The ER-2 Doppler radar (EDOP) data were collected in support of The Tropical Cloud Systems and Processes mission (TCSP), conducted by NASA and the National Oceanic and Atmospheric Administration (NOAA), in Costa Rica throughout July 2005. The TCSP mission collected data for research and documentation of "cyclogenesis", the interaction of temperature, humidity, precipitation, wind and air pressure that creates ideal birthing conditions for tropical storms, hurricanes and related phenomena. The goal of this mission was to help us better understand how hurricanes and other tropical storms form and intensify. These data are available from July 2, 2005 through July 27, 2025 in netCDF-4 format.