Arequipa Climate Maps – Normals

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By Andre Geraldo de Lima Moraes1, Laura C Bowling1, Carlos Renzo Zeballos Velarde2, Keith A Cherkauer1

1. Purdue University 2. Universidad Nacional de San Agustin de Arequipa - UNSA

Arequipa Climate Maps – Normals, is a dataset containing 30-year averages of annual and monthly climatology derived from observations of daily air temperature, and precipitation for the Arequipa department in Peru.

Additional materials available

Version 1.0 - published on 20 Dec 2019 doi:10.4231/490D-HC66 - cite this

Licensed under CC0 1.0 Universal

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Description

Climate is a powerful driver of agricultural and natural systems, and spatial climate data sets in digital form are currently in great demand. This is especially true in the Arequipa department of Peru, a region with low seasonal precipitation, significant topographic variability, and high demand for water use in highly managed water systems. This dataset contains 30-year average annual and average annual monthly maps of cumulative precipitation, and average, minimum and maximum daily air temperature from January 1, 1988 to December 31, 2017. It was created using weather station data from the Servicio Nacional de Meteorología e Hidrología del Perú (SENAMHI) and National Ocean and Atmospheric Administration’s (NOAA) Global Summary of the Day (GSOD). Topography data, used as covariates, came from ALOS World 3D DEM. Weather data went through extensive preprocessing for removal of implausible values and data gap filling using a nearest neighbor method bounded by elevation. Maps were created using Regression Kriging (RK), that made use of Regression Models specifically developed for the region.

A manuscript entitled “Terrain sensitive climate maps for Arequipa region, Peru,” is under development and will bring more information about the development of this dataset.

This dataset was developed by the  Center for Sustainable Watershed Management of the Arequipa Nexus Institute (https://www.purdue.edu/discoverypark/arequipa-nexus/en/index.php)

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This is the first version of this dataset.

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