Parsivel2 Precipitation Observations from the Southern Ocean
Authors
Mary Jane Bartholomew — Brookhaven National Laboratory
Scott Giangrande — Brookhaven National Laboratory
Die Wang — Brookhaven National Laboratory
Category
ARM field campaigns – Results from recent ARM field campaigns
Description
Disdrometer observations from the ARM Program have made valuable contributions to our understanding of the character of rainfall in previously under-sampled regions; for example the Eastern North Atlantic and the Amazon Basin. They have also helped to provide constraints on the calibration of ARM Radar Wind Profiliers at these locations. Each location has its own filtering challenges needed to obtain the best Parsivel2 results. The deployment of one of ARM’s Parsivel2 disdrometers during the Measurement of Aerosols, Radiation and Clouds over the Southern Ocean campaign (MARCUS) was most complex filtering challenge yet due to the proximity of the ship superstructure and ship exhaust. This analysis will provide a first look at 1) the extent of useful/filtered results, 2) types of precipitation (drizzle, rain, snow, etc.) observed, 3) classification of Southern Ocean rainfall in terms of convective vs stratiform events if possible and 4) characteristics of the rainfall as compared to other oceanic regions.
