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

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

Manz, B.; Buytaert, W.; Zulkafli, Z.; Lavado, W.; Willems, B.; Robles L. A.; Rodríguez-Sánchez, J.-P. (2016)
https://doi.org/10.5285/74a588cc-723c-4a35-ac0c-223f5b92ee36

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

You must cite: Manz, B.; Buytaert, W.; Zulkafli, Z.; Lavado, W.; Willems, B.; Robles L. A.; Rodríguez-Sánchez, J.-P. (2016). High-resolution satellite-gauge merged precipitation climatologies of the tropical Andes. NERC Environmental Information Data Centre. https://doi.org/10.5285/74a588cc-723c-4a35-ac0c-223f5b92ee36

 

© 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

Imperial College London
Imperial College London
Imperial College, Universiti Putra Malaysia
Servicio Nacional de Meteorología e Hidrología (SENAMHI) Peru
Universidad Nacional Mayor de San Marcos
Universidad Nacional Mayor de San Marcos
Universidad de los Andes

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

Record identifier
74a588cc-723c-4a35-ac0c-223f5b92ee36
Record created by
Record last updated
2017-10-16T12:15:24