Monitoring Cape Cod BayMonitoring Cape Cod Bay2006-20082006-2008

Signell, R.P., Jenter, H.L., and Blumberg, A.F., 2000, "Predicting the Physical Effects of Relocating Boston's Sewage Outfall,“

J. Estuarine, Coastal and Shelf Science

Summary of circulation within Massachusetts Bay (Lermusiaux et al. 2001.)

-70.8 -70.7 -70.6 -70.5 -70.4 -70.3 -70.2 -70.1 -70 -69.941.5

41.6

41.7

41.8

41.9

42

42.1

DuxburyBay

PlymouthHarbor

OldHarbor Scorton

CreekBarnstableHarbor

SesuitHarbor

PainesCreek

Cole RoadFirst EncounterBoat MeadowRock HarborLittle NamskaketNamskaket

WellfleetHarbor

Provincetown

BlackfishCreek

SunkenMeadow

HerringRiver

Canal

JonesRiver

EastHarbor

EllisvilleHarbor

PCCS Offshore StationsPCCS Stations (Ebb)Volunteer Stations

Surface BottomTe

mpe

ratu

re (C

)Sa

linity

(ppt

)D

isso

lved

Oxy

gen

(mg/

L)

Surface Bottom

Nitr

ate/

Nitr

ite (

M)

Ort

ho-P

hosp

hate

(M

)

p=0.181

Temperature

p=0.354

Salinity

Surface

Bottom

p=0.783 p=0.019

p=0.013 p=0.506

Nitrate/Nitrite Ortho-Phosphate

Surface

Bottom

p=0.004 p=0.336

-70.8 -70.7 -70.6 -70.5 -70.4 -70.3 -70.2 -70.1 -70 -69.941.5

41.6

41.7

41.8

41.9

42

42.1

-70.8 -70.7 -70.6 -70.5 -70.4 -70.3 -70.2 -70.1 -70 -69.941.5

41.6

41.7

41.8

41.9

42

42.1

0 1 2 3 4 5 6 7 8 9

0 1 2 3 4 5

0 2 4 6 8 10 12

WINTER: December, January, February

2006/07 2007/08

-70.8 -70.7 -70.6 -70.5 -70.4 -70.3 -70.2 -70.1 -70 -69.941.5

41.6

41.7

41.8

41.9

42

42.1

-70.8 -70.7 -70.6 -70.5 -70.4 -70.3 -70.2 -70.1 -70 -69.941.5

41.6

41.7

41.8

41.9

42

42.1

Nitrate/Nitrite (M)

SPRING: March, April, May

-70.8 -70.7 -70.6 -70.5 -70.4 -70.3 -70.2 -70.1 -70 -69.941.5

41.6

41.7

41.8

41.9

42

42.1

0 1 2 3 4 5 6 7 8 9

0 1 2 3 4 5

2006 2007 2008

-70.8 -70.7 -70.6 -70.5 -70.4 -70.3 -70.2 -70.1 -70 -69.941.5

41.6

41.7

41.8

41.9

42

42.1

-70.8 -70.7 -70.6 -70.5 -70.4 -70.3 -70.2 -70.1 -70 -69.941.5

41.6

41.7

41.8

41.9

42

42.1

-70.8 -70.7 -70.6 -70.5 -70.4 -70.3 -70.2 -70.1 -70 -69.941.5

41.6

41.7

41.8

41.9

42

42.1

0 2 4 6 8 10 12

-70.8 -70.7 -70.6 -70.5 -70.4 -70.3 -70.2 -70.1 -70 -69.941.5

41.6

41.7

41.8

41.9

42

42.1

-70.8 -70.7 -70.6 -70.5 -70.4 -70.3 -70.2 -70.1 -70 -69.941.5

41.6

41.7

41.8

41.9

42

42.1

Nitrate/Nitrite (M)

-70.8 -70.7 -70.6 -70.5 -70.4 -70.3 -70.2 -70.1 -70 -69.941.5

41.6

41.7

41.8

41.9

42

42.1

-70.8 -70.7 -70.6 -70.5 -70.4 -70.3 -70.2 -70.1 -70 -69.941.5

41.6

41.7

41.8

41.9

42

42.1

-70.8 -70.7 -70.6 -70.5 -70.4 -70.3 -70.2 -70.1 -70 -69.941.5

41.6

41.7

41.8

41.9

42

42.1

SUMMER: June, July, August

0 1 2 3 4 5 6 7 8 9

0 1 2 3 4 5

2006 2007 2008

0 2 4 6 8 10 12

-70.8 -70.7 -70.6 -70.5 -70.4 -70.3 -70.2 -70.1 -70 -69.941.5

41.6

41.7

41.8

41.9

42

42.1

-70.8 -70.7 -70.6 -70.5 -70.4 -70.3 -70.2 -70.1 -70 -69.941.5

41.6

41.7

41.8

41.9

42

42.1

-70.8 -70.7 -70.6 -70.5 -70.4 -70.3 -70.2 -70.1 -70 -69.941.5

41.6

41.7

41.8

41.9

42

42.1

Nitrate/Nitrite (M)

-70.8 -70.7 -70.6 -70.5 -70.4 -70.3 -70.2 -70.1 -70 -69.941.5

41.6

41.7

41.8

41.9

42

42.1

-70.8 -70.7 -70.6 -70.5 -70.4 -70.3 -70.2 -70.1 -70 -69.941.5

41.6

41.7

41.8

41.9

42

42.1

-70.8 -70.7 -70.6 -70.5 -70.4 -70.3 -70.2 -70.1 -70 -69.941.5

41.6

41.7

41.8

41.9

42

42.1

FALL: September, October, November

0 1 2 3 4 5 6 7 8 9

0 1 2 3 4 5

2006 2007 2008

0 2 4 6 8 10 12

-70.8 -70.7 -70.6 -70.5 -70.4 -70.3 -70.2 -70.1 -70 -69.941.5

41.6

41.7

41.8

41.9

42

42.1

-70.8 -70.7 -70.6 -70.5 -70.4 -70.3 -70.2 -70.1 -70 -69.941.5

41.6

41.7

41.8

41.9

42

42.1

-70.8 -70.7 -70.6 -70.5 -70.4 -70.3 -70.2 -70.1 -70 -69.941.5

41.6

41.7

41.8

41.9

42

42.1

Nitrate/Nitrite (M)

Dissolved O

xygen (m

g/L)

9S

8M

7S

6S

5S

9N 5N

6M

NO3D.O.

HNLO

• High-Nutrient Low-Oxygen Pool (Jiang et al. 2007)

• Modeled and observed results (2000)

• Controlled by 3 factors– Southward coastal transport of

organic– Long residence time– High temperature and strong

stratification

Cape Cod Bay

NTU

Turbidity

Dissolved Oxygen

mg/

L

MM

Nitrate/Nitrite

Ortho-Phosphate

-70.12 -70.08 -70.04 -70.00 -69.96 -69.9241.84

41.86

41.88

41.9

41.92

41.94

41.96

2006

2007

2008

(M

)(

M)

(M

)(

M)

(M

)

Nitrate/Nitrite Total Nitrogen

-70.12 -70.08 -70.04 -70.00 -69.96 -69.9241.84

41.86

41.88

41.9

41.92

41.94

41.96

Herring RiverNorth Sunken Meadow

Herring River: Nina Kaars

North Sunken Meadow: Elizabeth Skelton

Nitr

ate/

Nitr

ite (

M)

Volunteer Stations

Acknowledgements

Citizen Scientists

Aimee TeabyKaren KramerJoann Figueras

Val MagorBill and Lois Edwards

Diana StinsonTheresa Barbo

Arthur NeillRegina Asmutis-SilviaCarol “Krill” Carson

Nina KaarsPhil and Betty Suraci

Scott and Heather GrenonKeith Harrison

Elizabeth SkeltonTraute and David Bushley

http://www.mwra.state.ma.us/harbor/html/soh2002_38.htm

MWRA Stations PCCS Stations