Gamma Remote Sensing 03.01.2000 The library was filled with interferometric ERS SAR data from Bern, Switzerland (snow and forest) Middle Zeeland, The Netherlands (bare soil) Flevoland 1991, The Netherlands (crops) Flevoland 1995, The Netherlands (crops) and scatterometer data from Davos, Swiss and Austrian Alps (snow) Uecht, Swiss Central Plain (snow) CentralPlain (bare soil, crops) Bern: snow """""""""" Coarse ground information: Air temperature and snow depth from weather stations (snow-covered on 311295_010196) Interferometric ERS-1/2 SAR data: 8 Tandem pairs 040695_050695 090795_100795 130895_140895 221095_231095 261195_271195 311295_010196 100396_110396 140496_150496 Interferometric signatures for 25 fields. The interferometric signatures include the two backscattering intensities and the coherence (mean + std dev) Bern: forest """""""""""" Coarse ground information: Forest type of 26 forest stands Interferometric ERS-1/2 SAR data: 8 Tandem pairs 040695_050695 090795_100795 130895_140895 221095_231095 261195_271195 311295_010196 100396_110396 140496_150496 The interferometric signatures for the 26 forest stands include the two backscattering intensities and the coherence (mean + std dev) Middle Zeeland 1994: 8 bare fields """""""""""""""""""""""""""""""""" Detailed ground information: Soil moisture and roughness parameters (the amount of ground information in the data base was reduced to few data, but the reference to the whole information is provided) Interferometric ERS-1 SAR data: Continuous time series of 12 interferograms 060194_150194 9 days 150194_270194 12 days 270194_050294 9 days 050294_110294 6 days 110294_140294 3 days 140294_170294 3 days 170294_200294 3 days 230294_260294 3 days 260294_040394 6 days 040394_130394 9 days 130394_220394 9 days 220394_280394 6 days The interferometric signatures for the 8 bare fields include the two backscattering intensities and the coherence (mean + std dev) Flevoland 1991: 13 crop fields """""""""""""""""""""""""""""" Detailed ground information: Observations of the crop development of 13 selected fields in summer/fall 1991 Interferometric ERS-1 SAR data: 4 interferograms 040991_100991 6 days 190991_041091 15 days 041091_191091 15 days 191091_091191 21 days The interferometric signatures for the 13 fields include the two backscattering intensities and the coherence (mean + std dev) Flevoland 1991: 3 selected crop types """"""""""""""""""""""""""""""""""""" Coarse ground information: Various fields of the same crop type (sugar beet, potato, maize) from a crop map; observation of the standard crop development during the summer/fall 1991 Interferometric ERS-1 SAR data: 4 interferograms 040991_100991 6 days 190991_041091 15 days 041091_191091 15 days 191091_091191 21 days The interferometric signatures for the various fields of the 3 crop types include the two backscattering intensities and the coherence (mean + std dev) for various fields Flevoland 1995: 12 selected crop types """""""""""""""""""""""""""""""""""""" Coarse ground information: Crop types from the crop map 1995; sowing and harvest dates for the dominant crop types: potato 5 fields sugar beet 5 fields wheat 5 fields grass 5 fields maize 5 fields onions 5 fields peas 5 fields flax 5 fields lucerne 3 fields rapeseed 2 fields bare soil 2 fields bushes 5 fields Interferometric ERS-1/2 SAR data: 4 Tandem pairs 290695_300695 030895_040895 070995_080995 121095_131095 The interferometric signatures for the 13 selected crop types include the two backscattering intensities and the coherence (mean + std dev) for each field Davos, Swiss and Austrian Alps: snow """""""""""""""""""""""""""""""""""" Detailed ground information: Snow depth, density, permittivity, wetness, ... Scatterometer data at 5.3 and 35 GHz: The in-situ scatterometer data include the mean and std dev of the backscattering coefficients at hh, vv, hv and vh polarizations, frequencies of 5.3 and 35 GHz, incidence angles from 20° to 60° for various snowcover situations: snowfree dry snow wet snow (with smooth and rough snow surface) refrozen crust Ground-based scatterometers of the University of Bern, independent samples of the same test-site Uecht, Swiss Central Plain: snow """""""""""""""""""""""""""""""" Detailed ground information: Snow depth, density, permittivity, wetness, ... Scatterometer data at 5.3 and 35 GHz: The in-situ scatterometer data include the mean and std dev of the backscattering coefficients at hh, vv, hv and vh polarizations, frequencies of 5.3 and 35 GHz, incidence angles from 20° to 60° for various snowcover situations: snowfree dry snow (shallow, depth) wet snow refrozen crust Ground-based scatterometers of the University of Bern, independent samples of the same test-site CentralPlain, Switzerland: bare soil, crops """"""""""""""""""""""""""""""""""""""""""" Detailed ground informationn: Temperature, crop type and heights, surface roughness profiles of bare soils, ... RASAM: Radiometer and scatterometer measurements of more than 300 crops and bare soils at frequencies between 2.5 and 11 GHz and incidence angles between 0 and 70 degrees. Ground-based radiometer-scatterometer of the University of Bern, independent samples of the same test-site.