Arequipa Climate Maps: 30 Years of Gridded Precipitation and Temperature Data

30 years of annual, monthly, and daily gridded climate maps for precipitation and maximum and minimum air temperature from January 1, 1988, to December 31, 2017. The dataset was created by the Center for Sustainable Watershed Management of the Arequipa Nexus Institute at Purdue University using weather station data from SENAMHI and NOAA's GSOD, interpolated with topography data from ALOS World 3D DEM.

Use Cases

• Modeling agricultural water demand based on 30 years of precipitation and temperature maps.
• Analyzing climate trends and variability in the Arequipa region based on gridded data.
• Supporting hydrological studies of managed water systems using spatially interpolated climate variables.
• Calibrating regional climate models using terrain-sensitive interpolation methods described.

Strengths

• Covers a 30-year time series from 1988 to 2017.
• Includes three temporal resolutions: annual, monthly, and daily.
• Data underwent preprocessing for implausible value removal, gap filling, and inhomogeneity detection.
• Uses a Regression Thin-Plate Splines method with region-specific Polynomial and Potential Regression Models.

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• Last update date is unknown; freshness unverified.
• Row count and file size are unknown, which may limit suitability assessment.

Provenance

Source

Servicio Nacional de Meteorología e Hidrología del Perú (SENAMHI) and NOAA's Global Summary of the Day (GSOD).

Collection Method

Weather station data spatially interpolated using topography covariates from ALOS World 3D DEM via a Regression Thin-Plate Splines (RTPS) method.

Time Range

January 1, 1988 to December 31, 2017

Geography

Arequipa department, Peru