23 96 86 77 53 30 64 98 20 42 47 52 57 62 48 45 42 35 60 84 09 33 58 52 45 39 32 30 28 41 54 66 79 92 37 82 72 62 98 34 70 87 84 69 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 p .200 .200 .205 .210 .215 .220 .180 .140 .140 .140 .160 .180 .185 .190 .185 .180 .190 .200 .210 .220 .230 .240 .330 .330 .330 .420 .454 .488 .522 .556 .590 .548 .505 ,462 .420 .430 .440 .412 .384 .356 .328 .300 .280 .260 .245 .230 .220 .210 .220 .200 .190 .170 3 3 4 4 4 3 3 3 3 3 3 3 2 0 0 0 0 0 0 0 0 0 0 1 1 2 2 2 3 3 3 3 3 4 4 5 5 5 5 5 5 5 4 4 5 5 5 4 4 4 4 4 Si .98 .98 .11 .25 .11 .98 .76 .55 .55 .55 .55 .55 .00 .50 .05 .06 .06 ,06 .21 .37 .52 .68 .68 .17 .65 .62 .79 .96 .14 .31 .48 .68 .88 .08 .28 .08 .88 .71 .54 .36 .19 .02 .70 .38 .06 .75 .14 .53 .35 .75 .62 .52 a-19

Table A.19 Case: Lake Wolderwijd. Yeör: 1976 inputs.

Weekly lake specific

Week 1 2 3 4 5 6 7 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 Temp 5.5 7.1 6.6 6.1 5.6 5.0 4.5 4.0 2.7 1.5 1.9 2.3 5.4 8.4 11.5 10.6 9.7 13.1 16.5 16.3 16.1 18.6 21.1 21.4 21.6 21.6 21.5 21.4 20.3 19.1 19.5 19.8 20.1 20.5 18.2 16.0 15.2 14.5 14.2 13.9 13.6 11.6 9.6 8.4 7.2 6.2 5.2 4.5 3.8 2.4 1.1 1.0 Solar 1314 1056 1820 2720 2341 2613 2405 4011 6120 6613 3872 8986 6669 9290 11493 11811 13985 11815 14506 15824 14201 9438 16722 17145 14556 18161 18590 15670 10494 12495 11447 15042 12374 13845 9043 9447 5714 6945 4957 4097 3572 4168 2734 2794 2479 1670 1243 1185 2190 1469 921 1979

N

2.55 2.40 3.15 3.90 3.66 3.41 3.17 2.93 2.48 2.03 1.65 1.27 1.36 1.46 1.55 1.46 1.37 1.26 1.15 1.53 1.92 1.98 2.05 2.50 2.95 3.24 3.53 3.82 3.59 3.35 3.91 4.48 3.75 3.02 3.07 3.12 3.14 3.15 3.15 3.15 3.15 3.11 3.08 2.95 2.83 2.81 2.78 2.81 2.84 2.71 2.58 2.70

P

0.150 0.130 0.110 0.090 0.098 0.105 0.113 0.120 0.105 0.090 0.090 0.090 0.090 0.090 0.090 0.105 0.120 0.155 0.190 0.195 0.200 0.225 0.250 0.265 0.280 0.290 0.300 0.310 0.305 0.300 0.335 0.370 0.395 0.420 0.385 0.350 0,310 0.270 0.253 0.237 0.220 0.200 0.180 0.165 0.150 0.160 0.170 0.160 0.150 0.145 0.140 0.137 St 4.42 4.32 4.44 4.55 4.44 4.33 4.23 4.12 4.12 4.12 4.12 4.12 2.00 0.50 0.10 0.11 0.12 0.25 0.38 0.50 0.62 0.80 0.98 1,33 1.68 1.96 2.24 2.52 2.72 2.92 2.99 3.05 3.17 3.28 3.36 3.45 3.35 3.25 3.28 3.32 3.35 3.35 3,35 3.28 3.22 3,17 3.12 3.10 3.08 3.11 3.15 3.12 a-20

Table A.20

Case: Lake IJssel. Year: 1976. Waekly lake specific inputs.

Week l 2 3 4

5

6

7

8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 Temp 4.9 5.9 6.9 6.5 6.1 5.8 5.4 5.0 4.6 4.3 3.9 5.1 6.4 7.6 8.8 10.1 11.3 12.5 13.6 14.5 15.4 16.3 17.1 17.5 17.9 18.3 18.7 19.1 19.5 19.5 19.5 19.5 19.5 18.5 17.5 16.5 15.6 14.6 13.7 12.8

11.8

10.9 9.7 8.5 7.4 6.2 5.4 4.6 3.8 3.0 2.4 1.8 Solar 1314 1056 1820 2720 2341 2613 2405 4011 6120 6613 3872 8986 6669 9290 11493

11811

13985 11815 14506 15824 14201 9438 16722 17145 14556 18161 18590 15670 10494 12495 11447 15042 12374 13845 9043 9447 5714 6945 4957 4097 3572 4168 2734 2794 2479 1670 1243 1185 2190 1469 921 1979

N

4.13 4.66 5.18 5.28 5.38 5.48 5.57 5.67 5.77 5.87 5.97 5.83 5.69 5.55 5.41 5.27 4.90 4.52 4.15 3.78 3.40 3.03 2.66 2.59 2.52 2.44 2.37 2.30 2.23 2.33 2.44 2.54 2.64 2.66 2.69 2.71 2.73 2.74 2.75 2.77 2.78 2.79 2.77 2.75 2.73 2.71 2.81 2.90 3.00 3.10 3.28 3.46

P

0.170 0.185 0.200 0.202 0.205 0.208 0.210 0.212 0.215 0.217 0.220 0.220 0.220 0.220 0.220 0.220 0.210 0.200 0.190 0.180 0.170 0.160 0.150 0.170 0.190 0.210 0.230 0.250 0.270 0.270 0.270 0.270 0.270 0.258 0.245 0.232 0.220 0.206 0.192 0.178 0.164 0.150 0.143 0.135 0.128 0.120 0.113 0.105 0,098 0.090 0.112 0.134 Si 0.74 0.98 1.22 1.10 0.98 0.86 0.74 0.63 0.51 0.39 0.27 0.23 0,19 0.15 0.11 0.07 0.12 0.18 0.23 0.24 0.25 0.26 0.27 0.44 0.61 0.77 0.94 1.11 1.28 1.15 1.02 0,90 0.77 0.64 0.51 0.38 0.25 0.22 0.18 0.15 0.11 0.08 0.11 0.14 0,17 0.20 0,29 0.39 0.49 0.58 0.73 0.88 a-21

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NOHINAL RUN. A 4

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GROTE RUG, RING 1 1976. P IN PHYTOPLANKTON,

ZOÖPLANKTON AND DETRITUS (PLANKTONIC P) AND THE

SUI1 OF ALL OTHER FRACTI0N5 (REST P) IN UG/L.

NQH1NAL RUN.

GROTE RUG, RING 1 2976. N2 IH PHYTOPLANKTON,

ZOÖPLANKTON AND DETRIJUS (PLANKTONIC NZ) AND THE

5W1 OF ALL OTHER FRACTI0N5 (REST N2) IN IK3/L.

U0H1NAL RUN.

A4

o o o_Ifl (VI OB S CHLROP H -i 83 d ai

x:

rPRE O CHLR O S 3 ; 84 CQ o CJ 1 l/l oo o 10 </1 UJ UJ (O o (0 O O o (0

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8

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GR07E Rt/O, RING 3 1977. PKEDICTED

CHLOROPHYLL IN U6/L. NÖHIN^tL (?U«.

0B5ERVE0

O oo (O o liï l

8

o in oui

GKOTE RUG, PING 3 1977. P IN PHY10PLANKT0N, ZOÖPLANKTON AND ÖETRITUS (PLAUKTONIC P) AMD THE SUN OF ALL OTHER FRACTIQH5 (REST P) IN UG/L.

NOMINA. /?UN. A4

• (O I o I o I es S5 o • Irt t Cl I in 1 o «(O X ÜJ U O w * O» (f) (0 C\J o

RUG, J?ING J 1977. H2 IN PHYTOPLANKTON,

ZOÖPLANKTON AND OfTKITUS fPL/NKTONIC N2J AND THE

SLM OF /1LL 07HER FRACJ10N5 (REST HZ) IN UG/L.

NOMINAL RUN.

A4

I I

Q |-P H

tti H H

GROTE RUG, RESERVOIR 1977. PREDICTEO AND

0B5ERVED CHLOROPHYLL IN UG/L. NOUINAL RUN.

A4

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3 Fig * i Oo ^^^^ ^ O C O 3( 3 s = : o o Z O r ~ r n £ " * z 3 c 3a r -i e s G r ~ o -• Q ^ _—i i k r n i 2 : w > rn o r n 5 0 5 C "n m o 1-1 C s ü O <r t -j Z -v j

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* ~ —i rJ 1 1 U-f ' ' rJ I 1 •— - J r - - - J r-1 r1 rJ i , r— —' i i I T m f (O <0 RESERVOIR 1977. * T rJ I i CM N2 IN rJ i— — r j r« rJ h r- -1

1

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i ! 1 o ui • i <-• o PHYTOPLAHKTON, ,MD DETfJITUS ^PL^NKTONlC N2) AND OTHER FRAGTIQNS •

HYDRAULICS

(REST N2) IN UG/L. LABORATORY THE a c | J i H i (Vi o (O o (D O (O O o o t o (O JC UJ Ol A 1 1 1 1 A4

Fig. A-8.3 1

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3J "3 O O -4 o -: O o o o ui m PRE D CHLROP H 5B S CHLROP H B3 ; 200 . -i 150 . -100 . -50 . - 0. 0 26. 0 39. 0 -200 . -150 . -100 . SO . S2. 0 -> WEEK S PH O -| SI L " NI T E

o o ö I

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CM Ui UJ A J 1 1 1 o» en o UI

GROTE f?U6, RING 2 1973. P IN PHYTOPLANKTON, ZOÖPLANKTON AND DETR1TUS (PLANKTONIC P) AND THE SUH OF ALL OUIER FRACT10NS (REST P) IN UG/L,

N0H2NAL RUN. A 4

(O O

.si

I I 1 oI CO - -\ CO O o , f ÜJ A 1 1 l 01 en (O CJ UJ (O o Ld

GROTE RUG, RING 2 197a. HZ IN PHYTQPLANKTON,

ZOÖPLANKTON AND DETRITUS (PLANKTONIC N2) AND THE

SÜM OF ALL OTHER FRACUONS (REST N2) IN UQ/L.

N01MNAL RUN.

A4

OiJH ta H H FM W 13 W

, 1 9 7 5 . PffÉÖICJED >)ND 0B5EJ?VE0 CHLOROPHYLL I N LfG/L. NOHINAL RUN.

A 4

1 tfi • o 1 in t o | a • i m * o | •

LAKE VELVHE, 1975. P IN PHYTQPLANKTON,

ZOÖPLANKTON AND DF.TRITU5 (PLANKTONIC P) AND THE SUH OF ALL OTHER FRACT1QNS (REST P) IN UG/L. NOHINAL RUW.

(O O • * L o o ot en L o * w₁ o 1 CJ _o V5LUWE, 1975. W2 IN PHY10PLANK1QN,

ZOÖPLANKTON AND DEJRITUS (PLANKTONIC N2) AND THE SI/M OF ALL OTHER FRACTIONS (REST NZ) IN UG/L.

N0H1NAL RUN. A4

O. CC

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CL. (D OC X

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P h J H W H H PJ W H W

VELUUE, 1976. PREDICTED AHD OBSERVED

CHLQRQPHYLL IN UG/L. NOHINAL RUU.

LAKE VELUUE, 1976. P IN PHYTOPLANKWN,

ZOÖPLANKTON AND DETRITUS (PLANKTONIC P> AND THE SW1 OF ALL QTHER FRACTI0N5 (REST P) IN UÖ/L. NOHINAL RUN.

(0 O

CD _\n

VELVUE, 19 76. UZ IN PHYTOPLANKTON, ZOÖPLANKTON AND DETR1TU5 (PLANKTONIC H2)

5UH OF ALL OTHER FRACT10NS (REST NZ) IN UG/L.

NOMNAL RUN. A4

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LAKE UQLDERHIJD, 19/5. PREDICTEO XND QBSERVED CHLOROPHYLL IN UG/L. «0MJN»L RUN.

ff) f-— Itf t J ' '"" ^ H

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1 1 & en • « o o PHYTOPLANKTON, US (PLANKTONIC P) AND I0NS

DELFT HYDRAULICS

(REST P) IN UG/L. LABORATORY CVI • o t 1

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LAKE UOLDERUIJD, 1975. N2 IN PHYTDPLANKTON,

ZOÖPLANKTON AH O DETRITU5 (PLANKTONIC N2) AND THE

SIM OF ALL OTHER FRACJIONS (REST N2) IN UG/L.

HOHINAL RUN.

0. o cc £

o

<0 00 X CU o cc o o UJ cc 0L a H H ia ÜOIDERUIJD, 1 9 7 6 . PKEDICTED >1ND

CHLOPOPHVLL IN UG/L. NOMINAL RUN.

A4

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LAKE UOLDERUMD, 1976. P IN PHYTÖPLAHKrON, ZOÖPLANKTON AND DETRITUS (PLANKTONIC P) AND THE 5UH OF ALL OJHER FRACTIONS (RE5T P) IN UG/L. NOHINAL RUN.

ut o t I CM (3 L. in l o • CM I O bJ bJ 3C A I I HQLDERHIJD, 1 9 7 6 . N? I N

ND DETRirUS (rL/tNXTONIC N2> AND THE SLf/T OF ylLL OTHER FP/1CTI0M5 <RE5f N^J JN Ü G / L .

NOMINA

DELFT

I P 3) C i

5

CO r

m

0 3) -t

0

3} ^f 3Q [ O P " ? ^ O r n O M 3C U I -< U I r n i~ r -X i — C l O * \ • • " 3 O O I-H O t~ b 1 3 Ik . c z o C O Ü J 3 0 •e : m -r-PRE O CHLROP H 500 . -U50 . -U00 . -3S0 . -300 . -250 . -200 . -150 . -100 . -50 . -0 . -i ^ i . — ' i i

L

J

1 1 0. 0 13. 0 26. 0 PH O -. NI T • E 08 S CHLRSP H -i -500 . -~—— — —^—— ' l -«O . -«100 . -350 . -300 . -250 . -200 . -150 . -100 . - 50 . - 0 . 39. 0 52. 0 > HEEK S

(O o I I

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L/1KE IJS5EL, 1 9 7 6 . P IN PHYTÖPLAHKTON,

ZOÖPLANKTON AND DETRI7US (PLANKTONIC P) AND THE SUN OF ALL OTHER FRACTIONS (REST P) IN UG/L. HOItlNAL RUN.

o o CM H en CO

o

UJ SC A I I I 01 4 _ o t (O I o « 1 o # 1 o Cd 1 o JJSSEL, 1976. N2 IN PHYTQPLANKTON,

ZÖQPLAKKTON AND DETRI1US (PLAÏ1KT0NÏC N2> AND THE 5VH OF ALL 0TI1ER FRACJI0N5 (REST N2> IN UG/L.

NQHINAL RUN. A 4

I I

P-i

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GffüTE RUG, RING 1 1976. PKEEUCTED MD OBSERVEÖ

CHLOROPHYLL IN VG/L. DYNAMIC DETRITVS RUN.

A4

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in

GROTE RUG, RIHG 1 1976. P IN PHYTOPLANKTON, ZQQPLANKIQN AND QETRITU5 (PLANKTONIC P) AND THE SIJM OF ALL OTHER FP.ACTI0NS (REST P> IN UG/L.

DYNAHIC DETRITU5 RUN.

A

4

GROTE RUG, RING 1 1976, N2 IN PHYTOPLANKTON, ZOÖPLANKTON AND DETRITU5 (PLANKTONIC N2) AND THE $VH OF ALL QTHER FRACTIQNS (REST NZ? IN UG/L . DYNAHIC DETRITU5 RUN.

D m

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t

PRE O CHLfiffP H ,B2,B 3 CB S CHLR3P H B3 200 . -i 1S0 . -100 . -50 . - 0. 0

so

.

PHO , SIL -NI T E

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GROTE RUG, RING 2 1978. P IW

ZOÖPLANKTON AND DETRITUS (PLANKTONIC P) AND THE

SUH OF ALL QTHER FRACTIONS (REST P) IN UG/L.

DYNAMIC DETRITUS RUN.

A4

V»

n

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H

H

•'T LJ LJ (O r1 tD u. Dl ' o t/7 t I F) I o f j 1 V) » • « I

o

i UI o

GROTE J?UG, SINÖ 2 1973, N? JN PHVTOPL>IN*:rON, ZOÖPLANKTON AND DETRITUS (PLANKTONIC N2) AND THE SUM OF ALL OTHER FRACTIONS (RE5T N2) IN UQ/L . DYNAMIC DETRITUS RUN.