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    USGS releases first-ever comprehensive geologic map of the Moon

    Lurker
    By Lurker,
    Have you ever wondered what kind of rocks make up those bright and dark splotches on the moon? Well, the USGS has just released a new authoritative map to help explain the 4.5-billion-year-old history of our nearest neighbor in space. For the first time, the entire lunar surface has been completely mapped and uniformly classified by scientists from the USGS, in collaboration with NASA and the Lunar Planetary Institute. The lunar map, called the "Unified Geologic Map of the Moon," will

    What unit of measurement is rxwaveform from the gedi l1b dataset in?

    bwoods
    By bwoods,
    Rxwaveform is listed in GEDI's data level product L1B's data dictionary as "The corrected receive (RX) waveforms. Use rx_sample_count and rx_sample_start_index to identify the location of each waveform. " This can also be seen in the attached image. I understand that waveforms are typically measured by amplitude as a function of time(or height), but are the values listed in rxwaveforms amplitudes? It doesn't explicitly say amplitude in the data dictionary, and what unit of measurement is amplitu

    SVM classification of multispectral data

    AdamL
    By AdamL,
    Hello everyone,   I am using Support Vector Machine (SVM) classifier on ASTER and Sentinel-2 datasets to map geological units. I am familiar with the basic statistical concept of SVM classifier, but in more practical terms, how does it use the spectral data from the satellite imagery to classify different classes? How does it determine the most accurate fit from the image-based training dataset?  Thank you to all of you, Cheers!

    Hands-on Workshop on WebGIS and Mapping

    Profound
    By Profound,
    Hands-on Workshop on WebGIS and Mapping 11th May 2020 to 22nd May 2020. Web GIS is a new pattern for delivering GIS capabilities on the web. Maps on the web provide a new paradigm for how people everywhere access and use geographic information. They use GIS maps on their desktops, the web, tablets, and smartphones for a sophisticated range of activities to apply advanced geographic information. Web GIS is a transformation of GIS that brings analytics to spatial data in a way that wasn’

    Covid-19

    intertronic
    By intertronic,
    for anyone who works with COVID-19, you can get a 6-month free ArcGIS licence https://www.esri.com/en-us/disaster-response/request-assistance Info  To help public health agencies and other organizations jump-start their response to coronavirus disease 2019 (COVID-19), Esri is providing the ArcGIS Hub Coronavirus Response template at no cost along with a complimentary six-month ArcGIS Online subscription with ArcGIS Hub Basic and ArcGIS Insights. The ArcGIS Hub Coronavirus Res

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