2015
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This dataset collection holds a repeatable kinematic dataset taken from Global Navigation Satellite Systems (GNSS) stations on moving platforms at the Snowdon Mountain Railway (SMR). The datasets include profiles of 950m of the lower atmosphere over a 50 day period in 2011. There are three different locations used in the dataset as it was mounted on a train of the Snowdon Mountain Railway (SNTR) as it travelled up and down the mountain, with two static reference stations at the base of the railway at Llanberis (SNLB) and at the summit (SNSU). Three instruments were used to collect the data including; Paroscientific 745, Paroscientific Met 4 and Leica GS10 GNSS receivers. Respectively measuring pressure, pressure/temperature, dual frequency GPS and GLONASS code and carrier phase satellite to receiver measurements.
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In-situ airborne observations by the FAAM BAE-146 aircraft for SALSTICE Semi-Arid Land Surface Temperature IASI Cal/val.
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In-situ airborne observations by the FAAM BAE-146 aircraft for BUNCEFIELD SMOKE EXPERIMENT (Buncefield Smoke Experiment).
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In-situ airborne observations by the FAAM BAE-146 aircraft for SUMEX-14: Met Office Summer Campaign, 2014.
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The GlobSnow SWE product is the first satellite based daily SWE dataset for the non-alpine northern hemisphere that extends from 1979 to 2014. The previous existing daily SWE records have spanned a shorter time period (2002-2014) or described the snow conditions on a monthly basis for a similar period (1978-2014). The GlobSnow SWE record utilizes a novel data-assimilation based approach for SWE estimation which combines weather station measurements of snow depth with satellite passive microwave measurements. This approach was shown to be superior to alternative algorithms which solely utilize satellite data through comparison with extensive ground reference datasets. The GlobSnow-1 and -2 projects have developed a long term data record of SWE products covering the non-alpine Northern Hemisphere, based on a time series of remotely sensed observations from the Nimbus-7 SMMR, DMSP F8/F11/F13/F17 SSM/I(S) instruments and ground-based weather station measurements from 1979 until 2014. There are three SWE products (all on the EASE model grid; see Armstrong and Brodzik, 1995): - Daily Snow Water Equivalent (Daily L3A SWE), snow water equivalent (mm) for each grid cell for all evaluated land areas of the Northern Hemisphere. - Weekly Aggregated Snow Water Equivalent (Weekly L3B SWE), calculated for each day based on a 7-day sliding time window aggregation of the daily SWE product. - Monthly Aggregated Snow Water Equivalent (Monthly L3B SWE), a single product for each calendar month, providing the average and maximum SWE, calculated from the weekly aggregated SWE product. The GlobSnow-1 project resulted in two versions of the data record, SWE v1.0 and SWE v1.3 (available from FMI). The dataset produced in GlobSnow-2 is identified as the GlobSnow SWE v2.0 data record. In addition to the SWE retrievals, the SWE products include information on the overall extent of snow cover. The information on snow extent is included in the product by utilizing the following coding for the SWE product, whereby SWE values of: - 0 mm denotes snow-free areas (Snow Extent 0%) - 0.001 mm denote areas with melting snow (Snow Extent undefined between 0% and 100%; no SWE retrieval because of the wet state of the snow cover) - > 0.001 mm denote areas with full snow cover (Snow Extent 100%) The areas that have been flagged as snow-free or melted are identified using a time-series melt detection approach described in Takala et al. (2009). The areas that are identified as wet snow or have no SWE retrieval, but are identified as snow covered with the time-series melt-detection approach, are denoted with a SWE value of 0.001 mm. The areas that are determined as snow-free or melted by the melt-detection approach, are denoted with a SWE value of 0 mm. All the other areas show a retrieved SWE value (that is in all cases greater than 0.001 mm). The project was coordinated by the Finnish Meteorological Institute (FMI). Other project partners involved are NR (Norwegian Computing Centre), ENVEO IT GmbH, GAMMA Remote Sensing AG, Finnish Environment Institute (SYKE), Environment Canada (EC), Northern Research Institute (Norut), University of Bern, Meteoswiss and ZAMG.
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This dataset collection holds high-resolution datasets related to in-land water for limnology (study of in-land waters) and remote sensing applications. These were produced by the Department of Meteorology at the University of Reading. Information on distance-to-land for each water cell and the distance-to-water for each land cell has many potential applications in remote sensing, where the applicability of geophysical retrieval algorithms may be affected by the presence of water or land within a satellite field of view (image pixel). The data was recorded over a 5 year period from 2005-2010 on a global scale. It is expected that new and updated datasets will be added in the future.
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In-situ airborne observations by the FAAM BAE-146 aircraft for Local And Non local Fog Experiment (LANFEX).
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In-situ airborne observations by the FAAM BAE-146 aircraft for VIROSS - Visible Reflectance of the Sea Surface.
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In-situ airborne observations by the FAAM BAE-146 aircraft for ISMAR Test flight: International Sub-Millimetre Airborne Radiometer.
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In-situ airborne observations by the FAAM BAE-146 aircraft for STICCS - Submillimetre Trial In Cirrus and Clear Skies.