An empirical vegetation correction for soil water content quantification using cosmic ray probes
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| Title: | Main Title: An empirical vegetation correction for soil water content quantification using cosmic ray probes |
| Description: | Abstract: Cosmic ray probes are an emerging technology to continuously monitor soil water content at a scale significant to land surface processes. However, the application of this method is hampered by its susceptibility to the presence of aboveground biomass. Here we present a simple empirical framework to account for moderation of fast neutrons by aboveground biomass in the calibration. The method extends the N0-calibration function and was developed using an extensive data set from a network of 10 cosmic ray probes located in the Rur catchment, Germany. The results suggest a 0.9% reduction in fast neutron intensity per 1 kg of dry aboveground biomass per m2 or per 2 kg of biomass water equivalent per m2. We successfully tested the novel vegetation correction using temporary cosmic ray probe measurements along a strong gradient in biomass due to deforestation, and using the COSMIC, and the hmf method as independent soil water content retrieval algorithms. The extended N0-calibration function was able to explain 95% of the overall variability in fast neutron intensity. |
| Identifier: | 10.1002/2014WR016443 (DOI) |
| Citation Advice: | Baatz, R., H. R. Bogena, H. J. H. Franssen, J. A. Huisman, C. Montzka, and H. Vereecken (2015), An empirical vegetation correction for soil water content quantification using cosmic ray probes, Water Resour Res, 51(4), 2030-2046. |
Responsible Party
| Creators: | Roland Baatz (Author), Heye Bogena (Author), Harrie-Jan Hendricks-Franssen (Author), Johan A. Huisman (Author), Carsten Montzka (Author), Harry Vereecken (Author) |
| Publisher: | AGU Publications |
| Publication Year: | 2016 |
Topic
| TR32 Topic: | Soil |
| Related Subproject: | C6 |
| Subject: | Keyword: Cosmic Radiation |
| Geogr. Information Topic: | Environment |
File Details
| Filename: | Baatz2015_wrcr21372.pdf |
| Data Type: | Text - Article |
| File Size: | 1.2 MB |
| Date: | Accepted: 24.02.2015 |
| Mime Type: | application/pdf |
| Data Format: | PDF (final) |
| Language: | English |
| Status: | Completed |
Constraints
| Download Permission: | Free |
| Download Information: | Open source |
| General Access and Use Conditions: | According to the TR32DB data policy agreement. |
| Access Limitations: | According to the TR32DB data policy agreement. |
| Licence: | [TR32DB] Data policy agreement |
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Specific Information - Publication
| Publication Status: | Accepted |
| Review Status: | Peer reviewed |
| Publication Type: | Article |
| Article Type: | Journal |
| Source: | Water resources research |
| Number of Pages: | 17 (2030 - 2046) |
Metadata Details
| Metadata Creator: | Roland Baatz |
| Metadata Created: | 18.05.2016 |
| Metadata Last Updated: | 18.05.2016 |
| Subproject: | C6 |
| Funding Phase: | 2 |
| Metadata Language: | English |
| Metadata Version: | V50 |
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| Metadata Downloads: | 0 |
| Dataset Downloads: | 3 |
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