Slide 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 Slide 2 1. 2005-2006 synoptic surveys 2. Remote sensing technique development 3. Spatial & temporal phytoplankton dynamics Slide 3 1. 2005-2006 synoptic surveys 2. Remote sensing technique development 3. Spatial & temporal phytoplankton dynamics Slide 4 10 km Bear River Farmington Bay Salt Lake City Gilbert Bay Gunnison Bay Causeway Slide 5 Eutrophication --Ecology --Anoxia --Cyanotoxins --Artemia..? Nodularia bloom in Farmington Bay Slide 6 2005-2006 Study Objectives Understand spatial dynamics of phytoplankton populations of the Great Salt Lake Assess impact of Farmington Bay eutrophication on larger Great Salt Lake Slide 7 Limnology -Extracted chlorophyll -Secchi disk -In vivo fluoresence (Chl a, Phc) -Salinity -Nitrogen fixation -Phytoplankton -Zooplankton Slide 8 Remote sensing -MODIS imagery -On-lake reflectance -Extraction chlorophyll -CDOM Slide 9 May 31June 3, 2005 42 stations May 17-May 21, 2006 29 stations June 20-23, 2006 29 stations Nov 29-Dec 2, 2006 16 stations TOTAL STATIONS 116 Slide 10 May 31June 3, 2005 42 stations 18 spectra May 17-May 21, 2006 29 stations 25 spectra June 20-23, 2006 29 stations 0 spectra Nov 29-Dec 2, 2006 16 stations 8 spectra TOTAL STATIONS 116 TOTAL SPECTRA 51 Slide 11 Slide 12 10 km May 2005 Slide 13 1. 2005-2006 synoptic surveys 2. Remote sensing technique development 3. Spatial & temporal phytoplankton dynamics Slide 14 Pigment data from lake collections Great Salt Lake specific Chl algorithm 2 Jun 05 18 May 057 Jun 059 Jun 0514 Jun 0517 Jun 0526 May 0513 May 058 May 05 MODIS standard Chl algorithm Slide 15 Synoptic surveys, 53 points Slide 16 USGS monthly sampling sites Slide 17 Monthly samples, 23 points Slide 18 1. 2005-2006 synoptic surveys 2. Remote sensing technique development 3. Spatial & temporal phytoplankton dynamics Slide 19 AprMayJunJulAugSepOctNovDec 2006 Slide 20 AprMayJunJulAugSepOctNovDec 2006 Slide 21 AprMayJunJulAugSepOctNovDec 2006 Slide 22 Chlorophyll a (ug/L) Jun 9Jun 11Jun 13Jun 15Jun 17Jun 19Jun 21Jun 23Jun 25Jun 27Jun 29Jun 7Jun 5Jul 1 2006 Slide 23 Chlorophyll a (ug/L) Jun 9Jun 11Jun 13Jun 15Jun 17Jun 19Jun 21Jun 23Jun 25Jun 27Jun 29Jun 7Jun 5Jul 1 2006 Slide 24 Chlorophyll a (ug/L) Jun 9Jun 11Jun 13Jun 15Jun 17Jun 19Jun 21Jun 23Jun 25Jun 27Jun 29Jun 7Jun 5Jul 1 2006 Slide 25 Chlorophyll a (ug/L) Jun 9Jun 11Jun 13Jun 15Jun 17Jun 19Jun 21Jun 23Jun 25Jun 27Jun 29Jun 7Jun 5Jul 1 2006 Slide 26 Chlorophyll a (ug/L) Jun 9Jun 11Jun 13Jun 15Jun 17Jun 19Jun 21Jun 23Jun 25Jun 27Jun 29Jun 7Jun 5Jul 1 2006 Slide 27 Chlorophyll a (ug/L) Jun 9Jun 11Jun 13Jun 15Jun 17Jun 19Jun 21Jun 23Jun 25Jun 27Jun 29Jun 7Jun 5Jul 1 2006 Slide 28 Chlorophyll a (ug/L) Jun 9Jun 11Jun 13Jun 15Jun 17Jun 19Jun 21Jun 23Jun 25Jun 27Jun 29Jun 7Jun 5Jul 1 2006 Slide 29 Chlorophyll a (ug/L) Jun 9Jun 11Jun 13Jun 15Jun 17Jun 19Jun 21Jun 23Jun 25Jun 27Jun 29Jun 7Jun 5Jul 1 2006 Slide 30 Chlorophyll a (ug/L) Jun 9Jun 11Jun 13Jun 15Jun 17Jun 19Jun 21Jun 23Jun 25Jun 27Jun 29Jun 7Jun 5Jul 1 2006 Slide 31 Chlorophyll a (ug/L) Jun 9Jun 11Jun 13Jun 15Jun 17Jun 19Jun 21Jun 23Jun 25Jun 27Jun 29Jun 7Jun 5Jul 1 2006 Slide 32 Chlorophyll a (ug/L) Jun 9Jun 11Jun 13Jun 15Jun 17Jun 19Jun 21Jun 23Jun 25Jun 27Jun 29Jun 7Jun 5Jul 1 2006 Slide 33 Chlorophyll a (ug/L) Jun 9Jun 11Jun 13Jun 15Jun 17Jun 19Jun 21Jun 23Jun 25Jun 27Jun 29Jun 7Jun 5Jul 1 2006 Slide 34 Chlorophyll a (ug/L) Jun 9Jun 11Jun 13Jun 15Jun 17Jun 19Jun 21Jun 23Jun 25Jun 27Jun 29Jun 7Jun 5Jul 1 2006 Slide 35 Chlorophyll a (ug/L) Jun 9Jun 11Jun 13Jun 15Jun 17Jun 19Jun 21Jun 23Jun 25Jun 27Jun 29Jun 7Jun 5Jul 1 2006 Slide 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 Slide 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 DallOlmo 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