# Storytelling from Space: Tools/Resources This list of resources is all about acquring and processing aerial imagery. It's generally broken up in three ways: how to go about this in Photoshop/GIMP, using command-line tools, or in GIS software, depending what's most comfortable to you. Often these tools can be used in conjunction with each other. ## Acquiring Landsat & MODIS ### Web Interface * USGS Earth Explorer - Browser and data access (create a login) - Landsat archive - Many other products, like aerial/orthophotography * GLOVIS (Java/Firefox required) - Similar data different interface * NASA WorldView - Browser and data access * NASA GIBS - MODIS tileserver * NASA Near-Real Time satellite data links * Google Earth Engine * Landsat 8 Acquisition Calendar ### Scripting * Landsatutil (Development Seed) * Fetch from Google Earth Engine * Landsat 8 data on AWS * Landsat data on Google Storage ## Processing Landsat ### Background * Landsat 7/8 bands and combinations ### Photoshop * How To Make a True-Color Landsat 8 Image (Rob Simmon, NASA) * Processing Landsat 8 (Tom Patterson, National Park Service) * Avenza Geographic Imager - Expensive but excellent plugin. Allows you to much of what GDAL does (plus things it can't) and preserve geographic metadata. * Without Geographic Imager, you need GDAL tools if you want to preserve geographic metadata: Dump metadata from a file before messing with it in Photoshop ``` listgeo -no_norm original.tif > original.geo ``` Add the metadata back after saving back out ``` geotifcp -g original.geo modified.tif modified_geotiff.tif ``` ### GIMP * Merging bands into RGB in GIMP * Pansharpening in GIMP (translate from Portuguese!) ### Scripting ##### GDAL - Geospatial Data Abstraction Library & ImageMagick (command-line photoshop) * GDAL: ogr2ogr (for vector) and GDAL (for raster) ``` brew install gdal --enable-unsupported --with-postgres ``` *note: "--enable-unsupported" allows you to install third party drivers, necessary for proprietary formats like MrSID and FileGDB. See this * * ImageMagick, aka `convert` ``` brew install imagemagick ``` * **GDAL cheatsheet - Derek Watkins (NYTimes)** ← *see "Raster Operations"* * **Processing Satellite Imagery (Mapbox)** ← *extra helpful* * Dan's GDAL scripts * Pansharpening Landsat 7 with Dan's scripts * Convert Landsat 8 GeoTIFF images into RGB pan-sharpened JPEGs. * Charlie Lloyd's (Mapbox) Rake Task ##### Orfeo - More advanced. Do things like atmospheric correction and NDVI. * Pansharpening with Orfeo * ### GIS ##### QGIS - Open Source alternative to ArcGIS * Install ``` brew tap homebrew/science brew install qgis24 --with-grass7 --with-orfeo # May need: > ~/.bash_profile ``` * QGIS 2.0: Composition Color RGB for Landsat-8 (translate from Portuguese) ## Creating Web Imagery * GDAL2Tiles * MapTiler * TileMill * SimpleTiles / SimplerTiles (Ruby) ## Storytelling Tools * JuxtaposeJS - Compare two images * Leaflet (see tileLayer or imageOverlay) * Leaflet.Sync * Google Earth * Google Earth Tutorial for GeoTiff ## Storytelling from Space, In the wild * Losing Ground (ProPublica / The Lens) * Disappering Mississppi Delta (SkyTruth) * Long Swath * Long Swath Gigapan: * NYTimes: A Rogue State Along Two Rivers * NYTimes: Assessing the Damage and Destruction in Gaza * NYTimes: ISIS in Maps and Photos * Monitoring Oil Reserves from Space * Animated Gifs of Earth over time (Google Earth Engine) * Hurricaine Sandy before/after * The Continuing Crisis in Northern Iraq * Counting Whales from Space * Using Repeat Satellite Imagery to Track Tank Movements * Gaza: X-ray of a disaster * Google Earth Engine ## Misc Geospatial Tools * Web interface for CS2CS, quickly convert coordinates * Find the EPSG from WKT from gdalinfo * Geojson.io - Draw geographic things, get info and export * Noah Veltman's geotools - Easily get bounding boxes and such ## Bonus * USGS land cover classification data - 1992-2011: - 70's: * Installing Open Source geographic software * Creating the Blue Marble * Rainbow planes * Global Forest Change from Lndsat and MODIS * Carlton Complex Wildfire, Washington