Earth BlueMarbleivo://CDS/P/Earth/BlueMarbleCDSFernique P.2018-01-21T16:50:00Z2019-05-21T06:51:00ZCDS Helpdeskcds-question@unistra.frEarth (planet)Blue Marble: Next Generation offers greater spatial detail of the surface and spans a longer data collection period than the original. The original Blue Marble was a composite of four months of MODIS observations with a spatial resolution (level of detail) of 1 square kilometer per pixel. Blue Marble: Next Generation offers a years worth of monthly composites at a spatial resolution of 500 meters. These monthly images reveal seasonal changes to the land surface: the green-up and dying-back of vegetation in temperate regions such as North America and Europe, dry and wet seasons in the tropics, and advancing and retreating Northern Hemisphere snow cover. From a computer processing standpoint, the major improvement is the development of a new technique for allowing the computer to automatically recognize and remove cloud-contaminated or otherwise bad data - a process that was previously done manually. Credit: Blue Marble: Next Generation was produced by Reto Stockli, NASA Earth Observatory (NASA Goddard Space Flight Center). Original acknowledgement for data: Blue Marble: Next Generation was produced by Reto Stockli, NASA Earth Observatory (NASA Goddard Space Flight Center)https://alasky.cds.unistra.fr/Planets/CDS_P_Earth_BlueMarbleSurveyResearchIsDerivedFromNASA's Earth ObservatoryThis HiPS is distributed under ODbL license by Unistra/CNRShttps://alasky.cds.unistra.fr/Planets/CDS_P_Earth_BlueMarblehttps://alaskybis.cds.unistra.fr/Planets/CDS_P_Earth_BlueMarblehttps://alasky.cds.unistra.fr/Planets/CDS_P_Earth_BlueMarble/Moc.fits