Top Tweets for #virtcons
๐ขVirtual constellation for #NRT change, probability map can be updated every 3 days. #virtcons
#Landsat 7, 8, #Sentinel2 A+B harmonized as input.
Shang et al. Near-real-time monitoring of land disturbance with harmonized Landsats 7โ8 and Sentinel-2 data.
https://t.co/IMxi3pkrDX
Science and tool towards goal of realizing a Virtual Constellation. Harmonized surface reflectance, #Sentinel2 #Landsat. #VirtCons
For tool:
https://t.co/iPPa1Kn1xN
๐จAnalysis ready data enables virtual constellation, update of historic time series. Wulder et al. Augment #Landsat #timeseries with Harmonized Landsat #Sentinel2 data products: Assessment of spectral correspondence. #virtcons #HLS #ARD #NRCanSci https://t.co/nlhqzOY0Qo
Deep-learning was used to enhance the spatial resolution of Landsat rNBR images. Result 10m change maps. Downscaling and #timeseries.
Zhang et al. Tracking small-scale tropical forest disturbances: Fusing the #Landsat and #Sentinel2 data record. #virtcons
https://t.co/mpYJmFqeQu
Excellent post. ๐
"It's not the sale of data that create its value, it is its circulation"
Valuable to update and collect these thoughts and not take #opendata for granted.
#Landsat #Sentinel2 #Sentinel #VirtCons #timeseries
Most #remotesensing users, and especially those of #Sentinel1 and #Sentinel2, are probably convinced of the benefits of free and open data, but we still need to convince a few colleagues. I have summarized my arguments in a blog post :
https://t.co/JhxiUhGVZC
Li & Chen. Global Revisit Interval Analysis of #Landsat-8 -9 and #Sentinel-2A -2B Data for Terrestrial Monitoring.
#virtcons #Landsat8 #Sentinel2
Global median average of revisit intervals for the combination of four sensors was 2.3 days (2.9 without L9).
https://t.co/sMxFTIz83H
Improved ability to integrate #Landsat & #Sentinel2, through increased geometric accuracy. Integrating data from independent satellite programs, shows value of collaboration. Data from both programs improved. Towards reality of a virtual constellation. #virtcons #timeseries #GCP
#LandsatPublication: Harmonizing the Landsat ground reference with the @CopernicusEU #Sentinel2 Global Reference Image (GRI) using space-based bundle adjustment. ๐ฐ๏ธ๐บ๏ธ
https://t.co/0Rh30GIwNr
๐ขContinental phenology at 30 m!!!
Bolton et al. Continental-scale land surface #phenology from harmonized #Landsat 8 & #Sentinel2 imagery. Capture fine scale changes related to #landuse & #landcover. QA w/ #phenocam & #MODIS. #VirtCons #HLS
#OpenAccess:
https://t.co/YlVMTMmdKE
Wondering what's up with the #Landsat program? ๐ค
Check out: "Current status of Landsat program, science, & applications"
#openaccess #opendata #Landsat9 #Landsat10 #landcover #timeseries #ARD
Plus, virtual constellation thoughts with #Sentinel2. #VirtCons
https://t.co/zPwZC2y0ad
Cross-calibration allows #Landsat to act as "historic" #Sentinel2 archive.
Virtual Constellations bring together multiple sensors, #opendata, increased temporal density, improving science & applications. #landcover #virtcons
Concept review, definitions: https://t.co/tFeflS3cYM
Used all data and integrated observations into 3 defined temporal intervals (10-day, monthly & seasonal). ๐ฉ๐ช ๐บ๏ธ
Griffiths etal. Intra-annual reflectance composites from #Sentinel2 and #Landsat for national-scale crop and #landcover mapping. #virtcons
https://t.co/1ieoFmMugs
Satellite Virtual Constellations. ๐ง
Concept becoming reality with #Landsat & #Sentinel2.
Review includes a number of sensors and ties to virtual constellation outcomes to science and applications drivers. #landcover #virtcons
Concept review, definitions: https://t.co/tFeflS3cYM
Landsat & Sentinel-2 as a Virtual Constellation. Science to products for an integrated surface reflectance record from Landsat / #Sentinel2.
Claverie et al. 2018. The Harmonized #Landsat and Sentinel-2 surface reflectance data set. #virtcons
#OpenAccess: https://t.co/wmu1IiR1qm
Interesting overview. Places current EO systems and business models in perspective, offers views of future.
Denis etal. Towards disruptions in Earth observation? New Earth Observation systems and markets evolution: Possible scenarios and impacts. #virtcons
https://t.co/jB8b1DI02C
Cross-calibration means #Landsat acts as "historic" #Sentinel2 archive.
Virtual Constellation of #Landsat & #Sentinel2, compatible #opendata, increased temporal density, improving science and applications. #landcover #landuse #virtcons
#OpenAccess: https://t.co/tFeflS3cYM
Rapid changes in global environment pose challenges that are increasingly difficult to address using data from single satellites.
Virtual constellation of #Landsat & #Sentinel2 provide global, calibrated, science-grade, measures. #virtcons
#OpenAccess: https://t.co/tFeflS3cYM
#LandCover & land change are no longer independent activities: #timeseries change informs & enriches land cover generation. #LandCover2.0, brings together advancements in data sources & policies, algorithms, & computational capacity. #Landsat #Sentinel2 #VirtCons #LandCover2
Rapid changes in global environment pose challenges that are increasingly difficult to address using data from single satellites.
Virtual constellation of #Landsat & #Sentinel2 provide global, calibrated, science-grade, measures. #virtcons
#OpenAccess: https://t.co/DHNQDi02tK
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