Contents
How do I download Landsat bands?
- Step 1 Set your area of interest in the “Search Criteria” tab. Users can double-click the browser to create regions of interest.
- Step 2 Select your data to download in the “Data Sets” tab.
- Step 3 Filter your data in the “Additional Criteria” tab.
- Step 4 Download free Landsat imagery in the “Results” tab.
Where can I download Landsat 8 data?
All Landsat data are available from USGS for free.
- LandsatLook Viewer.
- USGS GloVis: The Global Visualization Viewer.
- USGS Earth Explorer.
- Free Web Enabled Landsat Data (WELD)
- Free Orthorectified Landsat Data.
What are the bands in Landsat 8?
Landsat 8-9 Operational Land Imager (OLI) and Thermal Infrared Sensor (TIRS)
| Bands | Wavelength (micrometers) | Resolution (meters) |
|---|---|---|
| Band 1 – Coastal aerosol | 0.43-0.45 | 30 |
| Band 2 – Blue | 0.45-0.51 | 30 |
| Band 3 – Green | 0.53-0.59 | 30 |
| Band 4 – Red | 0.64-0.67 | 30 |
How do I access Landsat data?
Landsat data is accessible from the Amazon Web Services (AWS) cloud platform. Visit the Landsat Commercial Cloud Data Access page for more information.
Which sensor does Landsat 7 carry?
Landsat 7 carries the Enhanced Thematic Mapper Plus (ETM+) sensor, an improved version of the Thematic Mapper instruments that were onboard Landsat 4 and Landsat 5. Landsat 7 products are delivered as 8-bit images with 256 grey levels.
How much does it cost to download one Landsat image?
When Landsat moved to a publicly funded approach by making every scene available at no cost to the user, the number of scenes downloaded increased dramatically and the per-scene download cost dropped to approximately $0.10 each.
What is the QA band for Landsat Collection 1?
The Landsat Collection 1 Level-1 Quality Assessment (QA) 16-bit band allows users to apply per pixel filters to all Landsat Collection 1 Level-1 data products.
Why was the launch of Landsat 8 so important?
The launch of Landsat 8 has been the talk of the remote sensing community for good reason. This not only continues NASA’s streak of constant earth observation since 1972, but this satellite brings something new to the scientific community, the Quality Assessment (QA) Band.
What is the composite image quality of Landsat 8?
Values: 9 = Best. 1 = Worst. 0 = Image quality not calculated. This parameter is only present if OLI bands are present in the product. The composite image quality for the TIRS bands. Values: 9 = Best. 1 = Worst. 0 = Image quality not calculated.
What does SR _ QA _ aerosol mean on Landsat 8 / 9?
The SR_QA_AEROSOL band is delivered with the Landsat 8/9 Surface Reflectance product to provide low-level detail about the factors that may have influenced the final product result and shows whether the aerosol was a valid retrieval, or if it was interpolated from the surrounding grid points.