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#elevation

3 posts2 participants0 posts today
Public
💧🌏 Greg Cocks

RiverREM - Generating River Relative Elevation Model (REM) Visualisations
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github.com/OpenTopography/Rive <-- shared GitHub repository
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opentopography.github.io/River <-- shared documentation
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opentopography.org/blog/new-pa <-- shared Open Topography blog post about RiverREM
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H/T Heidi Luchsinger / Open Topography
[this post should not be considered as an endorsement of this product aka caveat emptor]
#GIS #spatial #mapping #remotesensing #earthobservation #Python #LiDAR #RiverREM #visualisation #hydrology #water #river #rivervalley #floodplain #terraces #GitHub #opensource #opendata #DEM #REM #model #modeling #RiverRelativeModel #documentation #tutorial #learning #tool #elevation #raster #sinuosity #drainage

Public *
💧🌏 Greg Cocks

Identifying Environmental Risk Factors and Mapping the Distribution of West Nile Virus in an Endemic Region of North America
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doi.org/10.1029/2018GH000161 <-- shared paper
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[an older paper (2018) but a good one, including showing the versatility & usefulness of #FedScience spatial datasets]
#GIS #spatial #mapping #USA #WestNile #WestNileVirus #fedscience #NationalLandCoverDatabase #NLCD #virus #publichealth #arboviruses #environment #data #spatialanalysis #spatiotemporal #fedscience #geocoding #environmental #landcover #physiography #climate #weather #transmission #model #regressiontree #risk #hazard #riskmaps #elevation #humidity #rainfall #precipitation #disease #soil #integrated #opendata #mosquito #satellite #SouthDakota #pasturelands #crossdiscipline #virology #remotesensing #earthobservation #Pathobiology #Epidemiology
@USGS @USGS_EROS

Public *
💧🌏 Greg Cocks

Grfin Tools—User Guide And Methods For Modeling Landslide Runout And Debris-Flow Growth And Inundation
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pubs.usgs.gov/publication/tm14 <-- shared USGS publication
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code.usgs.gov/grfintools/grfin <-- shared USGS software release
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H/T Jonathan Perkins USGS
[ another open source resource for everyone from the USGS ~smile~ ]
#GIS #spatial #mapping #opensource #openlibrary #Grfin #software #package #regional #debrisflow #engineeringgeology #geology #inundation #spatialanalysis #spatiotemporal #geophysics #geophysical #massmovement #landslide #lahar #volcano #rock #avalanche #model #modeling #statistical #geostatistics #water #hydrology #downstream #elevation #remotesensing #DEM #flow #runout #risk #hazard #tools #slope #erosion #drainage #network #channel #channelisation #userguide
@USGS

screen shot - grfintools software repository home page (https://code.usgs.gov/grfintools/grfintools)
report figure 2 - Schematic flowchart illustrating common pathways for using Grfin Tools with examples identified in orange boxes
report figure 1 - Perspective view of topography illustrating the potential locations for three types of mass movements that can be derived from a Grfin Tools analysis.
USGS report cover page - Grfin Tools—User Guide And Methods For Modeling Landslide Runout And Debris-Flow Growth And Inundation
Public *
💧🌏 Greg Cocks

Data Request For Potomac River Tragedy - National Centers For Environmental Information (NCEI), NOAA In The News
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ncei.noaa.gov/ <-- shared NCEI home page
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“A CNN Reporter requested data to portray the depth of the Potomac River near the site of the tragic plane and helicopter crash. The Digital Elevation Model Bathymetry (DEM) Team responded with information on how to use NCEI’s high-resolution Continuously Updated Digital Elevation Models (CUDEMs) to generate a map of the Potomac River and provided an example map…”
#GIS #spatial #mapping #remotesensing #bathymetry #topobathy #DEM #elevation #depth #NCEI #opendata #CUDEM #disaster #collision #air #potomacriver #potomac #crash #airdisaster #Washington #helicopter #ArmyHelicopter #blackhawk #NOAA #aviation #midair
@NOAA @NCEI

maps - surrounds and topobathy at the 2025 Potomac River air tragedy site
photo - removing aeroplane debris from the 2025 Potomac River air tragedy site
Public *
💧🌏 Greg Cocks

Study Warns Of Glacial Outburst [GLOF] Risks From Hydropower Projects In The Himalayas, Caution Comes After Nod To Resume Testa III [Hydroelectric Project, India]
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timesofindia.indiatimes.com/in <-- shared media article
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doi.org/10.1126/science.ads265 <-- shared paper
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#GIS #spatial #mapping #spatialanalysis #GLOF #Sikkim #Himalayas #India #climatechange #flood #flooding #risk #hazard #hydroelectric #HEP #energy #TestaIII #testa #dam #failure #engineeringgeology #engineering #construction #multihazard #melting #glacier #glacial #climatechange #weather #lowpressuresystem #planning #glaciallakes #lakes #water #hydrology #naturaldisaster #Lhonak #downstream #elevation #steepness #slope #geometry #infrastructure #publicsafety #lateral #moraine #sedimentation #cost #economics #remotesensing #model #modeling #imagery #outburstflood #overtopping #hydropower #vulnerable #humanimpact #policy #riskmanagement #warning #rainfall #precipitation

maps and charts - summary of damage assessment
maps and photos - Overview of the 3-4 October 2023 GLOF cascade from South Lhonak Lake, India
photos - Field evidence of sediment aggradation
photo - Teesta III hydroelectric dam soon after failure
Public *
💧🌏 Greg Cocks

Edge Of Mars’ Great Dichotomy Eroded Back By Hundreds Of Kilometres
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arstechnica.com/science/2025/0 <-- shared technical article
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dx.doi.org/10.1038/s41561-024- <-- shared paper
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#GIS #spatial #mapping #planet #Mars #remotesensing #imagery #landsurface #geology #topography #astrogeology #elevation #morphology #martian #geography #marsdichotomy #plateau #lowlands #model #3dmodel #basin #highlands #shoreline #ocean #crust #structuralgeology #chemostratigraphy #morphostratigraphy #geomorphometry #geomorphology #water #hydrology #CaSSIS #HiRISE #stratigraphy #strata #MOLA #laser #LiDAR #MawrthVallis #crater #mound #profile #crosssection #geochemistry #mineralogy #CRISM #CTX #HRSC #DTM #erosion #weathering #spatialanalysis #spatiotemporal

images - Morphological similarities between the stratigraphy in the mounds and the Mawrth Vallis plateau region
3D model, map, images and charts - Chemostratigraphy and morphostratigraphy of a well-exposed mound
3D map and cross section - Three-dimensional view of study area with stacked elevation profiles
image/map - the topography of Mars by the Mars Orbital Laser Altimeter (MOLA)
Public
💧🌏 Greg Cocks

Collaboration Advances Elevation Mapping – USGS EROS And NGTOC Work Together To Map A 1 Metre Digital Elevation Model For A Watershed
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usgs.gov/centers/eros/news/col <-- shared technical article
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doi.org/10.5066/P1CEPE2M <-- USGS data release, Lower Androscoggin Watershed Hydrologic Unit 8 Seamless 1-m DEM Pilot, 2013 to 2020
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#GIS #spatial #mapping #remotesensing #LiDAR #water #hydrology #3dep #3dhp #3dtnm #NGTOC #spatialanalysis #elevation #DEM #EROS #seamlessonemeter #Androscoggin #ME #maine #research #integration #watershed #opendata
@USGS | @USGS_EROS

schematic - this graphic depicts an airborne lidar system, a remote sensing detection system that uses light from a laser. The quick light pulses measure the distance from the plane to the surface and back. GPS is used to help pinpoint location and time for greater accuracy.
map - the seamless 1-meter Digital Elevation Model (DEM) for the Lower Androscoggin watershed in Maine, produced by scientists at NGTOC and EROS. Elevations run from low elevation in light blue on up to tan, green, yellow, red and finally gray/white. The lowest point in the watershed is -.109777 meters, and the highest is 1,916.04 meters.
map / thumbnail - Lower Androscoggin watershed in Maine
This photo was taken at USGS gaging station 01055000 on the Swift River near Roxbury, Maine. The falls is most commonly referred to as Swift River Falls and has many potholes and scours that demonstrate the impressive ability of water to errode rock.
Public
💧🌏 Greg Cocks

Adding 3D Elevation Program's Dynamic Elevation Web Coverage Services To ArcGIS Pro And AGOL [training video]
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usgs.gov/ngp-user-engagement-o <-- shared technical article
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youtu.be/sDEMHT2CmZw?si=u90-96 <-- shared video
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usgs.gov/3d-elevation-program/ <-- about 3DEP products & services
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apps.nationalmap.gov/services/ <-- link to USGS National Map Web Services
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#GIS #spatial #mapping #elevation #LiDAR #ifSAR #3dep #ArcGISPro #AGOL #training #video #learning #NationalMap #services #raster #topography #opendata #DynamicElevationWebCoverageService #DigitalElevationModels #DEM #DTM #onlinelearning #tutorial
@USGS

screen shot - ArcGIS Pro - 3D view of landsurface elevation data
screen shot - USGS training video - Adding 3D Elevation Program's Dynamic Elevation Web Coverage Services To ArcGIS Pro And AGOL
map - ifSAR data of ground surface created by poster, near Kaktovik Alaska on the Beaufort Sea / Arctic
map/image - LiDAR image, Laguna Creek
Public
💧🌏 Greg Cocks

Elevation-Derived Hydrography [EDH] - The USGS’s Rich New Hydrological Features Dataset
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doi.org/10.2489/jswc.2024.0314 <-- shared paper
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pubs.usgs.gov/publication/tm11 <-- USGS EDH Representation, Extraction, Attribution, and Delineation Rules reference publication
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usgs.gov/3d-hydrography-progra <-- shared link to the USGS 3DHP page
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[in my role, I have the pleasure of working with the valuable EDH process(es) and the data it produces on a daily basis]
#GIS #spatial #mapping #water #hydrology #hydrography #3dep #edh #3dhp #elevationderivedhydrography #opendata #elevation #dem #dtm #interpretation #waterfeatures #usecase #waterresources #floodmodeling #alignment #model #modeling #dataset #naturalresources #costs #benefits #economics #businessuse #publicdata #spatialanalysis #USA #USGS
@USGS

map - Geomorphon index data overlaid on hillshade data for Elevation-Derived Hydrography production
maps - (a) Using contours and (b) geomorphon index to validate and refine stream location in Elevation-Derived Hydrography dataset.
maps - Progression of developing derived stream features from a Digital Elevation Model (left to right).
LiDAR base map / image - stream and road, false colour
Public
💧🌏 Greg Cocks

ESA And NASA Deliver First Joint Picture Of Greenland Ice Sheet Melting
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esa.int/Applications/Observing <-- shared technical article
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doi.org/10.1029/2024GL110822 <-- shared paper
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[Visualising the latest results from ESA's CryoSat radar altimeter, consistent with measurements from NASA's ICESat-2 laser altimeter]
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#GIS #spatial #mapping #remotesensing #earthobservation #cryosphere #Greenland #icesheet #melting #CryoSat #satellite #ICESat2 #spatiotemporal #spatialanalysis #Jakobshavn #glacier #ice #snow #radar #laser #iceloss #climatechange #altimeter #elevation #topography #height
@ESA @nasa

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