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  • 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 WACCM model output from the WMO 2006 REF1 experiment run by the National Center for Atmospheric Research (NCAR).

  • 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 A755 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 purpose of the flight was to investigate a dry slot behind a cold front to the North West of Scotland. Many interesting filaments of air were sampled. However, distinct 'stratospheric' filaments were not observed until the end of the flight. After the initial end of science an interesting filament was sampled with high ozone (around 130ppb). We retraced our steps in order to fly through once more at science speed. This filament, at FL150, was further east than the forecast 'stratospheric air' filaments. When the air of stratospheric origins was sampled it was found to have high ozone / low relative humidity as expected but it should be noted that there was also high PAN and slightly elevated black carbon. The instruments generally worked well. The FWVS had to have the odd adjustment in flight and then found to maintain a good correlation with the GE; the peroxide began to loose flow at around FL245 and the CO was found to have a small leak of cabin air, which was corrected by 13:50. The CO was also found to be influenced by the flow through the PSAP. The CO did not show much structure during the flight until near the end when the air with stratospheric characteristics was observed. Meteorology An anticyclone was centred to the east of the North Sea and a waving front positioned to approximately along 7 west. The frontal cloud was quite apparent on the way to the operational area. However, a flight level (FL140) was found above most of the cloud, for the NOxy calibrations. Once past the frontal cloud there was little cloud in the operational area: just some thin cirrus.

  • 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 MRI model output from the WMO 2006 New RUNS REF1 experiment run by Meteorological Research Institute (MRI), Tsukuba, Japan MRI.

  • 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 A259 for research purposes.

  • This is a copy of The Berlin Stratospheric Data Series provided to the BADC by K. Labitzke and her collaborators (2002) as a CD from the Meteorological Institute, Free University Berlin. This data set contains temperature and geopotential height data on the 100, 50, 30, 10 mb pressure surfaces produced for a 30-year and 37-year period, at the Meteorological Institute, Free University of Berlin.

  • The Fourier-Adjusted, Sensor and Solar zenith angle corrected, Interpolated, Reconstructed (FASIR) adjusted Normalized Difference Vegetation Index (NDVI) dataset was detected with the Advanced Very High Resolution Radiometer (AVHRR) on-board the MetOp satellites. Derived biophysical parameter fields were generated to provide a 17-year satellite record of monthly changes in the photosynthetic activity of terrestrial vegetation. This dataset was produced and provided by Dr. Sietse Los from the Department of Geography, University of Wales at Swansea.

  • 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 MRI model output from the WMO 2006 DYNAMICS experiment run by Meteorological Research Institute (MRI), Tsukuba, Japan.

  • MOHSST, (Met Office Historical Sea-Surface Temperature) is a gridded dataset of sea-surface temperature anomalies covering the period 1856-2006. MOHSST has now been superceeded by HadSST2. We now recommend use of HadSST2 instead of MOHSST for all purposes. MOHSST is only still available in case it is needed for direct comparison with earlier work where MOHSST was used. MOHSST is produced by taking in-situ measurements of SST from ships and buoys, rejecting measurements which which fail quality checks, converting the measurements to anomalies by subtracting climatological values from the measurements, and averaging the resulting anomalies on a 5 by 5 degree monthly grid. Up to 1996 the measurements used are those in the U.K. Marine Data Bank; more recent years use data coming in through the GTS. After gridding the anomalies, bias corrections are applied to remove spurious trends caused by changes in SST measuring practices, and the data are smoothed to reduce noise. The data were provided by the Met Office Hadley Centre.

  • 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 aerosol measurements on board the NIMBUS 7 Satellite

  • 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 MAECHAM4CHEM model output from the WMO 2006 REF1 experiments run by the Max Planck Institutes, Germany.