مورد إلكتروني
Can we measure vegetation water content and vegetation opacity at L-band with a single GPS receiver?
| العنوان: | Can we measure vegetation water content and vegetation opacity at L-band with a single GPS receiver? |
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| بيانات النشر: | Institute of Electrical and Electronics Engineers (IEEE) 2016 |
| تفاصيل مُضافة: | Universitat Politècnica de Catalunya. Departament de Teoria del Senyal i Comunicacions Universitat Politècnica de Catalunya. CTE-CRAE - Grup de Recerca en Ciències i Tecnologies de l'Espai Universitat Politècnica de Catalunya. RSLAB - Grup de Recerca en Teledetecció Alonso Arroyo, Alberto Querol Borràs, Jorge Camps Carmona, Adriano José Onrubia Ibáñez, Raúl Hyuk, Park Pascual Biosca, Daniel |
| نوع الوثيقة: | Electronic Resource |
| مستخلص: | This work shows a technique to estimate the vegetation opacity and infer the vegetation water content using a single GPS receiver located under the vegetation layer being analyzed. It is based on the measurement of the received signal power when the GPS satellite is at the zenith, and when the GPS satellite is with an elevation of 30 degrees. Assuming a horizontally stratified vegetation layer, the attenuation on the GPS signal due to vegetation doubles at 30° elevation angle compared to the zenith. This attenuation is directly related to the vegetation opacity. Then, the vegetation opacity is related to the vegetation water content by a linear parameter. Initial results relating the measured GPS signal power to canopy parameters obtained from hemispheric photos are shown. Peer Reviewed Postprint (published version) |
| مصطلحات الفهرس: | Àrees temàtiques de la UPC::Enginyeria de la telecomunicació::Radiocomunicació i exploració electromagnètica, Global Positioning System, Remote sensing, Vegetation mapping, Indexes, Receivers, Satellites, Vegetation, Attenuation, Vegetation opacity, Vegetation remote sensing, GNSS-T, GNSS, GNSS (Sistema de navegació), Sistema de posicionament global, Teledetecció, Cartografia de la vegetació, Conference report |
| URL: | |
| الإتاحة: | Open access content. Open access content Restricted access - publisher's policy |
| ملاحظة: | 4 p. application/pdf English |
| أرقام أخرى: | HGF oai:upcommons.upc.edu:2117/102040 Alonso-Arroyo, A., Querol, J., Camps, A., Onrubia, R., Park, H., Pascual, D. Can we measure vegetation water content and vegetation opacity at L-band with a single GPS receiver?. A: IEEE International Geoscience and Remote Sensing Symposium. "2016 IEEE International Geoscience & Remote Sensing Symposium: proceedings: July 10-15, 2016: Beijing, China". Beijing: Institute of Electrical and Electronics Engineers (IEEE), 2016, p. 1985-1988. 9781509022342 10.1109/IGARSS.2016.7729512 978331504 |
| المصدر المساهم: | UNIV POLITECNICA DE CATALUNYA From OAIster®, provided by the OCLC Cooperative. |
| رقم الأكسشن: | edsoai.ocn978331504 |
| قاعدة البيانات: | OAIster |
| الوصف غير متاح. |