map-projection

GMT (Generic Mapping Tools) shell scripts drawing a world geological-features map: hotspots, mid-ocean ridges, transform faults, subduction trenches, ophiolites, volcanoes and Large Igneous Provinces on an Eckert equal-area projection centred on the Pacific, with a legend.

GMT (Generic Mapping Tools) shell scripts demonstrating coastline-based raster clipping (pscoast clip paths) to render a colour geoid over the ocean and gray-shaded relief over masked land, for the Kuril-Kamchatka and Mariana Trenches.

GMT (Generic Mapping Tools) shell scripts mapping ETOPO1 bathymetry of the Mariana Trench in three contrasting map projections: Cassini transverse cylindrical (-JC), Cylindrical Equal-Area Gall-Peters (-JY) and Polyconic (-JPoly), with colour scale, contours, toponymy and geometric-shape annotation.

GMT (Generic Mapping Tools) shell scripts producing bathymetric contour (isobath) maps of ocean trenches from ETOPO relief, with annotated index contours on an Albers equal-area conic projection and study-area outlines.

GMT (Generic Mapping Tools) shell script drawing a global tectonic map: plate boundaries (PB2002) with rotation poles and boundary steps, GSFML seafloor fabric (fracture zones, magnetic lineation picks) and subducting-slab depth contours, on an Eckert IV equal-area projection centred on the Pacific.

GMT (Generic Mapping Tools) shell scripts mapping total marine sediment thickness from the NOAA/NGDC GlobSed grid over ocean basins, seas and trenches, with turbo colour-shaded grids, isopach contours, coastlines and cartographic layout.

Over 70 GMT (Generic Mapping Tools) shell scripts mapping marine free-air and Bouguer gravity anomalies from the Sandwell/Smith satellite-altimetry gravity grid (CryoSat-2, Jason-1) over countries, seas and ocean trenches, with colour-shaded grids, curvature/vertical-gradient variants and cartographic layout.

GDAL command-line shell scripts for geospatial raster processing: reprojecting and warping grids between coordinate reference systems and map projections (gdalwarp), format conversion between NetCDF, GeoTIFF and binary (gdal_translate), and raster metadata inspection (gdalinfo).

Collection of ~180 GMT (Generic Mapping Tools) shell scripts producing shaded-relief topographic and bathymetric maps of countries and regions worldwide from global DEMs (ETOPO1, GEBCO, SRTM, GLOBE), with DCW country clipping, custom CPTs, contours and cartographic layout.

Over 80 GMT (Generic Mapping Tools) shell scripts mapping TerraClimate climate variables per country (temperature extremes, precipitation, PDSI drought index, soil moisture, PET/AET, runoff, shortwave radiation, snow-water equivalent, vapour pressure/deficit, wind) from NetCDF grids, with DCW country clipping, contours and cartographic layout.

GMT (Generic Mapping Tools) shell script building a land/water mask grid from GSHHG shorelines with grdlandmask (land = 1, ocean = NaN) and rendering it over an ETOPO1 relief basemap for the Kuril-Kamchatka Trench area.

GMT (Generic Mapping Tools) shell script mapping the geographic layout of 25 cross-section profiles along the Mariana Trench, plotting profile transects as oriented vectors on an Albers equal-area contour basemap from ETOPO1 relief.

GMT (Generic Mapping Tools) shell scripts producing oblique Mercator (-JOc) coastline basemaps rotated to follow ocean-trench axes / great-circle lines, with graticules and toponymy, for trench regions and a world overview.

GMT (Generic Mapping Tools) shell scripts mapping marine magnetic anomalies from the EMAG2 (v3) and WDMAM global magnetic-anomaly grids over ocean basins and trenches, with cyclic colour-shaded grids, contours and cartographic layout.

GMT (Generic Mapping Tools) shell scripts mapping the age of oceanic lithosphere, seafloor-spreading half-rates, spreading asymmetry and age uncertainty from the NOAA/NGDC (Muller et al.) ocean crustal-age grid over ocean basins, with turbo colour-shaded grids and cartographic layout.

GMT (Generic Mapping Tools) shell script drawing a coastline globe map in an orthographic azimuthal (globe-view) projection centred on the North Pacific, as a locator / projection demonstration.

GMT (Generic Mapping Tools) shell scripts mapping geoid undulation from EGM global gravity models (EGM2008, EGM96) over countries, seas and ocean trenches, with colour-shaded grids, geoid contours, conic/Eckert projections and a global geoid inset.

GMT (Generic Mapping Tools) shell scripts demonstrating coastline-based raster clipping (pscoast clip paths) to render one dataset over the ocean and a differently styled, gray-shaded version over masked land, for geoid and relief maps of ocean-trench regions.

GMT (Generic Mapping Tools) shell scripts drawing oblique Mercator (-JOc) coastline basemaps of the Kuril-Kamchatka and Mariana Trenches, with the projection axis aligned to each trench and graticules, scale bars and toponymy.