Remote sensing resources.
One of a number of instruments on board the Terra platform, which was launched in December 1999. ASTER provides fourteen spectral bands with 15 to 90 meter resolutions depending on the band(s). ASTER does not acquire data continuously; its sensors are activated only to collect specific scenes upon request.
The ISS-RapidScat instrument is a speedy and cost-effective replacement for NASA's QuikScat Earth satellite, which monitored ocean winds to provide essential measurements used in weather predictions, including hurricane monitoring. So essential were QuikScat's measurements that when the satellite stopped collecting wind data in late 2009, NASA was challenged to quickly and cost-effectively conceive of a replacement. NASA's Jet Propulsion Laboratory and the agency's station program came up with a solution that uses the framework of the International Space Station and reuses hardware originally built to test parts of QuikScat to create an instrument for a fraction of the cost and time it would take to build and launch a new satellite.
The Landsat program hosts the longest record of images collected of the Earth in existence.
- The program has so far consisted of the eight missions, beginning in 1972 with the Launch of Landsat 1.
- Landsat 3 introduced a fifth, thermal band.
- Landsat 4 introduced the Thematic Mapper, which consisted of 7 bands and a 30m resolution.
- Landsat 5 was in most ways similar to 4.
- Landsat 6 failed to achieve orbit.
- Landsat 7 introduced an improved thermal sensor and a panchromatic band. In 2003, it's scan-line corrector failed, yielding heavily banded images.
- Landsat 8 was launched in 2013, capturing 11 bands.
- Landsat 9 is scheduled to launch in 2023.
Since 2008, Landsat data has been publically available making it a staple for many remote-sensing workflows.
Data can be acquired using:
- Snapsat
- Astrodigital's Fetch
- Development Seed's landsat-util
- Earth Explorer
- Amazon's Public Data Sets
- MODIS (Moderate Resolution Imaging Spectroradiometer)
- On Terra and Aqua satellites.
- Terra passes from North to South
- Aqua passes from South to North
- Each captures 36 spectral bands.
- Provides complete coverage of the Earth every other day.
- Designed to measure large-scale dynamics, including cloud coverage, radiation, forest fires, water levels, and ocean processes.
Watching the Earth breathe.
Launched July 2, 2014, OCO-2 is the first dedicated remote-sensing satellite built to measure atmospheric carbon dioxide levels from space. OCO-2 is able to quantify CO2 variability over seasonal cycles.
- Sentinel 1 Scientific Data Hub
- Sentinel Data Access
- Nepal Earthquake on radar
- InSARap
- ESA Climate Change Initiative datasets
Data can be acquired using:
- Sentinel Scientific Data Hub
- VERTEX - Alaska Satellite Facility Data Portal
- SEDAS - SENTINEL DATA ACCESS SERVICE
- PEPS - Plateforme d’Exploitation des Produits Sentinel (Fr)
VIIRS, a scanning radiometer, collects visible and infrared imagery and radiometric measurements of the land, atmosphere, cryosphere, and oceans. VIIRS data is used to measure cloud and aerosol properties, ocean color, sea and land surface temperature, ice motion and temperature, fires, and Earth’s albedo. Climatologists use VIIRS data to improve our understanding of global climate change. Useful for differentiating between different phases of water.
- An overview of Satellite imagery resources
- Earth Explorer
- Land Surface Imaging Explorer
- An introduction to Hyperspectral remote sensing
- WELD Distribution System
- NASA NEX
- Australian's doing cool things
- Wikipedia: Multispectral images
- Wikipedia: Multispectral pattern recognition
- LEDAPS and a repo
- The HDF5 file format
- Moon data!