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Multi-scale thermal pattern monitoring of a large lake (Lake Geneva) using a multi-sensor approach

Contributors

Oesch, David; Jaquet, Jean-Michel; Klaus, Raphaël; Schenker, Patricia

Published in

International journal of remote sensing, vol. 29, no. 20, p. 5785-5808

Publication date

2008

Abstract

The applicability of satellite imagery products from different sensors (AVHRRderived multi-channel sea surface temperature (MCSST), MODIS sea surface temperature (SST) products 5-Min L2 Swath 1 km and Landsat TM band 6 thermal signature) for the comprehensive monitoring of temperature and its temporal patterns over a large lake is tested in this study. The coverage of cloudfree satellite data for Lake Geneva is reported throughout a year and, more specifically, during a 13 day period in summer 2003. In a second step, we demonstrate the feasibility of the AVHRR/MODIS imagery to discern day and night temperature patterns, by generating day and night climatologies and various spatial statistics over the 13 day period. The different day and night surface thermal patterns observed by satellite imagery could be linked to the thermal structure existing in deeper water using the concept of the diurnal decoupled layer. The forcing of the persistent patterns, two warm cores divided by a saddle-shaped cold anomaly, is explained by wind periodicity and insolation conditions. The patterns can be matched to features postulated by findings of different limnologists in the past. Other surface temperature related phenomena such as water upwelling and downwelling and the occurrence of plumes are related to meteorological and hydrological events. The lakewide average lake surface water temperature (LSWT) trends for day and night during the study period are roughly parallel. A sudden loss of stored heat can be explained by episodes of long fetch, synoptic wind (bise) that interrupted the predominant breeze regime.

Keywords

  • Limnology
  • Remote sensing
  • Léman
  • MODIS/AVHRR
  • SST
  • Temperature monitoring

UNIGE affiliation entities

Citation (ISO format)

OESCH, David et al. Multi-scale thermal pattern monitoring of a large lake (Lake Geneva) using a multi-sensor approach. In: International journal of remote sensing, 2008, vol. 29, n° 20, p. 5785–5808. doi: 10.1080/01431160802132786

Main files (1)

Article (Accepted version)

Identifiers

Additional URL for this publication

http://www.informaworld.com/smpp/content~content=a795458920~db=all~order=page

Journal ISSN

0143-1161
761views
461downloads

Technical informations

Creation

23/04/2009 10:16:00

First validation

23/04/2009 10:16:00

Update

30/03/2023 09:40:00

Status update

30/03/2023 09:40:00

Last indexation

29/10/2024 11:29:40
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