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Impact of satellite-based lake surface observations on the initial state of HIRLAM. Part I: evaluation of remotely-sensed lake surface water temperature observations Cover

Impact of satellite-based lake surface observations on the initial state of HIRLAM. Part I: evaluation of remotely-sensed lake surface water temperature observations

Tellus
Volume 66 (2014): Issue 1
By: ,  ,   and    
Open Access
|Dec 2014
Figures & tables

Figures & Tables

Fig. 1

Location of lakes within the HIRLAM domain over Northern Europe and selected lakes (dark blue) from SYKE's in-situ measurement sites in Finland.

Table 1. List of 22 selected Finnish lakes with coordinates, mean depth and statistics of the evaluation results for MODIS

Lake Name (Finnish name)Longitude (Decimal Degree, WGS84)Latitude (Decimal Degree, WGS84) Mean depth (m) MBE (°C) RMSE (°C)n
1Hauki (Haukivesi)14.75256.63710−1.152.085192Inari27.92469.08214−1.872.312443Jaasj (Jääsjärvi)26.13561.63110−1.642.124124Kalla (Kallavesi)27.78262.76110−0.472.144075Kilpi (Kilpisjärvi)20.81569.00622−0.672.132976Konne (Konnevesi)26.60462.63210−1.241.983827Kyyve (Kyyvesi)27.07961.99810−1.142.164928Lange (Längelmävesi)24.37061.53510−1.422.273499Lappa (Lappajärvi)23.67063.14710−1.242.2046310Nasij (Näsijärvi)23.75061.63110−1.312.1342811Nilak (Nilakka)26.52663.11410−0.962.0628612Ouluj (Oulujärvi)26.96564.45010−1.332.0236113Paaj1 (Pääjärvi1)24.78962.8633−1.272.2540114Paaj2 (Pääjärvi2)25.04761.05215−1.022.0750215Paija (Päijänne)25.48261.61310−1.842.3532216Pesio (Pesiöjärvi)28.65064.9457−1.102.2032217Pieli (Pielinen)29.60663.27010−0.952.3936718Pyhaj (Pyhäjärvi)22.29161.0015−0.792.0442019Rehja (Rehja-Nuasjärvi)28.01664.18410−1.582.2432420Saima (Saimaa)28.11561.33710−0.782.1246821Tuusu (Tuusulanjärvi)25.05460.4413−0.252.1938522Unari25.71167.17210−0.922.28184Average−1.132.178135

[i] MBE: mean bias error, RMSE: root mean square error, n: number of observations.

Fig. 2

Map showing combined MODIS-Aqua/Terra LSWT of Lake Päijänne (August 19, 2010) and the location of MODIS and SYKE observations used for comparison.

Fig. 3

Time-series of MODIS-Aqua/Terra LSWT versus SYKE at Lake Päijänne during open-water season (2007–2011).

Fig. 4

Scatter plot of MODIS-Aqua/Terra LSWT in comparison with SYKE water temperature data for all 22 Finish lakes during (2007–2011).

Fig. 5

Scatter plot of MODIS-Aqua/Terra (a), AATSR-L2 LSWT in comparison with SYKE water temperature data (b) for 11 Finish lakes during open-water period (2007–2009).

Fig. 6

Comparison between AATSR-derived LSWT (AATSR-L2, AATSR-L2-NCC and AATSR-L2-PR products; see text for details) and SYKE in-situ water temperature measurements for nine lakes during open-water season (August 2009).

DOI: https://doi.org/10.3402/tellusa.v66.21534 | Journal eISSN: 3035-9554
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Language: English
Page range: 21534 - 21534
Submitted on: May 24, 2013
Accepted on: Apr 23, 2014
Published on: Dec 1, 2014
Published by: Stockholm University Press
In partnership with: Paradigm Publishing Services
Keywords:
lake surface water temperature,
satellite observations,
MODIS,
AATSR,
HIRLAM

© 2014 Homa Kheyrollah Pour, Claude R. Duguay, Rune Solberg, Øystein Rudjord, published by Stockholm University Press
This work is licensed under the Creative Commons Attribution 4.0 License.

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