High-resolution satellite-gauge merged precipitation climatologies of the tropical Andes

A set of 130 digital precipitation maps of the tropical Andes, covering Colombia, Ecuador and Peru at a 5km resolution. The maps represent different realizations of mean precipitation totals of the period 1981-2010 using different satellite-gauge merging methods. The work draws on a large database of 723 rain gauges and the full 5km Tropical Rainfall Measuring Mission (TRMM) Precipitation Radar (TPR) record from 1998 to 2014. Each map is approximately 1MB

Publication date: 2016-01-14

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Access and use conditions

This resource is made available under the terms of the Open Government Licence

© NERC/ Bastian Manz

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Where/When

Study area
Temporal extent
1981-01-01    to    2014-12-31

Quality

Lineage
TRMM Precipitation Radar data, product 2A25, was obtained from NASA for the period Jan 1998 – Oct 2014. Individual orbital scans were converted into time-series and re-projected onto a regular UTM grid (5 km) in R (statistical software), which allowed averaging over time to obtain mean monthly and annual climatological rainfall fields (regular raster grids) from the TPR (in R). Monthly or daily rain gauge time-series for the period 1981-2010 were obtained from IDEAM (Colombia), INAMHI (Ecuador), SENAMHI (Peru), SENAMHI (Bolivia) and NOAA (USA) and mean monthly and annual climatological values were determined for every gauge using a bespoke R script. Gauging station coordinates are re-projected into UTM (in R). Satellite-gauge merging as described in the supporting information was conducted using bespoke R scripts. Following generation of the final merged climatological precipitation fields (regular raster grids) these are converted from R to GeoTIFF (.tif).

Authors

Manz, B.
Imperial College London
Buytaert, W.
Imperial College London
Zulkafli, Z.
Imperial College, Universiti Putra Malaysia
Lavado, W.
Servicio Nacional de Meteorología e Hidrología (SENAMHI) Peru
Willems, B.
Universidad Nacional Mayor de San Marcos
Robles L. A.
Universidad Nacional Mayor de San Marcos
Rodríguez-Sánchez, J.-P.
Universidad de los Andes

Other contacts

Publisher
NERC Environmental Information Data Centre
Custodian
Environmental Information Data Centre
Distributor
Environmental Information Data Centre

Spatial

Spatial representation type
Raster
Spatial reference system
WGS 84 longitude-latitude (CRS:84)

Keywords

Topic categories
Climatology / Meteorology / Atmosphere
INSPIRE Theme
Atmospheric Conditions and meteorological geographical features
Place keywords
Colombia
Ecuador
Peru

Dataset identifiers

https://catalogue.ceh.ac.uk/id/74a588cc-723c-4a35-ac0c-223f5b92ee36
doi:10.5285/74a588cc-723c-4a35-ac0c-223f5b92ee36

Metadata

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Environmental Information Data Centre
Last updated
2018-01-19T16:02:28