Comparison of InSAR atmospheric phase screen correction with Global Atmospheric Models (GAM)

Autor: Hu, Zheng, Mallorquí Franquet, Jordi Joan|||0000-0002-9424-1889
Přispěvatelé: Universitat Politècnica de Catalunya. Departament de Teoria del Senyal i Comunicacions, Universitat Politècnica de Catalunya. RSLAB - Grup de Recerca en Teledetecció
Jazyk: angličtina
Rok vydání: 2018
Předmět:
Zdroj: Recercat. Dipósit de la Recerca de Catalunya
instname
UPCommons. Portal del coneixement obert de la UPC
Universitat Politècnica de Catalunya (UPC)
Popis: Variations of atmospheric conditions cause Atmospheric Phase Screen (APS) in Interferometric Synthetic Aperture Radar (InSAR), which affects accuracy and reliability of its applications. Recent studies reveal that empirical models, auxiliary data (GPS, MERIS, etc.) and atmospheric models can mitigate tropospheric delays in some case studies. The method of using GAM is considered the state of the art and an ongoing evolving technique. As the resolution and accuracy of GAM products are improved significantly, using these products to correct tropospheric delays is promising. Here we explore the performance of three different GAM datasets on correcting Sentinel-1 interferograms in a mountainous and coastal area of Tenerife island, Spain. © VDE VERLAG GMBH  Berlin  Offenbach.
Databáze: OpenAIRE