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...
Guardado en:
Autores principales: | , , |
---|---|
Formato: | article |
Lenguaje: | EN |
Publicado: |
IWA Publishing
2021
|
Materias: | |
Acceso en línea: | https://doaj.org/article/e3f7797195e74aed965f096545862368 |
Etiquetas: |
Agregar Etiqueta
Sin Etiquetas, Sea el primero en etiquetar este registro!
|
id |
oai:doaj.org-article:e3f7797195e74aed965f096545862368 |
---|---|
record_format |
dspace |
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 |
_version_ |
1718416186460340224 |