API src

Found 50 results.

Other language confidence: 0.9385498182057214

COST-G GravIS RL02 Ocean Bottom Pressure Anomalies

GRACE/GRACE-FO Level-3 product based on COST-G RL02 Level-2B products (Dahle & Murböck, 2025) representing Ocean Bottom Pressure (OBP) variations provided at 1° latitude-longitude grids as defined over ocean areas. The OBP grids are provided in NetCDF format containing seven different variables: 1) 'barslv': gravity-based barystatic sea-level pressure 2) 'std_barslv': gravity-based barystatic sea-level pressure standard deviations 3) 'resobp': gravity-based residual ocean circulation bottom pressure 4) 'std_resobp': gravity-based residual ocean circulation bottom pressure standard deviations 5) 'leakage': apparent gravity-based bottom pressure due to continental leakage contained in 'resobp' 6) 'model_ocean': background-model ocean circulation pressure 7) 'model_atmosphere': background-model atmospheric surface pressure These Level-3 products are visualized at GFZ's web portal GravIS (https://gravis.gfz.de). --------------------------------------------------------------------------------------------- Version History: 14 August 2025: Initial release of the data (Version 0001).

COST-G GravIS RL02 Ice-Mass Change Products

GRACE/GRACE-FO Level-3 product based on COST-G RL02 Level-2B products (Dahle & Murböck, 2025) representing ice-mass changes for the Antarctic Ice Sheet (AIS) and the Greenland Ice Sheet (GIS). The ice-mass changes are provided both as basin average product and as gridded product. Basin-average ice-mass changes are obtained using the inversion procedure based on a forward modelling approach as described in Sasgen et al. (2013) for the AIS and Sasgen et al. (2012) for the GIS. Gridded ice-mass changes are provided at polar-stereographic grids with a grid spacing of 50 x 50 km^2. The applied algorithm is based on tailored sensitivity kernels (Döhne et al., 2023; Groh & Horwath, 2021), and has also been used to generate gravimetric mass balance products within the ESA Climate Change Initiative (CCI) projects for the AIS and the GIS. These Level-3 products are visualized at GFZ's web portal GravIS (https://gravis.gfz.de). --------------------------------------------------------------------------------------------- Version History: 13 March 2026: Initial release of the data (Version 0001).

HySpex - Level 2 Hyperspectral Images - Bohemian Forest

This collection contains airborne hyperspectral imagery acquired by the EOC user service OpAiRS. The data was recorded with the airborne DLR EnMAP simulator, which contains two HySpex cameras manufactured by the Norwegian Company NEO. The survey has been conducted within the scope of the “Data Pool Initiative for the Bohemian Forest Ecosystem”. It covers parts of the Bohemian forest, mainly the Bavarian Forest National Park. The data are made available as orthorectified ground reflectance. For more information concerning the airborne sensor system the reader is referred to: https://www.dlr.de/eoc/en/desktopdefault.aspx/tabid-11411/19998_read-46623/

COST-G GravIS RL02 Terrestrial Water Storage Anomalies

GRACE/GRACE-FO Level-3 product based on COST-G RL02 Level-2B products (Dahle & Murböck, 2025) representing Terrestrial Water Storage (TWS) anomalies provided at 1° latitude-longitude grids as defined over all continental regions except Greenland and Antarctica. The TWS anomaly grids are provided in NetCDF format containing four different variables: 1) 'tws': gravity-based TWS 2) 'std_tws': gravity-based TWS standard deviations 3) 'leakage': spatial leakage contained in 'tws' 4) 'model_atmosphere': background model atmospheric mass These Level-3 products are visualized at GFZ's web portal GravIS (https://gravis.gfz.de). --------------------------------------------------------------------------------------------- Version History: 14 August 2025: Initial release of the data (Version 0001).

Post-processed GRACE/GRACE-FO Geopotential GSM Coefficients COST-G RL02 (Level-2B Product)

Post-processed GRACE/GRACE-FO spherical harmonic coefficients of COST-G RL02 Level-2 GSM products representing an estimate of Earth's gravity field variations during the specified timespan. Post-processing steps comprise: (1) subtraction of a long-term mean field; (2) optionally, decorrelation and smoothing with VDK filter (anisotropic filter taking the actual error covariance information of the underlying GSM coefficients into account, see Horvath et al. (2018)); (3) replacement of coefficients C20 and C30 (only for the months within the period from 2016/11 through 2017/06) and its formal standard deviations by values estimated from a combination of GRACE/GRACE-FO and Satellite Laser Ranging (SLR); (4) subtraction of linear trend caused by Glacial Isostatic Adjustment (GIA) as provided by a numerical model; (5) insertion of geocenter coefficients (C10, C11, S11); and (6) removal of estimated aliased signal of the S2 tide (161 days period). These coefficients represent signals caused by water mass redistribution over the continents and in the oceans. These post-processed GRACE/GRACE-FO GSM products are denoted as Level-2B products. There are multiple variants of Level-2B products available that differ by the characteristics of the anisotropic filter applied. These variants are distinguishable by the following strings in the product file names: - 'NFIL': Level-2B product is not filtered - 'VDK1': Level-2B product is filtered with VDK1 - 'VDK2': Level-2B product is filtered with VDK2 - 'VDK3': Level-2B product is filtered with VDK3 - 'VDK4': Level-2B product is filtered with VDK4 - 'VDK5': Level-2B product is filtered with VDK5 - 'VDK6': Level-2B product is filtered with VDK6 - 'VDK7': Level-2B product is filtered with VDK7 - 'VDK8': Level-2B product is filtered with VDK8 The individual auxiliary data sets and models used during the post-processing steps mentioned above are provided as well (in the aux_data folder): - 'GRAVIS-2B_COSTG_0200_2002095-2020091_NFIL_0001.gz': Long-term mean field calculated as unweighted average of the 183 available GFZ RL06 GSM products in the period from 2002/04 through 2020/03 - 'GRAVIS-2B_COSTG_0200_GRACE+SLR_LOW_DEGREES_0001.dat': Time series of coefficients C20, C30, C21 and S21 estimated from a combination of GRACE/GRACE-FO and SLR - 'GRAVIS-2B_COSTG_0200_GIA_ICE-6G_D_VM5a_0001.gz': Model from Peltier et al. (2018) for subtraction of linear trend caused by GIA - 'GRAVIS-2B_COSTG_0200_GEOCENTER_0001.dat': Time series with geocenter coefficients estimated from COST-G RL02.1 Further information about the Level-2B products and the auxiliary data is provided in the header of the corresponding data files. --------------------------------------------------------------------------------------------- Version History: 22 July 2025: Initial release of the data (Version 0001).

ELFIN-L Level 1 EPD (Electron Losses and Fields INvestigation on board the Lomonosov satellite, Electron Particle Detector)

The objective of the Lomonosov satellite development concerns the studies of the ultra-high energy cosmic rays and fast processes in optic, X-ray and gamma-ranges which occur in the upper layers of the Earth's atmosphere and in the Universe. This dataset consists of electron particle detector (EPD) counts data of the ELFIN-L instrument which has been described in Shprits et al. (2018). The data rate is 2 measurements per second on 8 physical electron detectors with 12 sub-channels from 21 keV to 4.7 MeV. The data is available from May to November 2016. Due to commissioning-phase and changes in the detector configuration only data from August to November 2016 is usable. Some of the electron detector channels do not provide valid or other than noise measurements. The valid channels are for 21 keV, 30 keV, 44 keV, 1.006 MeV and 1.600 MeV.

ELFIN-L Level 3 EPD (Electron Losses and Fields INvestigation on board the Lomonosov satellite, Electron Particle Detector)

The objective of the Lomonosov satellite development concerns the studies of the ultra-high energy cosmic rays and fast processes in optic, X-ray and gamma-ranges which occur in the upper layers of the Earth's atmosphere and in the Universe. This dataset consists of calibrated electron particle detector (EPD) data of the ELFIN-L instrument which has been described in Shprits et al. (2018). The data rate is 2 measurements per second on 8 physical electron detectors with 12 sub-channels from 21 keV to 4.7 MeV. The data is available from May to November 2016. Due to commissioning-phase and changes in the detector configuration only data from August to November 2016 is usable. Some of the electron detector channels do not provide valid or other than noise measurements. The valid channels are for 21 keV, 30 keV, 44 keV, 1.006 MeV and 1.600 MeV.

ELFIN-L Level 2 EPD (Electron Losses and Fields INvestigation on board the Lomonosov satellite, Electron Particle Detector)

The objective of the Lomonosov satellite development concerns the studies of the ultra-high energy cosmic rays and fast processes in optic, X-ray and gamma-ranges which occur in the upper layers of the Earth's atmosphere and in the Universe. This dataset consists of calibrated electron particle detector (EPD) data of the ELFIN-L instrument which has been described in Shprits et al. (2018). The data rate is 2 measurements per second on 8 physical electron detectors with 12 sub-channels from 21 keV to 4.7 MeV. The data is available from May to November 2016. Due to commissioning-phase and changes in the detector configuration only data from August to November 2016 is usable. Some of the electron detector channels do not provide valid or other than noise measurements. The valid channels are for 21 keV, 30 keV, 44 keV, 1.006 MeV and 1.600 MeV.

ELFIN-L Level 2 Adiabatic Invariants (Electron Losses and Fields INvestigation on board the Lomonosov satellite)

The objective of the Lomonosov satellite development concerns the studies of the ultra-high energy cosmic rays and fast processes in optic, X-ray and gamma-ranges which occur in the upper layers of the Earth's atmosphere and in the Universe. This dataset consists of additional adiabatic invariants (Lm, K and I) data of the ELFIN-L instrument which has been described in Shprits et al. (2018). The data is available from May to November 2016.

ELFIN-L Level 1 ENG (Electron Losses and Fields INvestigation on board the Lomonosov satellite, Engineering data)

The objective of the Lomonosov satellite development concerns the studies of the ultra-high energy cosmic rays and fast processes in optic, X-ray and gamma-ranges which occur in the upper layers of the Earth's atmosphere and in the Universe. This dataset consists of engineering housekeeping data (ENG) data of the ELFIN-L instrument which has been described in Shprits et al. (2018). The data is available from May to November 2016.

1 2 3 4 5