Soil moisture data using citizen science technology cross-validated by satellite data

Soil moisture represents many attributes of the geo-hydrological cycle and the climate system. Citizen science through social media as an emerging tool could be utilized to collect soil moisture data. A pilot study area was selected in Shahriar, Iran. A user interface and a sampling process (use of...

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Autores principales: Mohammad Karamouz, Elham Ebrahimi, Arash Ghomlaghi
Formato: article
Lenguaje:EN
Publicado: IWA Publishing 2021
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spelling oai:doaj.org-article:e3f7797195e74aed965f0965458623682021-11-23T18:48:39ZSoil moisture data using citizen science technology cross-validated by satellite data1464-71411465-173410.2166/hydro.2021.029https://doaj.org/article/e3f7797195e74aed965f0965458623682021-11-01T00:00:00Zhttp://jh.iwaponline.com/content/23/6/1224https://doaj.org/toc/1464-7141https://doaj.org/toc/1465-1734Soil moisture represents many attributes of the geo-hydrological cycle and the climate system. Citizen science through social media as an emerging tool could be utilized to collect soil moisture data. A pilot study area was selected in Shahriar, Iran. A user interface and a sampling process (use of citizen science by subscribers) were designed to analyze the subjective and gravimetric soil moisture data. Furthermore, explanatory moisture condition (EMC), a new initiative to consider land use in soil moisture information from vegetation cover, was evaluated. A statistical artificial neural network was used for quantifying subjective data, and soil moisture layouts were produced by utilizing the ordinary kriging (OK) method. For cross-validating, the land surface temperature data from the MODIS satellite were retrieved. A platform for the region with 200 m grids resolution to collect daily soil moisture at eight ungauged stations is proposed to utilize subjective data from the subscribers and cross-validated with satellite data. A virtual station at the centroid of the pervious part of the study area was selected as a reference station for data collection daily or weekly to generate soil moisture time series. The results showed a high potential of utilizing satellite and citizen science data for real-time estimation of scarce soil moisture data in developing regions. HIGHLIGHTS Design of a platform for real-time data estimation of SM in virtual station(s) using color contrast image processing with simple user interface for retrieving SM data through social media.; Cross-validation and error analysis with daily downscaled satellite SM data provides a unique opportunity for SM estimation in the developing regions with no national or regional plan to collect time series of this data.;Mohammad KaramouzElham EbrahimiArash GhomlaghiIWA Publishingarticlecitizen sciencedata-driven modelingimage processingkriging methodsoil moistureInformation technologyT58.5-58.64Environmental technology. Sanitary engineeringTD1-1066ENJournal of Hydroinformatics, Vol 23, Iss 6, Pp 1224-1246 (2021)
institution DOAJ
collection DOAJ
language EN
topic citizen science
data-driven modeling
image processing
kriging method
soil moisture
Information technology
T58.5-58.64
Environmental technology. Sanitary engineering
TD1-1066
spellingShingle citizen science
data-driven modeling
image processing
kriging method
soil moisture
Information technology
T58.5-58.64
Environmental technology. Sanitary engineering
TD1-1066
Mohammad Karamouz
Elham Ebrahimi
Arash Ghomlaghi
Soil moisture data using citizen science technology cross-validated by satellite data
description Soil moisture represents many attributes of the geo-hydrological cycle and the climate system. Citizen science through social media as an emerging tool could be utilized to collect soil moisture data. A pilot study area was selected in Shahriar, Iran. A user interface and a sampling process (use of citizen science by subscribers) were designed to analyze the subjective and gravimetric soil moisture data. Furthermore, explanatory moisture condition (EMC), a new initiative to consider land use in soil moisture information from vegetation cover, was evaluated. A statistical artificial neural network was used for quantifying subjective data, and soil moisture layouts were produced by utilizing the ordinary kriging (OK) method. For cross-validating, the land surface temperature data from the MODIS satellite were retrieved. A platform for the region with 200 m grids resolution to collect daily soil moisture at eight ungauged stations is proposed to utilize subjective data from the subscribers and cross-validated with satellite data. A virtual station at the centroid of the pervious part of the study area was selected as a reference station for data collection daily or weekly to generate soil moisture time series. The results showed a high potential of utilizing satellite and citizen science data for real-time estimation of scarce soil moisture data in developing regions. HIGHLIGHTS Design of a platform for real-time data estimation of SM in virtual station(s) using color contrast image processing with simple user interface for retrieving SM data through social media.; Cross-validation and error analysis with daily downscaled satellite SM data provides a unique opportunity for SM estimation in the developing regions with no national or regional plan to collect time series of this data.;
format article
author Mohammad Karamouz
Elham Ebrahimi
Arash Ghomlaghi
author_facet Mohammad Karamouz
Elham Ebrahimi
Arash Ghomlaghi
author_sort Mohammad Karamouz
title Soil moisture data using citizen science technology cross-validated by satellite data
title_short Soil moisture data using citizen science technology cross-validated by satellite data
title_full Soil moisture data using citizen science technology cross-validated by satellite data
title_fullStr Soil moisture data using citizen science technology cross-validated by satellite data
title_full_unstemmed Soil moisture data using citizen science technology cross-validated by satellite data
title_sort soil moisture data using citizen science technology cross-validated by satellite data
publisher IWA Publishing
publishDate 2021
url https://doaj.org/article/e3f7797195e74aed965f096545862368
work_keys_str_mv AT mohammadkaramouz soilmoisturedatausingcitizensciencetechnologycrossvalidatedbysatellitedata
AT elhamebrahimi soilmoisturedatausingcitizensciencetechnologycrossvalidatedbysatellitedata
AT arashghomlaghi soilmoisturedatausingcitizensciencetechnologycrossvalidatedbysatellitedata
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