German National Report CGMS / CEOS Working Group Climate Albrecht von Bargen German Aerospace Center, Space Administration > Lecture > Author Document.

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German National Report CGMS / CEOS Working Group Climate Albrecht von Bargen German Aerospace Center, Space Administration > Lecture > Author Document > DateDLR.de Chart 1

> Lecture > Author Document > DateDLR.de Chart 2 German Earth Observation Programme National Programme BMWi (Federal Ministry of Economics and Technology) Programme International Co-operation bi-/multilateral CEOS GEO Int. Charter „Space and Major Disasters“ Operational European Programmes

Earth Observation Missions (I) Atmosphere SCIAMACHY (ENVISAT) (2002 – 2012) (AO contribution by DLR/NSO/BelSpo) Data access: ESA / EO-Portal EUMETSAT World Data Center for Remote Sensing of the Atmosphere Gravity CHAMP GRACE / GRACE-FO (GFZ/DLR) in cooperation with NASA Radio occultation products (humidity / temperature profile) Data access: Chart 3> Lecture > Author Document > Date

Earth Observation Missions (II) TerraSAR-X / TanDEM-X First & second global (& first Antarctica) acquisition completed, third & fourth coverage in progress Data acquisition for the global DEM to finish by the end of 2014 Delivery of Global DEM commenced in January IGOR => Future Missions Hyper-spectral imaging mission: EnMAP In-kind contribution to MetOp 2 nd Generation: MetImage French / German CH 4 Lidar: MERLIN Chart 4> Lecture > Author Document > Date

Climate related activities Direct National contributions German Weather Service (DWD) R&D initiative by different National Ministries: see for example : World Data Center for Climate ( DLR internal R&D Universities and Research Institutes EUMETSAT SAF (includes additional national co-funding) Climate Monitoring SAF (CM-SAF) led by DWD Ozone Monitoring SAR (O3-SAF) ESA CCI programme line Lead in Aerosols and Cloud ECV projects Strong contributors from Germany in most of the ECV projects Chart 5> Lecture > Author Document > Date

Example from R&D Provided by Markus Rapp, DLR, Institute of Atmospheric Physics Chart 6> Lecture > Author Document > Date

The evolution of stratospheric ozone Numerical model simulations:  Reproduction of observations – evaluation studies  Understanding of changes and trends  Investigation of climate-ozone connections  Prediction of future ozone layer Strong relation to the ESA-CCI ozone project Dameris (DLR-IPA) Loyola (DLR-IMF)

The role of stratospheric water vapour Numerical model simulations:  Reproduction of observations – evaluation studies  Understanding of changes  Investigation of stratospheric water vapour on climate changes  Assessment of future evolution near global mean, lower stratosphere “The millennium drop” Eichinger, Jöckel, Brinkop, Dameris (DLR-IPA)

Trends in upper tropospheric humidity from 30 years of HIRS data Several versions of the High-Resolution Infrared Radiation Sounder have flown on NOAA satellites since The most recent HIRS flies on METOP-A. Data have been intercalibrated in recent years, such that about 30 years of a nearly homogeneous data time series can be analysed. Using channels 12 and 6 we have produced a 30 yr dataset of upper tropospheric humidity with respect to ice (UTHi), sofar only for the latitude range 30  -60  N. A first analysis shows that UTHi increased in many regions significantly from the 1980s to the 2000s.

Statistical significance and causes of trends The brightness temperatures in both channels, T 6 and T 12, have changed as well, but less significantly. (top panel) It turns out that the significance of the change (mainly increase) in UTHi is caused by an increase mainly in the variance of T 12. (middle panel) Because of the nonlinear relation between T 12 and UTHi (Soden and Bretherton, 1993; Jackson and Bates, 2001) a change of T 12 -variance changes the mean of UTHi even when the mean T 12 would stay constant. (bottom panel) Further analyses of UTHi and supersaturation trens will follow. (Gierens, Eleftheratos, Lei, submitted)

Climate Data Contributions by the DWD Provided by Rainer Hollmann, DWD Chart 11> Lecture > Author Document > Date

Available Climate data records from CM SAF ( funded jointly from EUMETSAT, Germany, S, CH, NL, B, FI, UK) Ocean Atmosphere Parameters and Fluxes from Satellite Data ( Vertically Integrated Water Vapour from SSM/I ( ) ( Geost. Surface Radiation ( ) ( Clouds, Albedo and Radiation dataset from global AVHRR ( ) Geost. TOA Radiation ( ) ( FCDR of SSM/I Brightness Temperatures ( ) ( Free Tropospheric Humidity from METEOSAT ( ) Vertically integrated water vapour, humidity and temperature from ATOVS ( ) CLoud property and surface albedo ( ) Surface Radiation Daylight Data Set ( )

Precipation (GPCC, gpcc.dwd.de): Global Monthly Land Surface Precipitation Centennial data set , resolutions 0.5, 1.0 and 2.5 degrees Qualitative error information through station density field Global Monthly Land Surface Precipitation Watch Product Multi-decadal product from 1986 until present, updated monthly Qualitative error information and systematic error (under-catch) on same grid Global Daily Land Surface Precipitation (to be released by end of 2014) Bi-Decadal global data set , resolutions, 0.5, 1.0 Sub-Section data set for Europe on CORDEX grid topology at 0.22 degrees Krigging error, standard deviation and station density on same grids Individual CDRs based on surface (station) observations Gridded products for Germany (Climate Data Centre, (1881 – 2013 and other periods); All ECV’s Available Climate data records from DWD

Thank you for your attention Chart 14> Lecture > Author Document > Date