- #Atmos b2 basic digital atmosphere controller series
- #Atmos b2 basic digital atmosphere controller free
This band is relevant to both Surface Reflectance and Surface Temperature products. Different bit definitions are used because the cirrus band is only available on Landsat 8. Pixel quality assessment (QA_PIXEL) bands for Landsat 5, 7 and 8 are generated by the CFMask algorithm. More inforamtion can be found from Landsat 8 OLI/TIRS Collection 2 Science Product Guide and Landsat 8-9 OLI/TIRS Collection 2 Level 2 Data Format Control Book Surface reflectance band 1 (Coastal Aerosol) Landsat 8 Level-2 science product is generated using a different algorithm and has different output measurements compared to Landsat 5 and Landsat 7. Table 3: Landsat 8 Level-2 Surface Reflectance measurements More inforamtion can be found from the Landsat 4-7 Collection 2 Science Product Guide. \(^\ddagger\) Physical measurement can be derived from the Digital Number (DN) stored in the product using the conversion equation listed. Surface reflectance band 5 (Short Wavelength Infrared (SWIR) 1) Surface reflectance band 4 (Near-Infrared (NIR)) Table 2: Landsat 5 and Landsat 7 Level-2 Surface Reflectance measurements Operational Land Imager (OLI), Thermal Infrared Sensor (TIRS) Multispectral Scanner (MSS), Thematic Mapper (TM) Table 1: Landsat Collection 2 Level-2 Surface Reflectance product specifications Landsat 8 Collection 2 Level-2 Surface Reflectance Landsat 7 Collection 2 Level-2 Surface Reflectance Landsat 5 Collection 2 Level-2 Surface Reflectance Relevant coverage and metadata can be viewed on DE Africa Metadata Exploer: Variations in satellite measured radiance due to atmospheric properties have been corrected for so images acquired over the same area at different times are comparable and can be used readily to detect changes on Earth’s surface.ĭE Africa provides Landsat Collection 2 Level-2 from Landsat 5, 7 and 8 as seperate products. Surface reflectance is the fraction of incoming solar radiation that is reflected from Earth’s surface. Information for the Surface Temperature product can be found in the Landsat Collection 2 Level-2 Surface Temperature specification. This document provides technical specifications for the Surface Reflectance product. USGS Landsat Collection 2 Level-2 includes: This internationally-recognised certification ensures these products have been processed to a minimum set of requirements and organised into a form thatĪllows immediate analysis with a minimum of additional user effort and interoperability both through time and with other datasets. The Level-2 products are endorsed by the Committee on Earth Observation Satellites (CEOS) to be Analysis Ready Data for Land ( CARD4L)-compliant.
USGS Landsat Collection 2 was released early 2021 and offers improved processing, geometric accuracy, and radiometric calibration compared to previous Collection 1 products. See Landsat Collection 2 Generation Timeline for details.
New Level-2 Landsat 7 and Landsat 8 data are available after 15 to 27 days from acquisition. DE Africa provides data from Landsat 5, 7 and 8 satellites, including historical observations dating back to late 1980s and regularly updated new acquisitions.
#Atmos b2 basic digital atmosphere controller series
The Landsat series of Earth Observation satellites, jointly led by USGS and NASA, have been continuously acquiring images of the Earth’s land surface since 1972.
These products are produced and provided by the United States Geological Survey (USGS).
#Atmos b2 basic digital atmosphere controller free
In addition to Ethernet, built-in Wi-Fi allows for tablets and other controlling devices to connect directly to the AZM8.Digital Earth Africa (DE Africa) provides free and open access to a copy of Landsat Collection 2 Level-2 products over Africa.
Built around Progressive Web App technology, the control interface is device agnostic, responsive, and meticulously designed for an ideal user experience without sacrificing design freedom. Programming is simple through a modern on-board web interface, optimized around common use-cases. Up to 16 of these plug-and-play Accessories can be connected across 4 accessory ports on the AZM8, with each port designed to work reliably up to 1000ft. The AZM8 is compatible with all six of the Atmosphere accessories for control, remote audio input, and ambient noise sensing. A built-in message player, virtual wall controllers, learning ambient noise sensing, Tilter Filter™, auto-gain, GPIO, bell scheduler, room combine, and many more features, make the AZM a processing powerhouse. Powerful DSP combined with innovative algorithms offer custom solutions for a wide variety of spaces. The Atmosphere AZM8 is an 8-zone audio processor and the heart of an Atmosphere audio control system.
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