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Estimating soil moisture using portable Cosmic-Ray neutron sensor, field data and remote sensing methodologies: Spatial and temporal comparison

AuthorsGaspar Ferrer, Leticia ; Franz, Trenton E.; Mabit, Lionel; Lizaga Villuendas, Iván ; Navas Izquierdo, Ana
Issue DateApr-2019
PublisherEuropean Geosciences Union
CitationEGU General Assembly (Vienna, Austria. 7–12 April 2019)
Geophysical Research Abstracts 21: EGU2019-16905 (2019)
AbstractAccurate information of spatial and temporal variation of soil moisture is crucial for understanding the land surface processes and their management. Antecedent soil moisture can be one of the most important factors controlling hydrological and erosive processes, affecting the runoff and soil loss in agroforestry systems. In situ field measurements of soil moisture are restricted to discrete data at specific locations. However, to avoid spatial and temporal variations and obtain a valid estimate of soil moisture one needs to collect data from numerous locations within a given area, becoming time-consuming and expensive. In the last years, development in remote sensing satellite technology has offered a number of techniques for estimating soil moisture across a wide area continuously over time offering an edge over the conventional data collection methods. However, the measurement depth of many of these methods is still limited to the upper soil and the spatial and temporal resolution is rather coarse. Recently, a technique that intends to bridge the scale gap between point measurements of soil moisture and remote sensing is the use of Cosmic-Ray neutron sensors (CRNS) as indicators of soil moisture. This research details the preliminary results and efforts to apply for the first time in Spain the use of portable CRNS.
Description1 .pdf copy (1 Pag.) of the abstract published by the Organization. © Author(s) 2019. CC Attribution 4.0 license.
Appears in Collections:(EEAD) Comunicaciones congresos
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