Histograms are created using data from 2010 to 2011 only when the buoy was present. Thresholds are indicated with dashed vertical lines.
Histograms of daytime and nighttime temperature differences between the Terra and Aqua overpasses, for (top) the buoy at the same time as the MODIS overpasses and (bottom) the MODIS overpasses at the location of the buoy. Thick black line indicates the best-fit line for all four daily overpasses, while thinner colored lines indicate the best-fit line for each overpass. Scatterplot of MODIS–buoy temperature differences vs the secant of the viewing angle. A thin solid line indicates the 0☌ temperature difference level, which is by definition the best-fit line in (e)–(h).
Thick solid lines in (a)–(d) indicate the best-fit lines for the secant of the viewing angle, while thick dashed lines indicate the best-fit lines for the oblique column water vapor content. Scatterplots of MODIS–buoy temperature differences vs viewing angle: (a)–(d) unadjusted and (e)–(h) adjusted for viewing angle. Threshold levels for channels 31 and 32, as a function of viewing angle from nadir. Preland mask examples from of MODIS Terra daytime SDS fields used in this study: (a) raw LST (b) LST after land masking, QC step, and bias-correction step (c) QC parameter (d) sky cover (e) channel 31 (10.780–11.280 μm) emissivity (f) channel 32 (11.770–12.270 μm) emissivity (g) satellite viewing angle and (h) visible composite. A star indicates the location of the USGS buoy used for WST calibration (buoy 1), three triangles indicate the locations of the USGS buoys used for verification (buoys 2267, 2565, and 3510), and a circle indicates the location of the Salt Lake City sounding.Īvailability by month for 20 of at least a single valid pixel over the GSL from the MODIS SST product for daytime (SST day) and nighttime (SST ngt), as well as LST for daytime (LST day) and nighttime (LST ngt).įlowchart of steps employed in creating the final WST dataset. Blue shades indicate bathymetry/topography below the lake's highest level in recorded history, while brown shades indicate topography above the high water mark. Topography and bathymetry of the GSL area.
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