Topographic Datasets (dataset.topo)

pyrocko.dataset.topo offers access to gridded topogrophy data from the following sources. Both modules cache downloaded data for later use.

• pyrocko.dataset.topo.etopo1 access NOAA ETOPO1 Global Relief Map (https://www.ngdc.noaa.gov/mgg/global/)
• pyrocko.dataset.topo.srtmgl3 offers access to NASA Shuttle Radar Topography Mission Global 30 arc second (SRTMGL3) topography data (https://lpdaac.usgs.gov/dataset_discovery/measures/measures_products_table/srtmgl3_v003).

exception UnknownDEM

elevation(lat, lon)

Get elevation at given point.

Tries to use SRTMGL3, falls back to ETOPO01 if not available.

dataset.topo.etopo1

class ETOPO1(name='ETOPO1', data_dir='/usr/local/lib/python3.7/dist-packages/pyrocko/dataset/topo/data/ETOPO1', base_fn='etopo1_ice_g_i2', raw_data_url='https://mirror.pyrocko.org/www.ngdc.noaa.gov/mgg/global/relief/ETOPO1/data/ice_surface/grid_registered/binary/%s.zip')

download()

make_tiles()

get_tile(itx, ity)

dataset.topo.srtmgl3

exception AuthenticationRequired

class SRTMGL3(name='SRTMGL3', data_dir='/usr/local/lib/python3.7/dist-packages/pyrocko/dataset/topo/data/SRTMGL3', raw_data_url='https://mirror.pyrocko.org/e4ftl01.cr.usgs.gov/MEASURES/SRTMGL3.003/2000.02.11')

tilename(itx, ity)

available_tilenames()

tilefilename(tilename)

tilepath(tilename)

download_tile(tilename)

download()

get_tile(itx, ity)