Not logged in
Data Publisher for Earth & Environmental Science

Bumke, Karl; König-Langlo, Gert; Kinzel, Julian; Schröder, Marc (2016): Precipitation over sea: Validation against shipboard in-situ measurements. PANGAEA,, Supplement to: Bumke, K et al. (2016): HOAPS and ERA-Interim precipitation over the sea: validation against shipboard in situ measurements. Atmospheric Measurement Techniques, 9(5), 2409-2423,

Always quote above citation when using data! You can download the citation in several formats below.

RIS CitationBibTeX CitationShow MapGoogle Earth

The satellite derived HOAPS (Hamburg Ocean Atmosphere Parameters and Fluxes from Satellite data) and ECMWF (European Centre for Medium-Range Weather Forecasts) ERA-Interim reanalysis data sets have been validated against in-situ precipitation measurements from ship rain gauges and optical disdrometers over the open-ocean by applying a statistical analysis for binary forecasts. For this purpose collocated pairs of data were merged within a certain temporal and spatial threshold into single events, according to the satellites' overpass, the observation and the forecast times. HOAPS detects the frequency of precipitation well, while ERA-Interim strongly overestimates it, especially in the tropics and subtropics. Although precipitation rates are difficult to compare because along-track point measurements are collocated with areal estimates and the numbers of available data are limited, we find that HOAPS underestimates precipitation rates, while ERA-Interim's Atlantic-wide average precipitation rate is close to measurements. However, regionally averaged over latitudinal belts, there are deviations between the observed mean precipitation rates and ERA-Interim. The most obvious ERA-Interim feature is an overestimation of precipitation in the area of the intertropical convergence zone and the southern sub-tropics over the Atlantic Ocean. For a limited number of snow measurements by optical disdrometers it can be concluded that both HOAPS and ERA-Interim are suitable to detect the occurrence of solid precipitation.
Median Latitude: 36.374541 * Median Longitude: 116.890243 * South-bound Latitude: -70.520000 * West-bound Longitude: 10.150000 * North-bound Latitude: 87.070000 * East-bound Longitude: -8.710000
Date/Time Start: 1995-07-07T18:45:00 * Date/Time End: 2007-05-01T11:42:00
3 datasets

Download Data

Download ZIP file containing all datasets as tab-delimited text (use the following character encoding: )