Interviews with Experts
Rowena Lohman
Rowena Lohman, Assistant Professor, Department of Earth and Atmospheric Sciences, College of Engineering, Cornell University
ASF User Working Group
Image of Salinas, interferogram Sentinel-1 California showing different crops in Central Valley.
Brian Conway
Arizona Department of Water Resources
ASF User Working Group
This image is a time series interferometric analysis of land subsidence in southeastern Arizona and was created from Sentinel-1 SLC images acquired from 2017-2024. Just to the right of center is the Elfrida land subsidence feature, revealed in tight color fringes representing a total of 63 cm subsidence occurring over seven years. The Elfrida feature is one of four in SE Arizona, resulting from over half a century of groundwater pumping and overdraft. Time series InSAR is a very powerful technique for observing long-term landscape changes.
Credit: Copernicus Sentinel data 2017-24; courtesy Brian Conway, Arizona Dept. Water Resources
Laura Bourgeau-Chavez
TITLE
ASF User Working Group
Tropical mountain peatland map based on multidate, multisensor Landsat, PALSAR, Radarsat-1, and TPI (Overall accuracy 90%) showing distribution of three peatland types (cushion, grass, and sedge) within the 5500 km2 study region. Mapping area below 3500 masl is grayed out. Upper left inset is a high resolution image of a 56 km2 section of the mapping area displaying the ability of the multiple sensor approach to delineate individual small peatlands [Colour figure can be viewed at wileyonlinelibrary.com]
