Effective Hydrological Angular Momentum Functions (HAM) 2020 - ESMGFZ HAM v1.2 24h
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ESMGFZ_HAM_v1.2_24h_2020.asc| Title | Effective Hydrological Angular Momentum Functions (HAM) 2020 - ESMGFZ HAM v1.2 24h |
| Number | 2020 |
| Volume | ESMGFZ HAM v1.2 24h |
| Date | 2021-01-01 |
| Content | effective angular momentum functions from hydrological (land) mass and motion terms File units : dimensionless earth rotation excitation functions Issue date : 2021-01-01 Version number : v1.2 Number of data records : 366 Subtracted mean value : mean from 2003-01-01 to 2014-12-31 (only x-, y-, z-component mass terms) -1.722266235718563e-07 1.442803309340720e-06 2.052039186123164e-08 Hydrological model : Land Surface Discharge Model (LSDM) Horizontal domain : global, continental land surface Horizontal resolution : 0.5 x 0.5 degree (regular grid) Vertical resolution : 1 surface layer Hydrologic model forcing : Precipitation : daily sum from 3h ECMWF operational model (short-term forecasts) Evaporation : daily sum from 3h ECMWF operational model (short-term forecasts) Temperature : daily average from 6h ECMWF operational model (analyses) Data assimilated : None Notes : These HAMs are part of a set of consistently processed Earth rotation excitation function (AAM, OAM, HAM). The ocean model MPIOM and the hydrological model LSDM were forced consistently with operational analysis data from the ECMWF. Further references to be mentioned, when LSDM data are used: Dill, R., Hydrological model LSDM for operational Earth rotation and gravity field variations. GFZ Scientific Technical Report STR08/09, 2008 |
| Documentation | GFZ provides these data as Associated Product Centre by order of the International Earth Rotation and Reference System Service (IERS). The data is public availably without any warranty of any kind what so ever, either express or implied, including warranties of merchantability. GFZ shall not be liable for incidental, consequential, or special consequences arising out of the use of this data.operational_AAM/ ESMGFZ_AAM_v1.0_03h_yyyy.asc daily updated yearly AAM file 1976-01-01 until now operational_OAM/ ESMGFZ_OAM_v1.0_03h_yyyy.asc daily updated yearly OAM file 1976-01-01 until now operational_HAM/ ESMGFZ_HAM_v1.2_24h_yyyy.asc daily updated yearly HAM file 1976-01-01 until now-----------------------------------------------------------------------------------------Data Description:Data are values of effective angular momentum functions (EAM) of the atmosphere, the ocean, and land hydrology as calculated from 6-hourly ECMWF (European Centre for Medium-range Weather Forecasts) operational atmospheric forcing data by means of theMax Planck Institute Ocean Model (MPIOM) and the Land Surface Discharge Model(LSDM). All the data is processed consistently to the GRACE de-aliasing products AOD1BRelease 06. Model description and citation info is given in the references at the end of this file.ftp://ig2-dmz.gfz-potsdam.de/EAM/README |
| Time Interval | 24h |
| Time Start | 2020-01-01 12:00:00 |
| Time End | 2020-12-31 12:00:00 |
| Data Points | 366 |
| Data | YYYY MM DD HH MJD mass term(x,y,z) motion term(x,y,z) |
| Format Description | %4s %2s %2s %2s %8s %23.15e %23.15e %23.15e %23.15e %23.15e %23.15e \n |
| Format | ASCII |
| Frequency | daily |
| Keywords | geophysical fluids, models |
| Reference | Dobslaw, H., R. Dill, A. Groetzsch, A. Brzezinski, and M. Thomas (2010), Seasonal polar motion excitation from numerical models of atmosphere, ocean, and continental hydrosphere, J. Geophys. Res., doi:10.1029/2009JB007127 |
| Created by | Deutsches GeoForschungsZentrum GFZDep. 1: Geodesy and Remote SensingSec. 1.3: Earth System Modelling |
| Contact | dobslaw@gfz-potsdam.de |
| Distribution | onLine |
| Source | ftp://esmdata.gfz-potsdam.de/EAM/operational_HAM/ |