Absence of Surface Water Temperature Trends in Lake Kinneret despite Present Atmospheric Warming: Comparisons with Dead Sea Trends
| Autor: | Yury Lechinsky, Pinhas Alpert, Boris Starobinets, Pavel Kishcha |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2021 |
| Předmět: |
Dead sea
lake remote sensing Science Evaporation saline lakes Atmospheric sciences Water level dead sea On board lake kinneret Satellite data General Earth and Planetary Sciences Environmental science freshwater lakes Satellite Moderate-resolution imaging spectroradiometer Surface water lake surface water temperature water temperature trends |
| Zdroj: | Remote Sensing Volume 13 Issue 17 Remote Sensing, Vol 13, Iss 3461, p 3461 (2021) |
| ISSN: | 2072-4292 |
| DOI: | 10.3390/rs13173461 |
| Popis: | This study was carried out using Moderate Resolution Imaging Spectroradiometer (MODIS) 1 km × 1 km resolution records on board Terra and Aqua satellites and in-situ measurements during the period (2003–2019). In spite of the presence of increasing atmospheric warming, in summer when evaporation is maximal, in fresh-water Lake Kinneret, satellite data revealed the absence of surface water temperature (SWT) trends. The absence of SWT trends in the presence of increasing atmospheric warming is an indication of the influence of increasing evaporation on SWT trends. The increasing water cooling, due to the above-mentioned increasing evaporation, compensated for increasing heating of surface water by regional atmospheric warming, resulting in the absence of SWT trends. In contrast to fresh-water Lake Kinneret, in the hypersaline Dead Sea, located ~100 km apart, MODIS records showed an increasing trend of 0.8 °C decade−1 in summer SWT during the same study period. The presence of increasing SWT trends in the presence of increasing atmospheric warming is an indication of the absence of steadily increasing evaporation in the Dead Sea. This is supported by a constant drop in Dead Sea water level at the rate of ~1 m/year from year to year during the last 25-year period (1995–2020). In summer, in contrast to satellite measurements, in-situ measurements of near-surface water temperature in Lake Kinneret showed an increasing trend of 0.7 °C decade−1. |
| Databáze: | OpenAIRE |
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