Preliminary analysis of distributed in situ soil moisture measurements
| Autor: | M. Galli, Marco Stelluti, Luca Brocca |
|---|---|
| Přispěvatelé: | EGU, Publication |
| Jazyk: | angličtina |
| Rok vydání: | 2005 |
| Předmět: |
In situ
010504 meteorology & atmospheric sciences lcsh:Dynamic and structural geology Time-domain reflectometer 0207 environmental engineering Soil science 02 engineering and technology 01 natural sciences lcsh:QE500-639.5 Range (statistics) 020701 environmental engineering lcsh:Science Water content 0105 earth and related environmental sciences Remote sensing lcsh:QE1-996.5 Hyperspectral imaging Landslide General Medicine 15. Life on land lcsh:Geology Remote sensing (archaeology) Soil water [SDU.STU] Sciences of the Universe [physics]/Earth Sciences Environmental science lcsh:Q |
| Zdroj: | Advances in Geosciences, Vol 2, Pp 81-86 (2005) 2 (2005): 81–86. info:cnr-pdr/source/autori:Brocca L., Galli M., Stelluti M./titolo:Preliminary analysis of distributed in situ soil moisture measurements./doi:/rivista:/anno:2005/pagina_da:81/pagina_a:86/intervallo_pagine:81–86/volume:2 Scopus-Elsevier |
| ISSN: | 1680-7359 1680-7340 |
| Popis: | Surface soil moisture content is highly variable in both space and time. Remote sensing can provide an effective methodology for mapping surface moisture content over large areas but ground based measurements are required to test its reliability and to calibrate retrieval algorithms. Recently, we had the opportunity to design and perform an experiment aimed at jointly acquiring measurements of surface soil water content at various locations and remotely sensed hyperspectral data. The area selected for the experiment is located in central Umbria and it extends for 90km2. For the area, detailed lithological and multi-temporal landslide inventory maps were available. We identified eight plots where measurements of soil water content were made using a Time Domain Reflectometer (TDR). The plots range in size from 100m2 to 600m2, and cover a variety of topographic and morphological settings. The TDR measurements were conducted during four days, on 5 April, 15 April, 2 May and 3 May 2004. On 3 May the NERC airborne CASI 2 acquired the hyperspectral data. Preliminary analysis concerning the matching between the landslides and the soil moisture were reported. Statistical and geostatistical analysis investigating the spatial-temporal soil moisture distribution were performed. These results will be compared with the data of surface temperature obtained from the remotely sensed hyperspectral sensor. |
| Databáze: | OpenAIRE |
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