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Earth Observation-Based Operational Estimation of Soil Moisture and Evapotranspiration for Agricultural Crops in Support of Sustainable Water Management

1
Department of Geography and Earth Sciences, University of Aberystwyth, Wales SY23 2DB, UK
2
School of Mineral Resources Engineering, Technical University of Crete, 73100 Chania, Greece
3
Institute of Environment and Sustainable Development, Banaras Hindu University, Varanasi 221005, India
4
Image Processing Lab (IPL), Universitat de València, 46980 València, Spain
5
Lincoln Institute for Agri-Food Technology, The University of Lincoln, Lincoln LN6 7TS, UK
*
Author to whom correspondence should be addressed.
Sustainability 2018, 10(1), 181; https://doi.org/10.3390/su10010181
Received: 28 November 2017 / Revised: 22 December 2017 / Accepted: 28 December 2017 / Published: 12 January 2018
Global information on the spatio-temporal variation of parameters driving the Earth’s terrestrial water and energy cycles, such as evapotranspiration (ET) rates and surface soil moisture (SSM), is of key significance. The water and energy cycles underpin global food and water security and need to be fully understood as the climate changes. In the last few decades, Earth Observation (EO) technology has played an increasingly important role in determining both ET and SSM. This paper reviews the state of the art in the use specifically of operational EO of both ET and SSM estimates. We discuss the key technical and operational considerations to derive accurate estimates of those parameters from space. The review suggests significant progress has been made in the recent years in retrieving ET and SSM operationally; yet, further work is required to optimize parameter accuracy and to improve the operational capability of services developed using EO data. Emerging applications on which ET/SSM operational products may be included in the context specifically in relation to agriculture are also highlighted; the operational use of those operational products in such applications remains to be seen. View Full-Text
Keywords: soil surface moisture; evapotranspiration; operational products; emerging applications; agriculture soil surface moisture; evapotranspiration; operational products; emerging applications; agriculture
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MDPI and ACS Style

Petropoulos, G.P.; Srivastava, P.K.; Piles, M.; Pearson, S. Earth Observation-Based Operational Estimation of Soil Moisture and Evapotranspiration for Agricultural Crops in Support of Sustainable Water Management. Sustainability 2018, 10, 181. https://doi.org/10.3390/su10010181

AMA Style

Petropoulos GP, Srivastava PK, Piles M, Pearson S. Earth Observation-Based Operational Estimation of Soil Moisture and Evapotranspiration for Agricultural Crops in Support of Sustainable Water Management. Sustainability. 2018; 10(1):181. https://doi.org/10.3390/su10010181

Chicago/Turabian Style

Petropoulos, George P.; Srivastava, Prashant K.; Piles, Maria; Pearson, Simon. 2018. "Earth Observation-Based Operational Estimation of Soil Moisture and Evapotranspiration for Agricultural Crops in Support of Sustainable Water Management" Sustainability 10, no. 1: 181. https://doi.org/10.3390/su10010181

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