The Advanced Scatterometer (ASCAT) CPEX dataset consists of ice probability, wind speed, and wind direction estimates collected by the ASCAT. The ASCAT is onboard the MetOp-A and MetOp-B satellites and uses radar to measure the electromagnetic backscatter from the wind-roughened ocean surface, from which data on wind speed and direction can be derived. These data were gathered during the Convective Processes Experiment (CPEX) field campaign. CPEX collected data to help answer questions about convective storm initiation, organization, growth, and dissipation in the North Atlantic-Gulf of America-Caribbean Oceanic region during the early summer of 2017. These data files are available from May 24, 2017 through July 16, 2017 in netCDF-3 format.

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GHRC_DAAC Short Name: ascatcpex Version ID: 1 Unique ID: C2428509185-GHRC_DAAC

The "Land Surface Temperature derived from NOAA-AVHRR data (LST_AVHRR)" is a fixed grid map (in stereographic projection ) with a spatial resolution of 1.1 km. The total size covering Europe is 4100 samples by 4300 lines. Within 24 hours of acquiring data from the satellite, day-time and night-time LSTs are calculated. In general, the products utilise data from all six of the passes that the satellite makes over Europe in each 24 hour period. For the daily day-time LST maps, the compositing criterion for the three day-time passes is maximum NDVI value and for daily night-time LST maps, the criterion is the maximum night-time LST value of the three night-time passes. Weekly and monthly day-time or night-time LST composite products are also produced by averaging daily day-time or daily night-time LST values, respectively. The range of LST values is scaled between –39.5°C and +87°C with a radiometric resolution of 0.5°C. A value of –40°C is used for water. Clouds are masked out as bad values. For additional information, please see: https://wdc.dlr.de/sensors/avhrr/

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FEDEO Short Name: b673f41b-d934-49e4-af6b-44bbdf164367 Version ID: NA Unique ID: C2207458008-FEDEO

The AVHRR Mulitchannel Sea Surface Temperature Map (MCSST) was the first result of DLR's AVHRR pathfinder activities. The goal of the product is to provide the user with actual Sea Surface Temperature (SST) maps in a defined format easy to access with the highest possible reliability on the thematic quality. After a phase of definition, the operational production chain was launched in March 1993 covering the entire Mediterranean Sea and the Black Sea. Since then, daily, weekly, and monthly data sets have been available until September 13, 1994, when the AVHRR on board the NOAA-11 spacecraft failed. The production of daily, weekly and monthly SST maps was resumed in February, 1995, based on NOAA-14 AVHRR data. The NOAA-14 AVHRR sensor became some technical difficulties, so the generation was stopped on October 3, 2001. Since March 2002, NOAA-16 AVHRR SST maps are available again. With the beginning of January 2004, the data of AVHRR on board of NOAA-16 exhibited some anormal features showing strips in the scenes. Facing the “bar coded” images of NOAA16-AVHRR which occurred first in September 2003, continued in January 2004 for the second time and appeared in April 2004 again, DFD has decided to stop the reception of NOAA16 data on April 6th, 2004, and to start the reception of NOAA-17 data on this day. On April 7th, 2004, the production of all former NOAA16-AVHRR products as e.g. the SST composites was successully established. NOAA-17 is an AM sensor which passes central Europe about 2 hours earlier than NOAA-16 (about 10:00 UTC instead of 12:00 UTC for NOAA-16). In spring 2007, the communication system of NOAA-17 has degraded or is operating with limitations. Therefore, DFD has decided to shift the production of higher level products (NDVI, LST and SST) from NOAA-17 to NOAA-18 in April 2007. In order to test the performance of our processing chains, we processed simultaneously all NOAA-17 and NOAA-18 data from January 1st, 2007 till March 29th, 2007. All products are be available via EOWEB. Please remember that NOAA-18 is a PM sensor which passes central Europe about 1.5 hours later than NOAA-17 (about 11:30 UTC instead of 10:00 UTC for NOAA17). The SST product is intended for climate modelers, oceanographers, and all geo science-related disciplines dealing with ocean surface parameters. In addition, SST maps covering the North Atlantic, the Baltic Sea, the North Sea and the Western Atlantic equivalent to the Mediterranean MCSST maps are available since August 1994. The most important aspects of the MCSST maps are a) correct image registration and b) reasonable cloud screening to ensure that only cloud free pixels are taken for the later processing and compositing c) for deriving MCSST, only channel 4 and 5 are used.. The SST product consists of one 8 bit channel. For additional information, please see: https://wdc.dlr.de/sensors/avhrr/

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• 802569b8-fb56-4d78-a2e8-3e4549ff475b

FEDEO Short Name: 802569b8-fb56-4d78-a2e8-3e4549ff475b Version ID: NA Unique ID: C2207458053-FEDEO

The ELOEV data suite packages a decade of global, multi-scale oceanographic context for ecology and movement studies, pairing Eulerian fields with Lagrangian metrics that describe transport and mixing. Typical use cases include marine predator habitat modeling, environmental selection studies, and process-to-pattern linkages in physical-biological oceanography. Geophysical variables in this suite include: vars_aqua: • Zeu_lee – Euphotic depth, Lee algorithm (m) • chl_ocx – Chlorophyll concentration, OC3 algorithm (mg m⁻³) • kd_490 – Diffuse attenuation coefficient at 490 nm, KD2 algorithm (m⁻¹) • par – Photosynthetically Available Radiation (Einstein m⁻² day⁻¹) • poc – Particulate Organic Carbon (mg m⁻³) • sst – Sea Surface Temperature (°C) vars_orbview-2: • Zeu_lee – Euphotic depth, Lee algorithm (m) • chl_ocx – Chlorophyll concentration, OC3 algorithm (mg m⁻³) • kd_490 – Diffuse attenuation coefficient at 490 nm, KD2 algorithm (m⁻¹) • par – Photosynthetically Available Radiation (Einstein m⁻² day⁻¹) • poc – Particulate Organic Carbon (mg m⁻³) vars_noaa poes: • sst – Sea Surface Temperature (°C) vars_models: • Delta – 3-Day Backward Dilation Rate for absolute time span (day⁻¹) • ftle – 3-Day Backward Finite Time Lyapunov Exponent for absolute time span (day⁻¹)

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OB_CLOUD Short Name: AVHRR_L4m_ELOEV Version ID: 1 Unique ID: C3534990344-OB_CLOUD

A primary determinant of microwave backscatter is the Rayleigh-scale roughness. For instruments observing at C-band and at oblique angles, this corresponds to a roughness scale of ~ 1 cm. Using ASCAT, a C-band scatterometer in polar orbit, we can determine the backscatter (and hence cm-scale roughness) of the sea ice cover on the ocean. This dataset uses a complex parameterisation of multi-day (5-day) backscatter measurements to parameterise the backscatter into several parameters. For more details on the backscatter parameterisation, see Fraser et al., 2014 (https://ieeexplore.ieee.org/document/6527913). This dataset consists of 5-daily maps of all backscatter parameters spanning the time period from March 2007 to December 2017. Each map is presented as unformatted binary, and is provided in the NSIDC polar stereographic projection (12.5 km resolution, southern hemisphere, 632*664 px, 32-bit floating point - see https://nsidc.org/data/polar-stereo/ps_grids.html).

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• AAS_4301_ASCAT_backscatter_parameters

AU_AADC Short Name: AAS_4301_ASCAT_backscatter_parameters Version ID: 1 Unique ID: C1667374282-AU_AADC