| Satellite | Spatial Resolution (pixel size) | Time series online | Temporal Resolution at Equator | Download Data for additonal bands, analysis | Web site | Online Viewing Directions |
| GOES | 500 m (and larger) | Current | 5 minutes | get some in KMZ (says Geotiff, but you may have to use those in QGIS) | Pick Goes East, Full disk Pick Geocolor, true color daytime (top left choice) and animation loop |
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| MODIS on Aqua, Terra Suomi NPP VIIRS |
250 m (and larger) | 2000-present, MODIS 2015-present, VIIRS |
1-2 days (gaps in daily coverage at equator) | Yes, but only registered images MODIS bands |
https://wvs.earthdata.nasa.gov/ | Directions |
| NASA Worldview | via Earthdata search |
https://worldview.earthdata.nasa.gov |
Slider at bottom of screen for dates Comparison slider |
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| Landsat USGS/NASA multispectral | 15 m Pan, 30 m multispectral (improved over time) | 1984 to present | 16 days (8 when Landsat 9 becomes operational) | Yes, bands as Geotiff from
Landsat download directions from USGS |
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| Sentinel-2 ESA multispectral | 10 and 20 m (VIS and NIR) to 60 m (SWIR) resolution | 2015 to present | 10 days (5 with two satellites) | Yes, bands as JP2 Sentinel_2
download directions from USGS
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| Sentinel-1 ESA active radar | Few meters, variable resolution and pixel geometry | Near daily | https://apps.sentinel-hub.com/sentinel-playground/--best source for viewing | Options for the different polarizations | ||
| Sentinel-1, and Sentinel-2 | World cover viewer: https://viewer.esa-worldcover.org/worldcover/ | See World Cover, and composites from Sentinel-1 and Sentinel-2 | ||||
| Sentinel Hub EO Browser |
Free account allows more options More powerful than Playground (meaning more complex) sentinel-hub user-guide/ Registered image downloads requires login (slow to be approved) |
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| Commercial Maxar (GeoEye and WorldView satellites) |
Best is 30 cm | Daily or better | Buy commercial product. Planet has a similar but not public product, and both Planet and Maxar produce data used by journalists. Airbus Pleiades Neo (30 cm PAN resolution, 1.2 m 6 MSI bands including deep blue and red edge, with at least two possible detections per day) could be another alternative. One Atlas is their online platform with imagery and WorldDEM; cheapest package is $5K per year |
https://discover.digitalglobe.com/ | https://content.planet.com/snapshots |
Images for particular usage, and compute areas in the imagery
Last revision 6/6/2022