| Autor: |
L. M. Kolos, Ya. Zyelyk, L. V. Pidgorodetska, O. Fedorov |
| Rok vydání: |
2021 |
| Předmět: |
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| Zdroj: |
Geoinformatics. |
| DOI: |
10.3997/2214-4609.20215521114 |
| Popis: |
Summary The surface soil moisture deficit assessment method is proposed, which differs from the existing ones in that it is based not on the simplified model of the daily water balance according to meteorological data and empirical relationships, but on direct calculation of the difference between soil water content at field capacity and actual soil moisture content calculated according to satellite data. The method advantage is the possibility of its implementation on the continental scale with acceptable 250 m and 1 km spatial resolution and daily temporal resolution based on data from open sources. The limitation of the proposed approach is that it can be applied only for relatively small depth of the soil surface layer of 5 cm due to the use of satellite radar data. The method was implemented in the free cross-platform geographic information system QGIS for the part of Kyiv and Zhytomyr regions territory using data products of 3D Soil Hydraulic Database of Europe provided by ESDAC and Surface Soil Moisture (SSM) satellite data products from Copernicus Global Land Service. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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