Monitoring
Glossary of Monitoring Terms
Compiled by Heather Peterson, US Geological Survey
A D C P : A c o u s t i c D o p p l e r C u r r e n t P r o f i l e r s
B M I : B e n t h i c M a c r o - I n v e r t e b r a t e
C h l a: C h l o r o p h y l l a i s a g r e e n p h o t o s y n t h e t i c p i g m e n t f o u n d i n m o s t p l a n t s , a l g a e , a n d c y a n o b a c t e r i a . F o r t h i s p r o j e c t , c h l o r o p h y l l a c o n c e n t r a t i o n i s u s e d a s a p r o x y m e a s u r e m e n t f o r p h y t o p l a n k t o n c o n c e n t r a t i o n .
C o n d u c t i v i t y : ( a l s o k n o w n a s e l e c t r i c a l c o n d u c t i v i t y , o r E C ) C o n d u c t i v i t y i s a m e a s u r e o f a m a t e r i a l ' s a b i l i t y t o c o n d u c t a n e l e c t r i c c u r r e n t . F o r t h i s p r o g r a m E C i s m e a s u r e d i n a m b i e n t w a t e r . I n g e n e r a l , a s w a t e r ' s s a l i n i t y i n c r e a s e s , s o d o e s t h e c o n c e n t r a t i o n i f i o n s a n d t h e w a t e r ' s a b i l i t y t o c o n d u c t e l e c t r i c c u r r e n t . E C i s g e n e r a l l y r e p o r t e d i n m i c r o S i e m e n s p e r c e n t i m e t e r (µS / c m ) .
C s : C e s i u m
C T D : A n i n s t r u m e n t t h a t s i m u l t a n e o u s l y m e a s u r e s e l e c t r i c a l c o n d u c t i v i t y , t e m p e r a t u r e , a n d p r e s s u r e ( d e p t h ) . O f t e n s e n s o r s f o r o t h e r c o n s t i t u e n t s s u c h a s d i s s o l v e d o x y g e n , a n d p H a r e a l s o b u n d l e d w i t h t h e C T D s e n s o r a r r a y .
C u : C o p p e r
D a t a s o n d e : a n i n s t r u m e n t p a c k a g e w i t h s e n s o r s t h a t m e a s u r e c o n d u c t i v i t y , t e m p e r a t u r e , p r e s s u r e ( d e p t h ) , a n d o t h e r w a t e r q u a l i t y c o n s t i t u e n t s s u c h a s d i s s o l v e d o x y g e n , t u r b i d i t y , a n d c h l o r o p h y l l a . I n s t r u m e n t p a c k a g e s o f t e n c o m e w i t h i n t e r n a l d a t a - l o g g i n g d e v i c e s . S o n d e s c a n b e c a r r i e d b y f i e l d s t a f f t o c o l l e c t i n - s i t u m e a s u r e m e n t s o r l e f t i n - s i t u f o r e x t e n d e d p e r i o d s ( w e e k s o r m o n t h s ) t o c o l l e c t d a t a a t r e g u l a r ( g e n e r a l l y 1 5 - m i n u t e ) i n t e r v a l s .
D i s c r e t e D a t a : D a t a a r e c o l l e c t e d m a n u a l l y , b y m o n i t o r i n g s t a f f d u r i n g s a m p l i n g e v e n t s . T y p i c a l l y s a m p l i n g e v e n t s o c c u r w e e k l y , m o n t h l y o r a n n u a l l y .
D O : D i s s o l v e d O x y g e n , t h e a m o u n t o f g a s e o u s o x y g e n ( O 2 ) d i s s o l v e d i n a n a q u e o u s s o l u t i o n . D O i s g e n e r a l l y r e p o r t e d i n m g / l .
D O C : D i s s o l v e d o r g a n i c c a r b o n ; t h e o r g a n i c c a r b o n p r e s e n t i n s u r f a c e w a t e r t h a t p a s s e s a 0 . 2 m m f i l t e r .
E C : S e e C o n d u c t i v i t y .
G r a b S a m p l e s : F o r t h i s p r o g r a m g r a b s a m p l e s a r e w a t e r o r s e d i m e n t s a m p l e s c o l l e c t e d a t t h e s a m p l i n g s i t e f o r l a t e r a n a l y s i s i n a l a b o r a t o r y , i n c o n t r a s t t o d a t a c o l l e c t e d i n t h e f i e l d w i t h i n s t r u m e n t a t i o n s u c h a s a d a t a s o n d e .
H g : m e r c u r y
M e H g : M e t h y l m e r c u r y
N H 4 : A m m o n i u m
N i : N i c k e l
N O 2 : N i t r i t e
N O 3 : N i t r a t e
O B S : O p t i c a l B a c k s c a t t e r , a m e a s u r e o f t u r b i d i t y o r w a t e r c l a r i t y
O P P e s t i c i d e s : o r g a n o p h o s p h a t e , o r g a n o p h o s p h o r u s p e s t i c i d e s
P A H s : P o l y c y c l i c a r o m a t i c h y d r o c a r b o n s
P b : L e a d
P B D E : p o l y b r o m i n a t e d d i p h e n y l e t h e r
P C B s : p o l y c h l o r i n a t e d b i p h e n y l s
p H : p H i s a m e a s u r e o f t h e a c i d i t y o f a s o l u t i o n i n t e r m s o f a c t i v i t y o f h y d r o g e n i o n s ( H + ) . M a t e r i a l s w i t h a p H b e l o w 7 a r e c o n s i d e r e d t o b e a c i d i c , w h i l e m a t e r i a l s w i t h a p H a b o v e 7 a r e c o n s i d e r e d t o b e b a s i c .
P O 4 : P h o s p h a t e
p p t : P a r t s p e r t h o u s a n d
p s u : p r a c t i c a l s a l i n i t y u n i t s m e a s u r e t h e c o n d u c t i v i t y r a t i o o f a s e a w a t e r s a m p l e t o a s t a n d a r d K C l s o l u t i o n .
S 0 4 : S u l f a t e
S a l : S a l i n i t y
Se: Selenium
SFB: San Francisco Bay
SiO2: Silica – Silicon Dioxide
Sonde: See data sonde
SSC: Suspended sediment concentration
TEMP: Temperature, generally reported in degrees Celsius
TSS: Total suspended solids; for this program a measurement of the dry-weight of particles trapped by a filter, typically of a specified pore size
Turb: Turbidity, a measure of water cloudiness
- Comment on Compatibility Determinations for public uses within the Project
- March Project Newsletter available
- 2007 pond monitoring report available
- Watch a KQED TV story on the restoration
- Three Working Groups seek public participation to guide restoration
- Award-winning article on the restoration from Bay Nature Magazine