Kang, Kyung-Kuk; Duguay, Claude R; Howell, Stephen E L; Derksen, Chris; Kelly, Richard E J (2010): (Table 1) Mean temperatures in january and july, and total annual snowfall at Great Bear Lake and Great Slave Lake, Canada [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.811808, Supplement to: Kang, K-K et al. (2010): Sensitivity of AMSR-E brightness temperatures to the seasonal evolution of lake ice thickness. IEEE Geoscience and Remote Sensing Letters, 7(4), 751-755, https://doi.org/10.1109/LGRS.2010.2044742
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Abstract:
The sensitivity of brightness temperature (T(B)) at 6.9, 10.7, and 18.7 GHz from Advanced Microwave Scanning Radiometer-Earth Observing System (AMSR-E) observations is investigated over five winter seasons (2002-2007) on Great Bear Lake and Great Slave Lake, Northwest Territories, Canada. The T(B) measurements are compared to ice thicknesses obtained with a previously validated thermodynamic lake ice model. Lake ice thickness is found to explain much of the increase of T(B) at 10.7 and 18.7 GHz. T(B) acquired at 18.7 GHz (V-pol) and 10.7 GHz (H-pol) shows the strongest relation with simulated lake ice thickness over the period of study (R**2 > 0.90). A comparison of the seasonal evolution of T(B) for a cold winter (2003-2004) and a warm winter (2005-2006) reveals that the relationship between T(B) and ice growth is stronger in the cold winter (2003-2004). Overall, this letter shows the high sensitivity of T(B) to ice growth and, thus, the potential of AMSR-E mid-frequency channels to estimate ice thickness on large northern lakes.
Project(s):
Coverage:
Median Latitude: 62.827100 * Median Longitude: -117.881733 * South-bound Latitude: 60.826700 * West-bound Longitude: -123.427400 * North-bound Latitude: 65.191600 * East-bound Longitude: -114.440200
Date/Time Start: 2002-01-01T00:00:00 * Date/Time End: 2007-01-01T00:00:00
Minimum Elevation: 160.0 m * Maximum Elevation: 206.0 m
Event(s):
Deline_MS * Latitude: 65.191600 * Longitude: -123.427400 * Elevation: 160.0 m * Location: Northwest Territories, Canada * Method/Device: Weather station/meteorological observation (WST)
Comment:
Data extracted in the frame of a joint ICSTI/PANGAEA IPY effort, see http://doi.pangaea.de/10.1594/PANGAEA.150150
Parameter(s):
| # | Name | Short Name | Unit | Principal Investigator | Method/Device | Comment |
|---|---|---|---|---|---|---|
| 1 | Event label | Event | ||||
| 2 | Latitude of event | Latitude | ||||
| 3 | Longitude of event | Longitude | ||||
| 4 | Area/locality | Area | Kang, Kyung-Kuk | |||
| 5 | DATE/TIME | Date/Time | Geocode | |||
| 6 | Temperature, coldest month | CMT | °C | Kang, Kyung-Kuk | january | |
| 7 | Temperature, warmest month | WMT | °C | Kang, Kyung-Kuk | july | |
| 8 | Accumulation of snow | Acc snow | cm | Kang, Kyung-Kuk | annual snowfall |
License:
Creative Commons Attribution 3.0 Unported (CC-BY-3.0)
Size:
72 data points