Results 41 to 50 of about 690 (131)

Assessing Mountain Soil Water Storage and Release in a Colombian Páramo With APSIS‐InSAR Data

Hydrological Processes, Volume 39, Issue 7, July 2025.
InSAR detects seasonal soil swelling across a páramo ridge. Ridges swell during the wet season and lower valleys swell in the dry season. Findings indicate flow in the wet season is rapid from ridges through steep slopes and out of the catchment, whereas in the dry season lower valley sediments swell from a cumulative slower flow.
Andrew V. Bradley, David J. Large, Jeffrey Mauricio Prieto Naranjo, Wouter Buytaert, Emily Mitchell, Andrew Sowter, Mauricio Diazgranados, Boris Ochoa‐Tocachi, Charles George, France F. Gerard   +9 more
wiley   +1 more source

Biomass estimation as a function of vertical forest structure and forest height. Potential and limiations for remote sensing (radar and LiDAR) [PDF]

, 2011
Forest biomass stock, spatial distribution and dynamics are unknown parameters for many regions of the world. Today’s information is largely based on ground measurements on a plot basis without coverage in many remote regions that are fundamental for the
Hajnsek, Irena, Kugler, Florian, Papathanassiou, Kostas, Toraño Caicoya, Astor   +3 more
core  

Assessment of L-Band SAOCOM InSAR coherence and its comparison with C-Band: A case study over managed forests in Argentina [PDF]

, 2022
The objective of this work is to analyze the behavior of short temporal baseline interferomet ric coherence in forested areas for L-band spaceborne SAR data.
Ariel Seppi, Santiago, Joseau, Marisa Jacqueline, López Martínez, Carlos   +2 more
core   +2 more sources

Interferometric Radar Satellite and In‐Situ Well Time‐Series Reveal Groundwater Extraction Rate Changes in Urban and Rural Afghanistan

Water Resources Research, Volume 61, Issue 3, March 2025.
Abstract Population growth, climate change, and a lack of infrastructure have contributed to an increase in water demand and groundwater exploitation in urban and rural Afghanistan, resulting in significant ground subsidence. Based on a 7‐year‐long Sentinel‐1 radar‐interferometric time‐series (2015–2022), we assess country‐wide subsidence rates.
N. Kakar, S. Metzger, T. Schöne, M. Motagh, H. Waizy, N. A. Nasrat, M. Lazecký, F. Amelung, B. Bookhagen   +8 more
wiley   +1 more source

Amplitude-Driven-Adaptive-Neighbourhood Filtering of High-Resolution Pol-InSAR Information [PDF]

, 2005
International audienceIn this paper a new method for fltering coherency matrices issued from Synthetic Aperture Radar (SAR) polarimetric interferometric data is presented.
Gay, Michel, Nicolas, Jean-Marie, Trouvé, Emmanuel, Vasile, Gabriel   +3 more
core   +1 more source

Measuring Mangrove Carbon Loss and Gain in Deltas [PDF]

, 2019
Demand for mangrove forest resources has led to a steady decline in mangrove area over the past century. Land conversions in the form of agriculture, aquaculture and urbanization account for much of the deforestation of mangrove wetlands.
Fatoyinbo, Temilola, Feliciano, Emanuelle, Lagomasino, David, Lee, SeungKuk, Mangora, Mwita M., Shapiro, Aurelie, Trettin, Carl   +6 more
core   +2 more sources

Evaluating the Performance of Sentinel‐1 SAR Derived Snow Depth Retrievals Over the Extratropical Andes Cordillera

Water Resources Research, Volume 61, Issue 2, February 2025.
Abstract Monitoring and estimating mountain snowpack mass over regional scales is still a challenge because of the inadequacy of observational networks in capturing spatiotemporal variability, and limitations in remotely sensed retrievals. Recent work using C‐band synthetic aperture radar (SAR) backscatter data from the Sentinel‐1 satellite mission has
N. Bulovic, F. Johnson, H. Lievens, T. E. Shaw, J. McPhee, S. Gascoin, M. Demuzere, N. McIntyre   +7 more
wiley   +1 more source

Observing Seasonal Variabilities of a Permafrost Landscape With PolSAR, InSAR and Pol-InSAR

IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing
Synthetic aperture radar (SAR) remote sensing is an established approach for observing Earth processes. The combination of different types of SAR acquisitions in polarimetric, interferometric, and polarimetric-interferometric frameworks is well studied ...
Paloma Saporta, Alberto Alonso-Gonzalez, Jennika Hammar, Inge Grunberg, Julia Boike, Irena Hajnsek   +5 more
doaj   +1 more source

Improved Goldstein Interferogram Filter Based on Local Fringe Frequency Estimation [PDF]

, 2016
The quality of an interferogram, which is limited by various phase noise, will greatly affect the further processes of InSAR, such as phase unwrapping. Interferometric SAR (InSAR) geophysical measurements’, such as height or displacement, phase filtering
Feng, Q., Ge, S., Liu, W., Wu, Z., Xu, H., You, Y.   +5 more
core   +1 more source

A New Age of SAR: How Can Commercial Smallsat Constellations Contribute to NASA's Surface Deformation and Change Mission?

Earth and Space Science, Volume 12, Issue 1, January 2025.
Abstract In response to the 2017 Decadal Survey, NASA conducted a five‐year study on the Surface Deformation and Change (SDC) designated observable to study potential mission concepts. As part of the SDC mission study, the Commercial Synthetic Aperture Radar (ComSAR) subgroup was tasked with evaluating the current landscape of the SAR and ...
Stacey A. Huang, Batuhan Osmanoğlu, Bernd Scheuchl, Shadi Oveisgharan, Jeanne M. Sauber, MinJeong Jo, Ala Khazendar, Ekaterina Tymofyeyeva, Betsy Wusk, Arif Albayrak   +9 more
wiley   +1 more source