Shape Census is a Python tool for analyzing grids of binary data to identify and count connected shapes formed by adjacent '1's. It processes grids from text files, handles varying grid sizes, and efficiently identifies distinct shapes. Ideal for data analysts and puzzle enthusiasts interested in uncovering hidden patterns in binary grids.

binary-data shape python-tools grid-processing adjacency-algorithems digital-shape-analysis

• Updated Jan 25, 2025
• Python

GMT (Generic Mapping Tools) shell scripts building 3D perspective relief models of the Kuril-Kamchatka Trench: grdview topographic/bathymetric meshes from ETOPO relief overlaid on 2D EGM96 geoid contours, rendered at two perspective azimuths (135 and 165 degrees).

cartography geoscience generic-mapping-tools digital-elevation-model gmt shell-scripting 3d-visualization topography geomorphometry grdview bathymetry geoid terrain-modeling geospatial-visualization perspective-view marine-geophysics grid-processing ocean-trenches etopo1 kuril-kamchatka-trench

• Updated Sep 12, 2026
• Shell

GMT (Generic Mapping Tools) shell scripts extracting and stacking serial cross-track bathymetric profiles across the Kuril-Kamchatka Trench (north and south segments) with grdtrack, plotting median stacked profiles with error envelopes over a shaded-relief basemap.

cartography geoscience generic-mapping-tools digital-elevation-model gmt shell-scripting geomorphology geomorphometry bathymetry cross-section terrain-analysis geospatial-visualization marine-geophysics grid-processing ocean-trenches etopo1 bathymetric-profiles grdtrack profile-stacking kuril-kamchatka-trench

• Updated Sep 12, 2026
• Shell

GMT (Generic Mapping Tools) shell scripts mapping ten TerraClimate climate variables over Mongolia for 2019 (min/max temperature, precipitation, soil moisture, wind, solar radiation, SWE, vapour pressure, VPD, PDSI drought index) from NetCDF grids with DCW country clipping. Figures for Lemenkova, Geosciences 2022, 12(3):140.

cartography temperature netcdf generic-mapping-tools shell-script climate-data soil-moisture gmt precipitation mongolia geospatial-visualization pdsi terraclimate drought-index grid-processing climate-mapping

• Updated Sep 14, 2026
• Shell

GMT (Generic Mapping Tools) shell script processing the GLOBE DEM (Global Land One-km Base Elevation, 30 arc-second): converting raw 16-bit signed-integer binary tiles to GMT .grd grids with xyz2grd, batch mosaicking to a global XYZ, and rendering the relief.

cartography geospatial geoscience netcdf generic-mapping-tools digital-elevation-model remote-sensing batch-processing gmt data-conversion shell-scripting topography geomorphometry raster-processing terrain-analysis grid-processing globe-dem xyz2grd binary-grid global-relief

• Updated Sep 12, 2026
• Shell

GMT (Generic Mapping Tools) shell scripts applying histogram equalization to topography/bathymetry grids with grdhisteq, comparing original, equalized, Gaussian-normalized and quadratic transforms of ETOPO1 relief in multi-panel figures.

cartography image-processing geoscience generic-mapping-tools scientific-visualization digital-elevation-model data-normalization gmt shell-scripting topography geomorphometry contrast-enhancement histogram-equalization image-enhancement bathymetry raster-processing geospatial-visualization grid-processing etopo1 grdhisteq

• Updated Sep 12, 2026
• Shell

GMT (Generic Mapping Tools) shell script converting a regularly-spaced XYZ bathymetry table directly to a NetCDF grid with xyz2grd (exact grid registration, no interpolation), then contour-mapping the result for the Kuril-Kamchatka Trench.

cartography geoscience netcdf generic-mapping-tools digital-elevation-model gmt data-conversion shell-scripting gridding bathymetry raster-processing geospatial-visualization xyz-data marine-geophysics grid-processing contour-mapping ocean-trenches xyz2grd binary-grid grid-conversion

• Updated Sep 12, 2026
• Shell

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.

cartography geoscience generic-mapping-tools scientific-visualization digital-elevation-model gmt shell-scripting geomorphometry bathymetry map-projection cross-section terrain-analysis geospatial-visualization marine-geophysics grid-processing ocean-trenches etopo1 mariana-trench profile-location albers-projection

• Updated Sep 12, 2026
• Shell

GMT shell scripts mapping eleven TerraClimate climate variables over Botswana (temperature, precipitation, soil moisture, PET/AET, radiation, vapour pressure, VPD, wind, PDSI) from NetCDF grids, plus a topographic base map. Figures for Lemenkova, ISPRS Int. J. Geo-Inf. 2022, 11(9):473.

evapotranspiration cartography temperature netcdf generic-mapping-tools shell-script climate-data soil-moisture gmt precipitation botswana geospatial-visualization pdsi terraclimate drought-index grid-processing climate-mapping

• Updated Sep 14, 2026
• Shell

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.

geoscience generic-mapping-tools geophysics clipping gmt shell-scripting topography clip-path bathymetry geoid map-projection raster-processing geospatial-visualization land-sea-mask marine-geophysics grid-processing ocean-trenches coastline-masking raster-masking pscoast

• Updated Sep 12, 2026
• Shell

GMT (Generic Mapping Tools) shell scripts computing the 2D-FFT spectral coherence between marine gravity and bathymetry grids (isostasy / flexural response) with grdfft, plus multi-panel maps of bathymetry, geoid, free-air gravity and vertical gravity gradient.

geoscience generic-mapping-tools geophysics scientific-visualization geodesy fft coherence gmt spectral-analysis shell-scripting isostasy bathymetry gravity-anomaly geospatial-visualization potential-field marine-geophysics grid-processing free-air-anomaly flexural-rigidity cross-spectrum

• Updated Sep 12, 2026
• Shell

GMT (Generic Mapping Tools) shell script building a faceted side-by-side comparison figure: two map panels contrasting gridding algorithms (xyz2grd direct conversion vs nearneighbor interpolation) of the same Kuril-Kamchatka Trench bathymetry, with shared captions and title.

cartography geoscience data-visualization generic-mapping-tools nearest-neighbor gmt shell-scripting small-multiples gridding bathymetry subplots geospatial-visualization panel-layout faceted-plot marine-geophysics grid-processing contour-mapping ocean-trenches xyz2grd interpolation-comparison

• Updated Sep 12, 2026
• Shell

GMT (Generic Mapping Tools) shell scripts gridding scattered XYZ bathymetry with the nearneighbor local nearest-neighbour / sector-search algorithm and contour-mapping the result for the Kuril-Kamchatka and Mariana Trenches.

cartography geoscience netcdf generic-mapping-tools digital-elevation-model nearest-neighbor gmt geostatistics shell-scripting gridding bathymetry geospatial-visualization spatial-interpolation xyz-data marine-geophysics grid-processing contour-mapping ocean-trenches nearneighbor sector-search

• Updated Sep 12, 2026
• Shell

Over 30 GMT (Generic Mapping Tools) shell scripts building 3D perspective relief models: grdview-rendered topographic and bathymetric meshes and surfaces from ETOPO/GEBCO grids at set azimuth and elevation, often overlaid on 2D geoid contours, for ocean trenches, seas and countries.

cartography geoscience generic-mapping-tools geophysics scientific-visualization digital-elevation-model gmt shell-scripting 3d-visualization topography geomorphometry grdview bathymetry terrain-modeling geospatial-visualization gebco perspective-view grid-processing ocean-trenches etopo1

• Updated Sep 12, 2026
• Shell

GMT (Generic Mapping Tools) shell scripts rendering 3D bar histograms of bathymetric depth values: relief grids converted to XYZ (grd2xyz) and drawn as perspective 3D columns with psxyz to show the spatial depth distribution of ocean trenches.

cartography geoscience data-visualization generic-mapping-tools digital-elevation-model gmt shell-scripting 3d-visualization geomorphometry bathymetry geospatial-visualization perspective-view marine-geophysics 3d-histogram grid-processing depth-distribution ocean-trenches etopo1 psxyz grd2xyz

• Updated Sep 12, 2026
• Shell

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.

cartography geoscience generic-mapping-tools geophysics scientific-visualization gmt shell-scripting bathymetry geomagnetism magnetics map-projection plate-tectonics magnetic-anomaly geospatial-visualization potential-field marine-geophysics grid-processing ocean-basins emag2 wdmam

• Updated Sep 12, 2026
• Shell

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.

cartography geoscience generic-mapping-tools geophysics scientific-visualization gmt shell-scripting geodynamics bathymetry lithosphere map-projection plate-tectonics geospatial-visualization marine-geophysics grid-processing ocean-basins oceanic-crust crustal-age seafloor-spreading spreading-rate

• Updated Sep 12, 2026
• Shell

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.

evapotranspiration cartography geoscience netcdf generic-mapping-tools scientific-visualization climate-data soil-moisture gmt shell-scripting environmental-monitoring climatology precipitation map-projection geospatial-visualization pdsi terraclimate drought-index grid-processing climate-mapping

• Updated Sep 12, 2026
• Shell

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.

cartography geoscience generic-mapping-tools geophysics scientific-visualization gmt shell-scripting topography shoreline bathymetry map-projection raster-processing geospatial-visualization land-sea-mask land-mask gshhg grid-processing coastline-masking raster-masking grdlandmask

• Updated Sep 12, 2026
• Shell

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.

cartography geoscience generic-mapping-tools digital-elevation-model gmt shell-scripting geomorphometry bathymetry equal-area-projection map-projection geospatial-visualization cylindrical-projection marine-geophysics grid-processing ocean-trenches etopo1 mariana-trench cassini-projection gall-peters-projection polyconic-projection

• Updated Sep 12, 2026
• Shell