Monitoring Spatiotemporal Variation of Lake Urmia Surface Albedo Using MODIS Satellite Data

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DARZI A.; SIMA S.

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Journal Paper

Paper Information

Journal: IRAN-WATER RESOURCES RESEARCH Year:2021 | Volume:17 | Issue:2 Page(s): 190-203

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Information Journal Paper

Title

Monitoring Spatiotemporal Variation of Lake Urmia Surface Albedo Using MODIS Satellite Data

Author(s)

DARZI A. | SIMA S. | Issue Writer Certificate

Keywords

Shortwave Radiation

Saline Lakes

Water Level

Validation

Abstract

Albedo is one of the important factors affecting the energy balance of lakes. This study investigates the spatiotemporal variation of shortwave albedo over the entire boundary of Lake Urmia. For this purpose, first, the boundaries of the lake water body, salt flats, and bare lands have been extracted. Secondly, monthly time series of shortwave albedo have been analyzed using the MODIS albedo product (MCD43A3). The Validation results showed that MODIS data underestimates the lake surface albedo. Moreover, along with the significant lake level drop from 2008 to 2017 (compared to the previous decade), the surface albedo of Lake Urmia has extremely increased (up to 150%). This, in turn, can lead to a decrease in surface temperature, evaporation, and thermal storage capacity of the lake and impair its function in regulating the micro-climate of its surrounding region. Despite an increase in the bare land and salt flat areas, albedo of these surfaces have remained pretty constant and no trend has been observed during the study period. Results of this study indicated the inefficiency of the MODIS albedo data (MCD43A3 v. 6) in monitoring Lake Urmia albedo. Findings can also provide insights into the performance improvement of the next version of MODIS albedo products, particularly over Saline Lakes.

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APA: Copy

DARZI, A., & SIMA, S.. (2021). Monitoring Spatiotemporal Variation of Lake Urmia Surface Albedo Using MODIS Satellite Data. IRAN-WATER RESOURCES RESEARCH, 17(2 ), 190-203. SID. https://sid.ir/paper/958503/en

Vancouver: Copy

DARZI A., SIMA S.. Monitoring Spatiotemporal Variation of Lake Urmia Surface Albedo Using MODIS Satellite Data. IRAN-WATER RESOURCES RESEARCH[Internet]. 2021;17(2 ):190-203. Available from: https://sid.ir/paper/958503/en

IEEE: Copy

A. DARZI, and S. SIMA, “Monitoring Spatiotemporal Variation of Lake Urmia Surface Albedo Using MODIS Satellite Data,” IRAN-WATER RESOURCES RESEARCH, vol. 17, no. 2 , pp. 190–203, 2021, [Online]. Available: https://sid.ir/paper/958503/en

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