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NEW VIDEO!Evolution cloud.

Are Ozone Concentrations at risk in Northern Hemisphere?
Stratospheric hydrogen chloride (HCl) is the main stratospheric chlorine reservoir and, thus, an indicator of ozone-destroying substances (ODSs). An international reseach team including scientists of the Karlsruhe Institute of Technology (KIT) observed an annual increase by up to three percent in the HCl content over the northern hemisphere since 2007 in contrast with the ongoing monotonic decrease of near-surface source gases.However, by using model simulations, the authors attribute this trend anomaly to a slowdown in the Northern More...
Tuesday, 18 November 2014 09:06
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Comprehensive validation study of atmospheric mineral dust products from the MACC-II reanalysis.
A new study on validation of mineral dust products from the MACC-II (Monitoring Atmospheric Composition & Climate, Phase II) model from European Centre for Medium-Range Weather Forecasts (ECMWF) has been published in the Atmospheric Chemistry and Physics journal (Discussion). This work, led by researchers at the Izaña Atmospheric Research Center (AEMET), and with the participation of researchers from ECMWF, Barcelona Supercomputing Center (BSC, Spain), CNRS (France), University of Lille (France), National Institute of Aerospace More...
Friday, 14 November 2014 13:20
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Participation in the NORS/NDACC/GAW Workshop
The National Institute for Aerospace Technology (INTA), together with theIzaña Atmospheric Research Center (IARC, AEMET), the Karlsruhe Institute of Technology (KIT) and the Spanish National Research Council (CSIC), have presented two studies in the “NORS/NDACC/GAW Workshop“, which was held in Brussels (Belgium) from 5 to 7 November 2014. The local host has been the Belgian Institute for Space Aeronomy (BIRA-IASB).The aim of the workshop is to highlight the observations and the scientific research that are conducted within the More...
Tuesday, 11 November 2014 13:10
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New discovery: the mechanism that causes interannual variability in Saharan dust export to the North Atlantic.
The journal Atmospheric Chemistry and Physics (Discussions) publishes a new study performed by scientists of the Izaña Atmospheric Research Centre (AEMET), the University of Miami, CSIC and the University of La Laguna, proposing a new atmospheric conceptual model which has clear connections with climate issues. Every year between 1 and 2 millions of tons of desert dust are emitted to the atmosphere in North Africa. These emissions are maximum in summer, when the so-called Saharan Air Layer expands from Africa to the Caribbean at More...
Wednesday, 05 November 2014 12:52
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Rainfall at Izaña was slightly above average during the hydrometeorological year 2013-2014
The last Hydrometeorological year (also known as "agricultural year" in Spain) began September 1, 2013 and ended on August 31, 2014. During this period a total rainfall of 425.2 liters per square meter was recorded at the Izaña Atmospheric Observatory, located in Tenerife 2371 meters above sea level. This value is slightly above the average of the reference period (1971-2000), which is 415 liters per square meter. The winter season was very wet, especially the first half of December when several storms from the southwest, some of them More...
Wednesday, 29 October 2014 11:46
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New paper published in Atmospheric Measurement Techniques Discussion entitled "Using XCO2 retrievals for assessing the long-term consistency of NDACC/FTIR datasets" by Barthlott et al.
Within the NDACC (Network for the Detection of Atmospheric Composition Change), more than 20 FTIR (Fourier–Transform InfraRed) spectrometers, spread worldwide, provide long-term data records of many atmospheric trace gases. This paper presents a method that uses measured and modelled XCO2 for assessing the consistency of these data records. Our NDACC XCO2 retrieval setup is kept simple so that it can easily be adopted for any NDACC/FTIR-like measurement made since the late 1950s. By a comparison to coincident TCCON (Total Carbon Column More...
Monday, 27 October 2014 09:25
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