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SMAP-HydroBlocks, a 30-m satellite-based soil moisture dataset for the conterminous US.

Publication ,  Journal Article
Vergopolan, N; Chaney, NW; Pan, M; Sheffield, J; Beck, HE; Ferguson, CR; Torres-Rojas, L; Sadri, S; Wood, EF
Published in: Scientific data
October 2021

Soil moisture plays a key role in controlling land-atmosphere interactions, with implications for water resources, agriculture, climate, and ecosystem dynamics. Although soil moisture varies strongly across the landscape, current monitoring capabilities are limited to coarse-scale satellite retrievals and a few regional in-situ networks. Here, we introduce SMAP-HydroBlocks (SMAP-HB), a high-resolution satellite-based surface soil moisture dataset at an unprecedented 30-m resolution (2015-2019) across the conterminous United States. SMAP-HB was produced by using a scalable cluster-based merging scheme that combines high-resolution land surface modeling, radiative transfer modeling, machine learning, SMAP satellite microwave data, and in-situ observations. We evaluated the resulting dataset over 1,192 observational sites. SMAP-HB performed substantially better than the current state-of-the-art SMAP products, showing a median temporal correlation of 0.73 ± 0.13 and a median Kling-Gupta Efficiency of 0.52 ± 0.20. The largest benefit of SMAP-HB is, however, the high spatial detail and improved representation of the soil moisture spatial variability and spatial accuracy with respect to SMAP products. The SMAP-HB dataset is available via zenodo and at https://waterai.earth/smaphb .

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Published In

Scientific data

DOI

EISSN

2052-4463

ISSN

2052-4463

Publication Date

October 2021

Volume

8

Issue

1

Start / End Page

264
 

Citation

APA
Chicago
ICMJE
MLA
NLM
Vergopolan, N., Chaney, N. W., Pan, M., Sheffield, J., Beck, H. E., Ferguson, C. R., … Wood, E. F. (2021). SMAP-HydroBlocks, a 30-m satellite-based soil moisture dataset for the conterminous US. Scientific Data, 8(1), 264. https://doi.org/10.1038/s41597-021-01050-2
Vergopolan, Noemi, Nathaniel W. Chaney, Ming Pan, Justin Sheffield, Hylke E. Beck, Craig R. Ferguson, Laura Torres-Rojas, Sara Sadri, and Eric F. Wood. “SMAP-HydroBlocks, a 30-m satellite-based soil moisture dataset for the conterminous US.Scientific Data 8, no. 1 (October 2021): 264. https://doi.org/10.1038/s41597-021-01050-2.
Vergopolan N, Chaney NW, Pan M, Sheffield J, Beck HE, Ferguson CR, et al. SMAP-HydroBlocks, a 30-m satellite-based soil moisture dataset for the conterminous US. Scientific data. 2021 Oct;8(1):264.
Vergopolan, Noemi, et al. “SMAP-HydroBlocks, a 30-m satellite-based soil moisture dataset for the conterminous US.Scientific Data, vol. 8, no. 1, Oct. 2021, p. 264. Epmc, doi:10.1038/s41597-021-01050-2.
Vergopolan N, Chaney NW, Pan M, Sheffield J, Beck HE, Ferguson CR, Torres-Rojas L, Sadri S, Wood EF. SMAP-HydroBlocks, a 30-m satellite-based soil moisture dataset for the conterminous US. Scientific data. 2021 Oct;8(1):264.

Published In

Scientific data

DOI

EISSN

2052-4463

ISSN

2052-4463

Publication Date

October 2021

Volume

8

Issue

1

Start / End Page

264