Absence of surface water temperature trends in lake kinneret despite present atmospheric warming: Comparisons with dead sea trends

Pavel Kishcha, Boris Starobinets, Yury Lechinsky, Pinhas Alpert

Research output: Contribution to journalArticlepeer-review

Abstract

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 0.8C 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 0.7C decade−1 .

Original languageEnglish
Article number3461
JournalRemote Sensing
Volume13
Issue number17
DOIs
StatePublished - 1 Sep 2021

Keywords

  • Dead sea
  • Freshwater lakes
  • Lake kinneret
  • Lake remote sensing
  • Lake surface water temperature
  • Saline lakes
  • Water temperature trends

Fingerprint

Dive into the research topics of 'Absence of surface water temperature trends in lake kinneret despite present atmospheric warming: Comparisons with dead sea trends'. Together they form a unique fingerprint.

Cite this