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Phytoplankton monitoring in the Great Salt Lake (Utah, USA) using a combination of satellite and on-lake remote sensing Shane Bradt 1, Wayne Wurtsbaugh.

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Presentation on theme: "Phytoplankton monitoring in the Great Salt Lake (Utah, USA) using a combination of satellite and on-lake remote sensing Shane Bradt 1, Wayne Wurtsbaugh."— Presentation transcript:

1 Phytoplankton monitoring in the Great Salt Lake (Utah, USA) using a combination of satellite and on-lake remote sensing Shane Bradt 1, Wayne Wurtsbaugh 2, David Naftz 3, Timothy Moore 1, James Haney 1 1 University of New Hampshire, Durham, NH, USA 2 Utah State University, Logan, UT, USA 3 United States Geological Survey, Salt Lake City, UT, USA

2 synoptic surveys 2. Remote sensing technique development 3. Spatial & temporal phytoplankton dynamics

3 synoptic surveys 2. Remote sensing technique development 3. Spatial & temporal phytoplankton dynamics

4 10 km Bear River Farmington Bay Salt Lake City Gilbert Bay Gunnison Bay Causeway

5 Eutrophication --Ecology --Anoxia --Cyanotoxins --Artemia..? Nodularia bloom in Farmington Bay

6 Study Objectives Understand spatial dynamics of phytoplankton populations of the Great Salt Lake Assess impact of Farmington Bay eutrophication on larger Great Salt Lake

7 Limnology -Extracted chlorophyll -Secchi disk -In vivo fluoresence (Chl a, Phc) -Salinity -Nitrogen fixation -Phytoplankton -Zooplankton

8 Remote sensing -MODIS imagery -On-lake reflectance -Extraction chlorophyll -CDOM

9 May 31–June 3, stations May 17-May 21, stations June 20-23, stations Nov 29-Dec 2, stations TOTAL STATIONS 116

10 May 31–June 3, stations – 18 spectra May 17-May 21, stations – 25 spectra June 20-23, stations – 0 spectra Nov 29-Dec 2, stations – 8 spectra TOTAL STATIONS 116 TOTAL SPECTRA 51

11

12 10 km May 2005

13 synoptic surveys 2. Remote sensing technique development 3. Spatial & temporal phytoplankton dynamics

14 Pigment data from lake collections Great Salt Lake specific Chl algorithm 2 Jun May 057 Jun 059 Jun 0514 Jun 0517 Jun 0526 May 0513 May 058 May 05 MODIS “standard” Chl algorithm

15 Synoptic surveys, 53 points

16 USGS monthly sampling sites

17 Monthly samples, 23 points

18 synoptic surveys 2. Remote sensing technique development 3. Spatial & temporal phytoplankton dynamics

19 AprMayJunJulAugSepOctNovDec 2006

20 AprMayJunJulAugSepOctNovDec 2006

21 AprMayJunJulAugSepOctNovDec 2006

22 Chlorophyll a (ug/L) Jun 9Jun 11Jun 13Jun 15Jun 17Jun 19Jun 21Jun 23Jun 25Jun 27Jun 29Jun 7Jun 5Jul

23 Chlorophyll a (ug/L) Jun 9Jun 11Jun 13Jun 15Jun 17Jun 19Jun 21Jun 23Jun 25Jun 27Jun 29Jun 7Jun 5Jul

24 Chlorophyll a (ug/L) Jun 9Jun 11Jun 13Jun 15Jun 17Jun 19Jun 21Jun 23Jun 25Jun 27Jun 29Jun 7Jun 5Jul

25 Chlorophyll a (ug/L) Jun 9Jun 11Jun 13Jun 15Jun 17Jun 19Jun 21Jun 23Jun 25Jun 27Jun 29Jun 7Jun 5Jul

26 Chlorophyll a (ug/L) Jun 9Jun 11Jun 13Jun 15Jun 17Jun 19Jun 21Jun 23Jun 25Jun 27Jun 29Jun 7Jun 5Jul

27 Chlorophyll a (ug/L) Jun 9Jun 11Jun 13Jun 15Jun 17Jun 19Jun 21Jun 23Jun 25Jun 27Jun 29Jun 7Jun 5Jul

28 Chlorophyll a (ug/L) Jun 9Jun 11Jun 13Jun 15Jun 17Jun 19Jun 21Jun 23Jun 25Jun 27Jun 29Jun 7Jun 5Jul

29 Chlorophyll a (ug/L) Jun 9Jun 11Jun 13Jun 15Jun 17Jun 19Jun 21Jun 23Jun 25Jun 27Jun 29Jun 7Jun 5Jul

30 Chlorophyll a (ug/L) Jun 9Jun 11Jun 13Jun 15Jun 17Jun 19Jun 21Jun 23Jun 25Jun 27Jun 29Jun 7Jun 5Jul

31 Chlorophyll a (ug/L) Jun 9Jun 11Jun 13Jun 15Jun 17Jun 19Jun 21Jun 23Jun 25Jun 27Jun 29Jun 7Jun 5Jul

32 Chlorophyll a (ug/L) Jun 9Jun 11Jun 13Jun 15Jun 17Jun 19Jun 21Jun 23Jun 25Jun 27Jun 29Jun 7Jun 5Jul

33 Chlorophyll a (ug/L) Jun 9Jun 11Jun 13Jun 15Jun 17Jun 19Jun 21Jun 23Jun 25Jun 27Jun 29Jun 7Jun 5Jul

34 Chlorophyll a (ug/L) Jun 9Jun 11Jun 13Jun 15Jun 17Jun 19Jun 21Jun 23Jun 25Jun 27Jun 29Jun 7Jun 5Jul

35 Chlorophyll a (ug/L) Jun 9Jun 11Jun 13Jun 15Jun 17Jun 19Jun 21Jun 23Jun 25Jun 27Jun 29Jun 7Jun 5Jul

36 Chlorophyll detection on the GSL Test GSL MODIS algorithm on other years Look at other satellite options MODIS land team, other MODIS algorithms, MERIS Use spectra to develop new algorithms bottom influence on signal phycocyanins - cyanobacteria Future applications of RS method Great Salt Lake use chlorophyll maps with Artemia populations use chlorophyll maps with hydrological modeling Other Saline Lakes… Next steps…

37 We would also like to thank: UNH: Janet Campbell, Mark Dowell USU: Phillip Brown, Andrew, Johnson, Ashley Nielson, Sonja Raub, Kris Bell, Amy Marcarelli USGS: Terry Kenney, David Allen, Cory Angeroth CALMIT: Bryan Leavitt, Giorgio Dall’Olmo Creighton: John Schalles Funding: United States Geological Survey Utah State University Utah Division of Wildlife Resources Central Davis Sewer Improvement District Project Lake Watch (NSF) New Hampshire Space Grant Consortium


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