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wdc-climate.de:2147311 eng; USA collection HOAPS3_DAILY Axel Andersson University of Hamburg http://www.mi.uni-hamburg.de/ pointOfContact Dr. Stephan Bakan Max Planck Institute for Meteorology http://www.mpimet.mpg.de pointOfContact 2007-05-22T14:19:19 ISO 19115 ISO 19115-2:2009 Hamburg Ocean Atmosphere Parameters and Fluxes from Satellite Data - HOAPS-3 - twice daily composite 2007-08-30 publication 1 HOAPS3_DAILY doi:10.1594/WDCC/HOAPS3_DAILY Prof. Dr. Hartmut Grassl University of Hamburg http://www.mi.uni-hamburg.de/ principalInvestigator Dr. Christian Klepp University of Hamburg http://www.mi.uni-hamburg.de/ Email: christian.klepp@uni-hamburg.de originator Dr. Stephan Bakan Max Planck Institute for Meteorology http://www.mpimet.mpg.de/ Email: stephan.bakan@mpimet.mpg.de originator Axel Andersson University of Hamburg http://www.mi.uni-hamburg.de/ Email: axel.andersson@zmaw.de author Dr. Stephan Bakan Max Planck Institute for Meteorology http://www.mpimet.mpg.de/ Email: stephan.bakan@mpimet.mpg.de author Karsten Fennig Met Office Hadley Centre http://www.metoffice.gov.uk Email: karsten.fennig@metoffice.gov.uk author Prof. Dr. Hartmut Grassl University of Hamburg http://www.mi.uni-hamburg.de/ author Dr. Christian Klepp University of Hamburg http://www.mi.uni-hamburg.de/ Email: christian.klepp@uni-hamburg.de author Joerg Schulz Deutscher Wetterdienst (ZAK) n/a author WDC Climate at DKRZ publisher The Hamburg Ocean Atmosphere Parameters and Fluxes from Satellite Data (HOAPS) set is a completely satellite based climatology of precipitation, turbulent heat fluxes and freshwater budget (evaporation minus precipitation) as well as related athmospheric state variables over the global ice free oceans. All variables are derived from SSM/I passive microwave radiometers, except for the SST, which is taken from AVHRR measurements. The dataset includes multi-satellite averages, inter-sensor calibration, and an efficient sea ice detection procedure. Changes in this version are a longer time series, now containing data from 1987 to 2005, a new neural network based precipitation algorithm, and inclusion of the RSMAS/NODC Pathfinder Version 5 SST fields. Additionally a new 85 GHz synthesis procedure has been implemented, making a continuous time series for all parameters for the whole time series possible. This dataset contains 1 degree twice daily globally gridded multi-satellite composite products, providing high temporal resolution. Each grid-cell contains data from only one satellite pass, there is no average from two or more satellites. Early passes are overwritten by later passes. This method provides more spatial homogeneity than averaging all available data. The fields are stored for 0-12 and 12-24 UTC. Timesteps in the data files are at 0 UTC (0-12 UTC overpasses) and 12 UTC (12-24 UTC overpasses). Each grid-cell contains the average of data from the satellite that passed this gridbox closest to 12 and 24 UTC, respectively. Other gridded data sets available are pentad (5-day) and monthly means on a global 0.5 deg. x 0.5 deg. grid. For more information see http://www.hoaps.org/. Dr. Stephan Bakan Max Planck Institute for Meteorology http://www.mpimet.mpg.de pointOfContact NetCDF SSM/I air-sea-fluxes remote sensing satellite scientific use: For scientific use only eng; USA -180.0 180.0 -80.0 80.0 calendrical 1987-07-09 2005-12-31 sea_surface_temperature Sea surface temperature is usually abbreviated as "SST". It is the temperature of sea water near the surface (including the part under sea-ice, if any), and not the skin temperature, whose standard name is surface_temperature. For the temperature of sea water at a particular depth or layer, a data variable of sea_water_temperature with a vertical coordinate axis should be used. [CF-Standard Name]; unit: degC lwe_precipitation_rate "lwe" means liquid water equivalent. [CF-Standard Name]; unit: mm d-1 surface_specific_humidity The surface called "surface" means the lower boundary of the atmosphere. "specific" means per unit mass. Specific humidity is the mass fraction of water vapor in (moist) air. [CF-Standard Name]; unit: g kg-1 surface_net_upward_longwave_flux The surface called "surface" means the lower boundary of the atmosphere. "longwave" means longwave radiation. "Upward" indicates a vector component which is positive when directed upward (negative downward). Net upward radiation is the difference between radiation from below (upwelling) and radiation from above (downwelling). In accordance with common usage in geophysical disciplines, "flux" implies per unit area, called "flux density" in physics.[CF-Standard Name]; unit: W m-2 surface_upward_latent_heat_flux The surface called "surface" means the lower boundary of the atmosphere. "Upward" indicates a vector component which is positive when directed upward (negative downward). The surface latent heat flux is the exchange of heat between the surface and the air on account of evaporation (including sublimation). In accordance with common usage in geophysical disciplines, "flux" implies per unit area, called "flux density" in physics.[CF-Standard Name]; unit: W m-2 surface_upward_sensible_heat_flux The surface called "surface" means the lower boundary of the atmosphere. "Upward" indicates a vector component which is positive when directed upward (negative downward). The surface sensible heat flux, also called "turbulent" heat flux, is the exchange of heat between the surface and the air by motion of air. In accordance with common usage in geophysical disciplines, "flux" implies per unit area, called "flux density" in physics.[CF-Standard Name]; unit: W m-2 atmosphere_cloud_condensed_water_content "condensed_water" means liquid and ice. "Content" indicates a quantity per unit area. The "atmosphere content" of a quantity refers to the vertical integral from the surface to the top of the atmosphere. For the content between specified levels in the atmosphere, standard names including content_of_atmosphere_layer are used. [CF-Standard Name]; unit: kg m-2 lwe_water_evaporation_rate "lwe" means liquid water. "Water" means water in all phases. Evaporation is the conversion of liquid or solid into vapor. (The conversion of solid alone into vapor is called "sublimation".)[CF-Standard Name]; unit: mm d-1 specific saturation humidity at sea surface sea surface saturation specific humidity; unit: g kg-1 atmosphere_mass_content_of_cloud_liquid_water "Content" indicates a quantity per unit area. The "atmosphere content" of a quantity refers to the vertical integral from the surface to the top of the atmosphere. For the content between specified levels in the atmosphere, standard names including content_of_atmosphere_layer are used. [CF-Standard Name]; unit: kg m-2 wind_speed-at10m Speed is the magnitude of velocity. Wind is defined as a two-dimensional (horizontal) air velocity vector, with no vertical component. (Vertical motion in the atmosphere has the standard name upward_air_velocity.) The wind speed is the magnitude of the wind velocity. [CF-Standard Name-vertical_coordinate]; unit: m s-1 atmosphere_water_vapor_content "Content" indicates a quantity per unit area. The "atmosphere content" of a quantity refers to the vertical integral from the surface to the top of the atmosphere. For the content between specified levels in the atmosphere, standard names including content_of_atmosphere_layer are used. Atmosphere water vapor content is sometimes referred to as "precipitable water", although this term does not imply the water could all be precipitated.[CF-Standard Name]; unit: kg m-2 surface_upward_water_flux The surface called "surface" means the lower boundary of the atmosphere. "Water" means water in all phases, including frozen i.e. ice and snow. "Upward" indicates a vector component which is positive when directed upward (negative downward). The surface water flux is the result of precipitation and evaporation. In accordance with common usage in geophysical disciplines, "flux" implies per unit area, called "flux density" in physics.[CF-Standard Name]; unit: mm d-1 humidity difference humidity difference; unit: g kg-1 latent heat transfer coefficient (dalton number) latent heat transfer coefficient (dalton number); unit: 1 NetCDF 119939 https://www.wdc-climate.de/ui/entry?acronym=HOAPS3_DAILY information collection n/a None n/a None