GPM GV · VN SR–GR / IMERG Explorer

GPM Ground Validation / VN ExplorerNative DPR–ground radar matchups · optional IMERG

Ground radar

Radar site

Elevation sweep

Footprints colored by

Require valid paired GR and DPR values

Opacity85%

Native DPR/GMI pixels, independent of matched GR footprints.

Choose an overpass to load layers.

Opacity75%

Single GR volumes compared with IMERG Final V07 half-hourly rates; these are not 30-minute GR composites.

GR grid height

GR rain-rate algorithm

Color cells by

Require ≥10% valid GR coverage

Cells are drawn at their actual geographic 0.1° bounds. Overlapping radar-volume cells are consolidated by site/interval.

Colormap

DPR/GR comparison values retain their original units. GR log₁₀(Nw) is compared with DPR dBNw/10.

Loading VN catalog…Awaiting published matchup data

Loading catalog…