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  • The Airborne Arctic Stratospheric Expedition (AASE) which was based in Stavanger, Norway during January and February, 1989, was designed to study the production and loss mechanisms of ozone in the north polar stratospheric environment, and the effect on ozone distribution of the Arctic polar vortex and of the cold temperatures associated with the formation of Polar Stratospheric Clouds (PSC). This dataset contains measurements of chemical and dynamical parameters collected onboard the NASA ER-2 (for example, ClO, BrO, HCl, O3, NOx, N2, HNO3 and CH4, whole air samples and aerosol measurements).

  • The Meteorological Research Flight (MRF) was a Met Office facility, which flew a well-instrumented C-130 Hercules aircraft for atmospheric research purposes. This dataset contains airborne atmospheric and chemistry measurements taken on board the Met Office C-130 Hercules aircraft flight A754 for the Atmospheric Chemistry and Transport of Ozone in the upper troposphere-lower stratosphere (UTLS) (ACTO) campaign. The flight was located over the North Atlantic. The objective of this flight was to investigate the chemistry and physics of uplifted air, contrasting air masses in the upper troposphere and lower stratosphere. The flight was just under six hours in duration. Most instrumentation ran well throughout the flight, in particular the carbon monoxide instrument was operational for the first time during the campaign. Three hours and 30 minutes into the flight a PFC fire extinguisher was discharged in the rear van. After investigation, by the load master and the flight leader, a decision was made not to evacuate the van or initiate a smoke and fumes incident. There is some concern that bottle samples taken during the flight may be contaminated. The mission scientists were pleased with the flight: we intercepted a northerly conveyor belt with uplifted Mediterranean air. We were able to do runs parallel with the filaments both to the north and south of the gradient. Throughout the flight the clouds and haze were exactly as expected from the satellite pictures and met. forecasts.

  • The UK Universities Global Atmospheric Modelling Programme (UGAMP) ozone climatology project. This dataset contains a 3-dimensional climatology of ozone averages, combining various satellite observations and ozone sonde data. The data are global and covers 1985-1989. Each file contains a ligne of text followed by the variable itself, in free format. Every single three-dimensional field var is stored as (((var(i, j, k), i=1, 144), j=1, 73), k=1, 47) where i is the longitude index (from 0°E to 357.5°E by 2.5°); j is the latitude index (from South Pole to North Pole by 2.5°); k is the level index (from top to bottom). Every two-dimensional field (zonal means) is stored as ((var(j, k), j=1, 73), k=1, 47) with the same conventions as above.

  • The UK daily weather observation data contain meteorological values measured on a 24 hour time scale. The measurements of sunshine duration, concrete state, snow depth, fresh snow depth, and days of snow, hail, thunder and gail were attained by observation stations across the UK and transmitted within DLY3208, NCM, AWSDLY and SYNOP messages. The data span from 1880 to present.

  • The UK soil minimum temperature (1959-1970) data describe daily measurements of bare soil minimum temperatures. The measurements were recorded by observation stations across the UK and transmitted within DLY3208 messages. The data span from 1959 to 1970, but these temperatures have not been reported since 1970.

  • The European Arctic Stratospheric Ozone Experiment is a European Commission (EC) measurement campaign undertaken in the Northern Hemisphere winter of 1991-92 to study ozone chemistry and dynamics. This dataset contains ozone measurements.

  • The UK sub-hourly rainfall data describe rainfall tip amounts with a time resolution of one minute, from SSER (Solid State Event Recorder) messages from 137 UK observation stations. The data spans from 1986 to 2005.

  • CCMVal was a large international effort to improve understanding of Chemistry-Climate Models (CCMs) and their underlying GCMs (General Circulation Models) through process-oriented evaluation, along with discussion and coordinated analysis of science results. The first round of CCMVal (CCMVal-1) evaluated only a limited set of key processes in the CCMs, focusing mainly on dynamics and transport. This dataset contains LMDZrepro model output from the WMO 2006 DYNAMICS experiment run by the Institut Pierre Simon Laplace, France.

  • CCMVal was a large international effort to improve understanding of Chemistry-Climate Models (CCMs) and their underlying GCMs (General Circulation Models) through process-oriented evaluation, along with discussion and coordinated analysis of science results. The first round of CCMVal (CCMVal-1) evaluated only a limited set of key processes in the CCMs, focusing mainly on dynamics and transport. This dataset contains SOCOL model output from the REF1 simulations experiment run by the Physikalisch-Meteorologisches Observatorium Davos (PMOD/WRC) and Swiss Federal Institute of Technology in Zurich (ETHZ), Switzerland.

  • The Bolton Experiment was an experimental test of the use of microwave attenuation to improve rainfall estimates in urban areas, and hence to enhance flood warning. Data was collected from microwave and radar links and a number of telemetered tipping bucket raingauges. The dataset contains microwave, raingauge and radar data. It also contains data analysis to extract information from the link attenuation data on path-averaged rainfall rate, and comparison with the results with those obtained from the raingauges and the radar. The dataset is now public.