Assessing SMAP soil moisture scaling and retrieval in the Carman (Canada) study site
Assessing SMAP soil moisture scaling and retrieval in the Carman (Canada) study site
Simple item page
Full item details
- creativework.keywords - en
- Soil surveys
- Études pédologiques
- Sols--Humidité
- Soils--Remote sensing
- creativework.keywords - fr
- Soil moisture
- Sols--Télédétection
- dc.contributor.author
- Bhuiyan, Hassan A. K. M.
- McNairn, Heather
- Powers, Jarrett
- Friesen, Matthew
- Pacheco, Anna
- Jackson, Thomas J.
- Cosh, Michael H.
- Colliander, Andreas
- Berg, Aaron
- Rowlandson, Tracy
- Bullock, Paul
- Magagi, Ramata
- dc.date.accepted
- 2018-08-24
- dc.date.accessioned
- 2024-06-07T17:48:09Z
- dc.date.available
- 2024-06-07T17:48:09Z
- dc.date.issued
- 2018-12-20
- dc.date.submitted
- 2018-07-09
- dc.description.abstract - en
- In 2015, NASA launched the Soil Moisture Active Passive (SMAP) satellite. Data from this satellite are being exploited to improve forecasting of extreme weather events and delivery of disaster response. International core validation sites (CVSs) have been contributing in situ soil moisture data to validate and calibrate SMAP soil moisture products. Overall the soil moisture retrieval errors have exceeded SMAP’s mission requirement (errors below 0.04 m3 m−3), with the exception of some sites of annual cropland as present at the Carman (Canada) CVS. In 2016, a SMAP validation experiment was conducted at the Canadian site in Manitoba (SMAPVEX16-MB) in an attempt to understand the differences between the SMAP soil moisture retrievals and the permanent in situ network observations. The research presented here analyzed the performance of this network in representing soil moisture within a SMAP pixel and tested five upscaling approaches. Comparisons between the permanent network and SMAPVEX16-MB measurements (from temporary stations and field measures) confirmed agreement among these three sources of soil moisture measures. The SMAP soil moisture values were compared with in situ soil moisture upscaled from the four tested approaches as well as soil moisture estimated by the NOAH Land Surface Model (LSM). There were similar discrepancies when analyzing all methods (RMSE 0.072–0.074 m3 m−3 for the four upscaling methods; 0.076 m3 m−3 for the LSM approach), yielding no reduction in the soil moisture RMSE for this site. The SMAP team will continue to investigate other factors that may be contributing to errors above 0.04 m3 m−3 at these annually cropped CVSs.
- dc.identifier.citation
- Bhuiyan, H. A. K. M., McNairn, H., Powers, J., Friesen, M., Pacheco, A., Jackson, T. J., Cosh, M. H., Colliander, A., Berg, A., Rowlandson, T., Bullock, P., & Magagi, R. (2018). Assessing SMAP soil moisture scaling and retrieval in the Carman (Canada) study site. Vadose Zone Journal, 17(1), Article 180132. https://doi.org/10.2136/vzj2018.07.0132
- dc.identifier.doi
- https://doi.org/10.2136/vzj2018.07.0132
- dc.identifier.issn
- 1539-1663
- dc.identifier.uri
- https://open-science.canada.ca/handle/123456789/2569
- dc.language.iso
- en
- dc.publisher
- Soil Science Society of America
- dc.rights - en
- Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International (CC BY-NC-ND 4.0)
- dc.rights - fr
- Creative Commons Attribution - Pas d'utilisation commerciale - Pas de modification 4.0 International (CC BY-NC-ND 4.0)
- dc.rights.openaccesslevel - en
- Gold
- dc.rights.openaccesslevel - fr
- Or
- dc.rights.uri - en
- https://creativecommons.org/licenses/by-nc-nd/4.0/
- dc.rights.uri - fr
- https://creativecommons.org/licenses/by-nc-nd/4.0/deed.fr
- dc.subject - en
- Nature and environment
- Agriculture
- dc.subject - fr
- Nature et environnement
- Agriculture
- dc.subject.en - en
- Nature and environment
- Agriculture
- dc.subject.fr - fr
- Nature et environnement
- Agriculture
- dc.title - en
- Assessing SMAP soil moisture scaling and retrieval in the Carman (Canada) study site
- dc.type - en
- Article
- dc.type - fr
- Article
- local.acceptedmanuscript.articlenum
- 180132
- local.article.journalissue
- 1
- local.article.journaltitle
- Vadose Zone Journal
- local.article.journalvolume
- 17
- local.pagination
- 1-14
- local.peerreview - en
- Yes
- local.peerreview - fr
- Oui
- local.requestdoi
- No
Download(s)
Original bundle
1 - 1 of 1
Name: AssessingSMAPSoilMoistureScalingAndRetrievalInTheCarmanCanadaStudySite_2018.pdf
Size: 1.3 MB
Format: PDF
Collection(s)