Results 31 to 40 of about 12,472 (225)

High quality InSAR data linked to seasonal change in hydraulic head for an agricultural area in the San Luis Valley, Colorado [PDF]

open access: yes, 2011
In the San Luis Valley (SLV), Colorado legislation passed in 2004 requires that hydraulic head levels in the confined aquifer system stay within the range experienced in the years 1978–2000.
Agram, Piyush Shanker   +5 more
core   +1 more source

A Coherence Improvement Method Based on Sub-Aperture InSAR for Human Activity Detection

open access: yesSensors, 2021
Human activity detection plays an important role in social security monitoring. Since human activity is very weak, it is necessary to employ the repeat-pass Interferometric Synthetic Aperture Radar (InSAR) technique to detect the potential activity ...
Zhongbin Wang   +6 more
doaj   +1 more source

Improving InSAR geodesy using global atmospheric models [PDF]

open access: yes, 2014
Spatial and temporal variations of pressure, temperature and water vapor content in the atmosphere introduce significant confounding delays in Interferometric Synthetic Aperture Radar (InSAR) observations of ground deformation and bias estimatesof ...
Agram, Piyush Shanker   +6 more
core   +4 more sources

Estimating snow accumulation and ablation with L-band interferometric synthetic aperture radar (InSAR)

open access: yesThe Cryosphere, 2023
Abstract. Snow is a critical water resource for the western United States and many regions across the globe. However, our ability to accurately measure and monitor changes in snow mass from satellite remote sensing, specifically its water equivalent, remains a challenge.
J. Tarricone   +6 more
openaire   +3 more sources

BASELINE ESTIMATION ALGORITHM WITH BLOCK ADJUSTMENT FOR MULTI-PASS DUAL-ANTENNA INSAR [PDF]

open access: yesThe International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2016
Baseline parameters and interferometric phase offset need to be estimated accurately, for they are key parameters in processing of InSAR (Interferometric Synthetic Aperture Radar).
G. Jin   +4 more
doaj   +1 more source

A Novel Phase Unwrapping Method Used for Monitoring the Land Subsidence in Coal Mining Area Based on U-Net Convolutional Neural Network

open access: yesFrontiers in Earth Science, 2021
Large-scale and high-intensity mining underground coal has resulted in serious land subsidence. It has caused a lot of ecological environment problems and has a serious impact on the sustainable development of economy.
Zhiyong Wang   +5 more
doaj   +1 more source

A multiscale approach for detection and mapping differential subsidence using multi-platform InSAR products [PDF]

open access: yesProceedings of the International Association of Hydrological Sciences, 2020
Detecting and mapping subsidence is currently supported by interferometric synthetic aperture radar (InSAR) products. However, several factors, such as band-dependent processing, noise presence, and strong subsidence limit the use of InSAR for assessing ...
D. E. Solano-Rojas   +5 more
doaj   +1 more source

MATHEMATICAL AND PHYSICAL APPROACHES TO INFER ABSOLUTE ZENITH WET DELAYS FROM DOUBLE DIFFERENTIAL INTERFEROMETRIC OBSERVATIONS USING ERA5 ATMOSPHERIC REANALYSIS [PDF]

open access: yesThe International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2023
Atmospheric water vapor (WV) is one of the driving constituents of the atmosphere. The modelling and forecasting of WV and derived quantities like precipitable water is reliable on regional scales but challenging on small scales because of its high ...
B. Kamm, A. Schenk, P. Yuan, S. Hinz
doaj   +1 more source

Calibrating interferometric synthetic aperture radar (InSAR) images with regional GPS network atmosphere models [PDF]

open access: yesGeophysical Journal International, 2015
Interferometric synthetic aperture radar (InSAR) technology provides a valuable tool for obtaining Earth surface deformation and topography at high spatial resolution for crustal deformation studies. Similar to global positioning system (GPS), InSAR measurements are affected by the Earth's ionospheric and tropospheric layers as the electromagnetic ...
Yuval Reuveni   +3 more
openaire   +1 more source

Error estimation in multitemporal InSAR deformation time series, with application to Lanzarote, Canary Islands [PDF]

open access: yes, 2011
Interferometric Synthetic Aperture Radar (InSAR) is a reliable technique for measuring crustal deformation. However, despite its long application in geophysical problems, its error estimation has been largely overlooked.
Fernández Torres, José   +1 more
core   +5 more sources

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