“The Sentinel-1 mission comprises a constellation of two polar-orbiting satellites, operating day and night performing C-band synthetic aperture radar imaging, enabling them to acquire imagery regardless of the weather.”(link)

https://sentinel.esa.int/web/sentinel/user-guides/sentinel-1-sar/acquisition-modes

Mode\Resolution\Pixel spacing
SM\9×9 m\3.5×3.5 m

API

NASA ARSET: Basics of Synthetic Aperture Radar (SAR), Session 1/4

DEEP LEARNING IN SAR-OPTICAL DATA FUSION arxiv

big guns > https://en.wikipedia.org/wiki/TerraSAR-X#TerraSAR-X_imaging_modes

20181130-014139.png_400

esa_sar_tutorial.pdf - great intro

https://en.wikipedia.org/wiki/Synthetic-aperture_radar

https://en.wikipedia.org/wiki/Space-based_radar

• mmm 10cm resolution
• depth (?)

python library pyradar written by a spanish, we need to meet him

“The Alaska Satellite Facility provides production, archiving and distribution to the scientific community of SAR data products and tools from active and past missions, including the June 2013 release of newly processed, 35-year-old Seasat SAR imagery.”

see a helpful SA answer EOLi (Earth Observation Link ) is the European Space Agency's client for Earth Observation Catalogue Service. also > alska datasets > d/l with script pdf

https://daac.ornl.gov/daacdata/eos_land_val/sar_subsets/data/

https://dx.doi.org/10.3334/ORNLDAAC/993

https://daac.ornl.gov/cgi-bin/dsviewer.pl?ds_id=993

5,3,0.7m

images from planetscope

link to full resolution scan (cropped) for 18th in november

that is an excerpt from planets free samples on registration.

• 200sq/km scans
• 3sq/m resolution ("4.77m at the equator")
• a daily scan cycle
• with 7 day delay

site

access via a command line and a nice web based tool.

notice the tent(?)

google view