Digital Object Identifier
Entry information for HOAPS_V002

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DOI for scientific and technical data

10.5676/EUM_SAF_CM/HOAPS/V002

Title

Hamburg Ocean Atmosphere Parameters and Fluxes from Satellite Data - HOAPS 4.0

Citation

Andersson, Axel; Graw, Kathrin; Schröder, Marc; Fennig, Karsten; Liman, Julian; Bakan, Stephan; Hollmann, Rainer; Klepp, Christian (2017): Hamburg Ocean Atmosphere Parameters and Fluxes from Satellite Data - HOAPS 4.0, Satellite Application Facility on Climate Monitoring, DOI:10.5676/EUM_SAF_CM/HOAPS/V002, https://doi.org/10.5676/EUM_SAF_CM/HOAPS/V002.

Publisher

Satellite Application Facility on Climate Monitoring (CM SAF)

Publication year

2017

Author(s)

Andersson, Axel; Graw, Kathrin; Schröder, Marc; Fennig, Karsten; Liman, Julian; Bakan, Stephan; Hollmann, Rainer; Klepp, Christian

Contributor(s)

Werscheck, Martin (ProjectLeader); Fuchs, Petra (DataManager)

Description

The Hamburg Ocean Atmosphere Parameters and Fluxes from Satellite data record (HOAPS) is a completely satellite based climatology of precipitation, evaporation and freshwater budget (evaporation minus precipitation) as well as of latent heat flux, total column water vapour, near surface specific humidity and near surface wind speed over the global ice free oceans. All variables are derived from recalibrated and intercalibrated measurements from SSM/I and SSMIS passive microwave radiometers, except for the SST, which is taken from AVHRR measurements. The data record includes multi-satellite averages and an efficient sea ice detection procedure. Main changes in this version are a prolonged time series, now containing data for the time period from July 1987 until December 2014, the utilisation of an updated SSM/I and SSMIS FCDR, the provision of uncertainty estimates for latent heat flux, evaporation, near surface specific humidity and near surface wind speed and the implementation of a 1D-Var retrieval scheme for the retrieval of total column water vapour and near surface wind speed. Other retrieval algorithms remain unchanged compared to HOAPS 3.2. All HOAPS products have global coverage, i.e., within ±180° longitude and ±80° latitude and are only defined over the ice-free ocean surface. The products are available as monthly averages and 6-hourly composites on a regular latitude/longitude grid with a spatial resolution of 0.5° x 0.5° degrees. Along with the data and the uncertainty estimates, a comprehensive documentation including user manual, algorithm descriptions, reprocessing layout and extensive validation studies, are provided.

Format

NetCDF v4

Version

4.0

Size

202 GiB

Documentation

Related publications

Related Data Records

Comment

For parameters marked with ** you will need to apply for access rights separately by editing your "User profile" since this operational release of HOAPS from CM SAF does not include the marked parameters.

Data record details and ordering

Products from Defense Meteorological Satellite Program (DMSP)

Difference in humidity (SHD)
Evaporation-Precipitation (EMP)
Evaporation (EVA)
Latent heat flux (LHF)
Latent heat transfer coefficient (LTC)
Near surface specific humidity (NSH)
Near surface wind speed (SWS)
Precipitation (PRE)
Sea surface saturation specific humidity (SSH)
Sea surface temperature (SST)
Sensible heat flux at sea surface (SHF)
Surface net longwave radiation (SNL)
Vertically integrated total (ice + liquid) water (TWP)
Vertically integrated water vapour (HTW)

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