High resolution mapping of soil moisture in agriculture based on Sentinel-1 interferometric data

Conde, Vasco; Catalão, João; Nico, Giovanni; Benevides, Pedro

doi:10.1117/12.2325709

Cited by 4 publications

(1 citation statement)

References 9 publications

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“…This implies that the signal‐to‐noise ratio may not improve with adding more data, as commonly expected. A number of recent studies have attributed the phase nonclosure to physical processes, such as variations in soil moisture (e.g., Conde et al, ; Zan et al, ; Zwieback et al, , ). However, our results indicate that phase inconsistencies emerge due to data processing, specifically filtering and/or multilooking of the radar phase, and do not affect the raw radar phase.…”

Section: Discussionmentioning

confidence: 99%

Slow Slip Event On the Southern San Andreas Fault Triggered by the 2017 M_w8.2 Chiapas (Mexico) Earthquake

et al. 2019

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Observations of shallow fault creep reveal increasingly complex time‐dependent slip histories that include quasi‐steady creep and triggered as well as spontaneous accelerated slip events. Here we report a recent slow slip event on the southern San Andreas fault triggered by the 2017 Mw8.2 Chiapas (Mexico) earthquake that occurred 3,000 km away. Geodetic and geologic observations indicate that surface slip on the order of 10 mm occurred on a 40‐km‐long section of the southern San Andreas fault between the Mecca Hills and Bombay Beach, starting minutes after the Chiapas earthquake and continuing for more than a year. Both the magnitude and the depth extent of creep vary along strike. We derive a high‐resolution map of surface displacements by combining Sentinel‐1 Interferometric Synthetic Aperture Radar acquisitions from different lines of sight. Interferometric Synthetic Aperture Radar‐derived displacements are in good agreement with the creepmeter data and field mapping of surface offsets. Inversions of surface displacement data using dislocation models indicate that the highest amplitudes of surface slip are associated with shallow (<1 km) transient slip. We performed 2‐D simulations of shallow creep on a strike‐slip fault obeying rate‐and‐state friction to constrain frictional properties of the top few kilometers of the upper crust that can produce the observed behavior.

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Section: Discussionmentioning

confidence: 99%

Slow Slip Event On the Southern San Andreas Fault Triggered by the 2017 M_w8.2 Chiapas (Mexico) Earthquake

et al. 2019

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Comparison of In-Field Measurements and INSAR Estimates of Soil Moisture: Inversion Strategies of Interferometric Data

Conde

Nico

Catalão

2019

IGARSS 2019 - 2019 IEEE International Geoscience and Remote Sensing Symposium

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On the relationship between C-band interferometric coherence and crop phenology: case study of Metaponto plain (Basilicata, Italy)

Masci

Montesano

Nico³

et al. 2020

2020 XXXIIIrd General Assembly and Scientific Symposium of the International Union of Radio Science

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High resolution mapping of soil moisture in agriculture based on Sentinel-1 interferometric data

Cited by 4 publications

References 9 publications

Slow Slip Event On the Southern San Andreas Fault Triggered by the 2017 M_w8.2 Chiapas (Mexico) Earthquake

Slow Slip Event On the Southern San Andreas Fault Triggered by the 2017 M_w8.2 Chiapas (Mexico) Earthquake

Comparison of In-Field Measurements and INSAR Estimates of Soil Moisture: Inversion Strategies of Interferometric Data

On the relationship between C-band interferometric coherence and crop phenology: case study of Metaponto plain (Basilicata, Italy)

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High resolution mapping of soil moisture in agriculture based on Sentinel-1 interferometric data

Cited by 4 publications

References 9 publications

Slow Slip Event On the Southern San Andreas Fault Triggered by the 2017 Mw8.2 Chiapas (Mexico) Earthquake

Slow Slip Event On the Southern San Andreas Fault Triggered by the 2017 Mw8.2 Chiapas (Mexico) Earthquake

Comparison of In-Field Measurements and INSAR Estimates of Soil Moisture: Inversion Strategies of Interferometric Data

On the relationship between C-band interferometric coherence and crop phenology: case study of Metaponto plain (Basilicata, Italy)

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Product

Resources

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Slow Slip Event On the Southern San Andreas Fault Triggered by the 2017 M_w8.2 Chiapas (Mexico) Earthquake

Slow Slip Event On the Southern San Andreas Fault Triggered by the 2017 M_w8.2 Chiapas (Mexico) Earthquake