#syntheticapertureradar

NISAR: The New Radar in Space for Precision Mapping of Earth  
NISAR (acronym for NASA-ISRO Synthetic Aperture Radar or NASA-ISRO SAR), a joint collaborative mission of NASA and ISRO, was successfully launched...........
#Earth #Earthobservationsatellite #Earthscience #ISRO #NASA #NASAISROSyntheticApertureRadar #NISAR #Radar #SAR #science #Sciencenews #space #SyntheticApertureRadar #UmeshPrasad
Umesh Pr

https://www.scientificeuropean.co.uk/sciences/earth-science/nisar-the-new-radar-in-space/

I wasn't at #LivingPlanetSymposium this year but EO-Tools was ;)
Happy to contribute to this ambitious project.

#python #EarthObservation #SyntheticApertureRadar #OpenSource

Finland inks deal for country's first defence satellites

A Finnish manufacturer is to build satellites equipped with synthetic aperture radar (SAR) for the Ministry of Defence.

https://yle.fi/a/74-20169938

#FinnishManufacturer #Satellites #SyntheticApertureRadar #MinistryOfDefence #TechnologyDeployment

https://www.europesays.com/2176524/ Finland backs space tech ICEYE firm with R&D funding #BusinessFinland #finland #Iceye #nato #SatelliteTechnology #Suomi #SyntheticApertureRadar #UkraineWarImpact #uutiset

https://www.europesays.com/uk/110836/ Isro’s PSLV-C61/EOS-09 launch mission fails #EarthObservationSatellite #EOS09Satellite #IndianSpaceResearchOrganisation #ISROChairmanStatement #LaunchVehiclePerformance #PSLVFailure #PSLVPreviousFailures #SatishDhawanSpaceCentre #Science #Space #SyntheticApertureRadar #UK #UnitedKingdom

It's hard to get proper visualizations of SAR imagery due to high image dynamics. I have spent quite some time tweaking this one, which represents the parameters of the dual-pol H-alpha decomposition on the new Sentinel-1C sensor! Disclaimer: it's visually compelling, but probably not physically accurate. :)
#Sentinel1 #eo_tools #SyntheticApertureRadar #EarthObservation #python #RemoteSensing

Finally found some time to work on implementing the famous Cloude-Pottier H-alpha polarimetric decomposition for Sentinel-1. Hopefully I can release it soon! #eo_tools #python #OpenSource #RemoteSensing #EarthObservation #SyntheticApertureRadar

A Methodology For The Multitemporal Analysis Of Land Cover Changes And Urban Expansion Using Synthetic Aperture Radar (SAR) Imagery - A Case Study Of The Aburrá Valley In Colombia
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https://doi.org/10.3390/rs17030554 <-- shared paper
--
#GIS #spatial #mapping #SyntheticApertureRadar #SAR #remotesensing #multitemporalanalysis #landcover #landcoverchange #clustering #kurtosis #fuzzylogic #kernelbasedmethod #machinelearning #spatialanalysis #spatiotemporal #geostatistics #model #modeling #AburráValley #Columbia #urban #urbanexpansion #population #growth #topography #monitoring #satellite #sentinel #valley #landuse #distribution #infrastructure #building #roads #naturalresources #environmental #conservation #monitoring #multitemporal

Budget-Minded Synthetic Aperture Radar Takes to the Skies - Unless you work for the government or a large corporation, constrained designs are... - https://hackaday.com/2025/02/13/budget-minded-synthetic-aperture-radar-takes-to-the-skies/ #syntheticapertureradar #patchantenna #polarization #dronehacks #radiohacks #drone #fpgs #dsa #sar #uav

AI Uncovers 5,000-Year-Old Ancient Civilizations Hidden Beneath The World’s Largest Deserts
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https://dailygalaxy.com/2025/01/ai-uncovers-5000-year-old-ancient-civilizations-hidden-beneath-the-worlds-largest-deserts/ <-- shared technical article
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https://www.mdpi.com/2076-3263/13/6/179 <-- shared paper
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[older paper, but still fascinating…]
#GIS #spatial #mapping #desert #archaeology #MiddleEast #ancienthistory #AI #RubAlKhali #EmptyQuarter #SyntheticApertureRadar #SAR #remotesensing #machinelearning #artificalintelligence #deeplearning #settlements #pathways #humanmade #spatialanalysis #PALSAR2 #Worldview3 #SaruqAlHadid #Dubai #UEA #UnitedArabEmirates

EO-Tools 2025.1.1 is out!

Users can now choose one of SRTM, ALOS-World3D, Copernicus 30m and 90m DEMs in both Sentinel-1 InSAR and SLC processors.

GitHub: https://github.com/odhondt/eo_tools

#eo_tools #RemoteSensing #EarthObservation #SyntheticApertureRadar #python #FOSS #InSAR

I have just released a new build to version 2025.0.1 which fixes a bug in the shadow detector that may cause a kernel crash. It should be available in the conda-forge channel in the next few hours (time for their CI/CE bot to rescan the database).

#eo_tools #EarthObservation #RemoteSensing #SyntheticApertureRadar

EO-Tools 2025.1.0 "Happy New Year" edition is out!

Exciting new capability: terrain correction can now be applied in the SLC processor by choosing cal_type="terrain".

Check out the example notebook:
https://eo-tools.readthedocs.io/en/latest/s1-easy-terrain-flattening/

Give it a try and let me know how it works for you!

GitHub repo: https://github.com/odhondt/eo_tools

#eo_tools #RemoteSensing #EarthObservation #SyntheticApertureRadar #python #FOSS

This looks like an image from a retro sci-fi movie but it's actually a piece of a simulated SAR image rotated by 90 degrees. SAR-art.

#SyntheticApertureRadar #EarthObservation #RemoteSensing

To follow up on my previous post about InSAR coherence, this is an example showing how coherence changes when built-up areas replace vegetation and how it compares to optical. All images have been processed with EO-Tools ;)
(hover on image to see the animation)

#EarthObservation #SyntheticApertureRadar #Sentinel1 #environment #climateTech #RemoteSensing

EO-Tools version 2024.10.1 is out!
- New features: better S1 coherence estimator - multilooking is now performed prior to coherence computation. It avoids averaging the coherence itself (theoretically sounder approach).
- Bugfix: an error with DEM download due to Planetary Computer now requiring signed urls was fixed.

https://github.com/odhondt/eo_tools

#EarthObservation
#RemoteSensing
#SyntheticApertureRadar
#Sentinel1
#python
#foss
#geospatial
#InSAR

A great application of interferometric coherence is the masking out of vegetation to focus on built-up areas (or the opposite). The next version of eo-tools will introduce some improvements to the current coherence estimation implementation. Here is an example on the city of Berlin, displayed in QGIS.

#EarthObservation
#RemoteSensing
#SyntheticApertureRadar
#Sentinel1
#python
#foss
#geospatial
#InSAR
#qgis

EO-Tools version 2024.10.0 is out!

New features:
- Zipped S1 products can now be processed without prior unzipping (kudos to gdal/rasterio for making this easy),
- InSAR processing of partially overlapping products (like for instance from S1A and S1B) is possible provided they share the same orbit
plus some other minor changes - see the release notes: https://eo-tools.readthedocs.io/en/latest/changelog/

#EarthObservation
#RemoteSensing
#SyntheticApertureRadar
#Sentinel1
#python
#foss
#geospatial
#InSAR

Hmm, if anyone wants to test synthetic-aperture-radar on a drone (with ability to resolve a cell phone), have a target area in Oregon where a family has been looking for someone who went missing in 2020 that just pinged me for help. Satellite imaging is not going to help, too many trees. #SyntheticApertureRadar #SearchAndRescue #RemoteImaging

EO-Tools version 2024.9.2 is out! It is now easy to apply the well-known Goldstein filter to reduce phase noise.

Here is a tutorial: https://eo-tools.readthedocs.io/en/latest/s1-goldstein-phase-denoising/

#EarthObservation
#RemoteSensing
#SyntheticApertureRadar
#Interferometry
#Sentinel1
#python
#geospatial
#InSAR