Categories - Climate Change

Sub Categories

Topics

flood, cmip6, e3sm, integrated-assessment, xclim, esgf, hazard-assessment, chirps, inundation, climate-data-analysis, cmip, hazard, tropical-cyclone, integrated-assessment-model, cesm, meteorologia, agricultura, climate-indices, climate-datasets, cmip5, climate-forecasting, human-earth-system, gcam, coupled-human-natural-systems, ncar, icclim, cf-conventions, esmf, s2s, national-water-center, climateserv, emodis, esi, imerg, disaster, floods, neuralgcm, zealand, climate-stations, hurricane, kml, national-climate-database, openquake-engine, esmx, potential-intensity, earth-system-modelling, tropical-cyclone-variability, weather-conditions, iamc-format, contingency-table, forecast-evaluation, model-validation, design-rainfall, duration, duration-steps, dwa, earth-system-modeling-framework, dwa-a-531, heavy-rain, intensity-duration-frequency, kostra, return-period, cloud-optimized, anuclim, sr15, earthkit, archiving, mpas, mpas-analysis, cxx, kokkos, daily-data, daily-weather, pathway-analysis, global-data, gsod, timeseries-format, historical-weather, ncdc, ncei, scenario-data, macro-energy, integrated-assessment-scenarios, weather-information, oceanic-nino, ensemble-machine-learning, sckit-learn, tensorflow2, xarray-accessor, archives, data-rescue, digitization, transcription, hurricane-calculations, hurricanes, openquake, cluster, cansips, cangrd, ahccd, parameters, ecco, pca, eof-analysis, dimensionality-reduction, national-water-model, hand, tiros, radiometric, metop, lac, gac, hector-model, warming-stripes, sea-levels, carbon-dioxide-data, mtclim, ornl-daac, gpm-imerg, hut23-1077, prepare, cmor3, demographics, colombia, disaster-risk-management, ropenspain, forecast-api, aemet, magicc-model, psha, iris, climate-simulations, climate-indicators, calculation-climate, unidata-netcdf, gfdl, fms, servirglobal, servir, ndvi, xcdat, pcmdi, climate-sciences, climate-research, cdat, hadcrut5, nuopc, model-coupling, avhrr, soil-plant-atmosphere, sif, fluorescence, cyclone, unstructured-grids, ugrid, jedi, gefs, gdas, ecosystem, clm, lisvap, lisflood, glofas, efas, apache-beam, spaceweather, performance-diagram, logon, ogc, indices, inasafe, disasterresponse, gridded-climate-data, aoi, tropical, cyclones, adcirc, tropical-storms, cyclones-behaviour, gdpcir, climate-impacts, predictive-analytics, multimodel-ensemble, mrms, hail, landslide, debrisflow, sea-ice-thickness, scicomm, matlab-toolbox, variance-scaling, quantile-mapping, quantile-delta-mapping, linear-scaling, detrended-quantile-mapping, delta-method, delta-change-method, cdf, bias-adjustment, fever, byrd, near-real-time, pollen-measurements, phenology-data, ogd, flood-risk-models, world3, smap, rating-curve, hec-ras, floodplain, strategic-planning, geoinformatics, bom, australia-bureau-of-meteorology, netcdf-library, netcdf-fortran, hector, projection, conflict, mpi4py, warming-levels, ipcc-regions, climate4r, climate-change-atlas, tsunami, surge, storm, adaptive, ohio-state-university, oceans, xgcm, landscape-evolution-model, erosion-process, compaction, basin-modeling, netcdf-files, multiple-threads, flood-inundation-maps, model-diagnostics, solar-radiation, relative-humidity, frost, elevation, diurnal-temperature, cru-cl2, cru, gcam-china, cmip6-data, h5py, flood-monitoring, s2d, regrid, netcdf-operators, nco, hdf, gsl, data-catalog, cesm-lens, sedimentation, sediment-transport, paleogeography, paleoclimate, lithology, loss, insurance, catastrophe-modelling, catastrophe-model, norwegian, noresm, roms, regional, regcm, coupled, satellite-imagery-analysis, landsat-data, geodata, climate-policy, med-team, storms, china, ecmwf-services, cds, large-language-models, climate-services, climate-assessments, ai-for-climate, um, pp, cfunits, cfdm, cf, dem, urban-climate-model, vulnerability, reinsurance,

Projects

Contributors

Nikeeth Ramanathan [email protected]

OST Projects: 1
Categories: Climate Change
Sub Categories: Earth and Climate Modeling
Topics: climate, forecast-evaluation, forecast-verification, model-validation, oceanography, verification, weather, contingency-table

Maree Carroll [email protected]

OST Projects: 1
Categories: Climate Change
Sub Categories: Earth and Climate Modeling
Topics: meetup, meteorology, notebook-jupyter, talks, climate, forecast-evaluation, forecast-verification, model-validation, oceanography, verification and 2 more

JingCheng-NOAA [email protected]

OST Projects: 1
Categories: Climate Change
Sub Categories: Natural Hazard and Storm
Topics: hurricane, numerical-weather-prediction, tropical-cyclone

Masahiro Sakai [email protected]

OST Projects: 1
Categories: Climate Change
Sub Categories: Climate Data Standards
Topics: automatic-differentiation, numerical-optimization, coverage-data, coverage-report, haskell, numerical-methods, closember, mathematical-optimization, mathematical-programming, mixed-integer-programming and 23 more

Michele Simionato [email protected]

OST Projects: 1
Categories: Climate Change
Sub Categories: Natural Hazard and Storm
Topics: cluster, earthquakes, hazard, hazard-assessment, openquake, openquake-engine, psha, risk-analysis, risk-assessment, seismic and 1 more

Lars Butler [email protected]

OST Projects: 1
Categories: Climate Change
Sub Categories: Natural Hazard and Storm
Topics: cluster, earthquakes, hazard, hazard-assessment, openquake, openquake-engine, psha, risk-analysis, risk-assessment, seismic and 18 more

Daniele Viganò [email protected]

OST Projects: 1
Categories: Climate Change
Sub Categories: Natural Hazard and Storm
Topics: cluster, earthquakes, hazard, hazard-assessment, openquake, openquake-engine, psha, risk-analysis, risk-assessment, seismic and 11 more

g-weatherill [email protected]

OST Projects: 1
Categories: Climate Change
Sub Categories: Natural Hazard and Storm
Topics: cluster, earthquakes, hazard, hazard-assessment, openquake, openquake-engine, psha, risk-analysis, risk-assessment, seismic

Anirudh Rao [email protected]

OST Projects: 1
Categories: Climate Change
Sub Categories: Natural Hazard and Storm
Topics: cluster, earthquakes, hazard, hazard-assessment, openquake, openquake-engine, psha, risk-analysis, risk-assessment, seismic

Meg Fowler [email protected]

OST Projects: 1
Categories: Climate Change
Sub Categories: Earth and Climate Modeling
Topics:

Clark Fitzgerald [email protected]

OST Projects: 1
Categories: Climate Change
Sub Categories: Climate Data Standards
Topics: numerical-methods, closember, asynchronous, distributed-computing, future, hpc-clusters, parallel, parallel-computing, parallel-processing, parallelization and 6 more

crusaderky [email protected]

OST Projects: 1
Categories: Climate Change
Sub Categories: Climate Data Standards
Topics: disk, freebsd, memory, netbsd, openbsd, osx, ps, psutil, sensors, system-monitoring and 16 more

Guido Imperiale [email protected]

OST Projects: 1
Categories: Climate Change
Sub Categories: Climate Data Standards
Topics:

johnomotani [email protected]

OST Projects: 1
Categories: Climate Change
Sub Categories: Climate Data Standards
Topics: data-storage, hdf5, hdf5-binaries, hdf5-files, hdf5-library, jld, mat, pydata, conda, conda-build and 1 more

Tom White [email protected]

OST Projects: 1
Categories: Climate Change
Sub Categories: Climate Data Standards
Topics: hdf5, human-cell-atlas, ndarray, zarr, bioinformatics, dna, gatk, genome, genomics, ngs and 29 more

Ben Schroeter [email protected]

OST Projects: 1
Categories: Climate Change
Sub Categories: Earth and Climate Modeling
Topics:

Fiona Spuler [email protected]

OST Projects: 1
Categories: Climate Change
Sub Categories: Climate Data Processing and Analysis
Topics:

garciam [email protected]

OST Projects: 1
Categories: Climate Change
Sub Categories: Climate Data Processing and Analysis
Topics:

Damien Allen [email protected]

OST Projects: 1
Categories: Climate Change
Sub Categories: Climate Data Access and Visualization
Topics: pep8, ruff, rustpython, static-analysis, static-code-analysis, style-guide

Manas Sahni [email protected]

OST Projects: 1
Categories: Climate Change
Sub Categories: Earth and Climate Modeling
Topics: climate-science, weather

Teagan King [email protected]

OST Projects: 1
Categories: Climate Change
Sub Categories: Earth and Climate Modeling
Topics: cesm, climate, clm, ecosystem, hydrology, land, land-surface-model, ncar, community, datamodeling and 6 more

Bowen Fang [email protected]

OST Projects: 1
Categories: Climate Change
Sub Categories: Earth and Climate Modeling
Topics: cesm, climate, clm, ecosystem, hydrology, land, land-surface-model, ncar

Yang Liu [email protected]

OST Projects: 1
Categories: Climate Change
Sub Categories: Integrated Assessment and Climate Policy
Topics: china, climate, coupled-human-natural-systems, economics, gcam, gcam-china, human-earth-system, integrated-assessment-model, land

John Truesdale [email protected]

OST Projects: 1
Categories: Climate Change
Sub Categories: Earth and Climate Modeling
Topics: cesm, climate, clm, ecosystem, hydrology, land, land-surface-model, ncar

Nan Rosenbloom [email protected]

OST Projects: 1
Categories: Climate Change
Sub Categories: Earth and Climate Modeling
Topics: cesm, climate, clm, ecosystem, hydrology, land, land-surface-model, ncar

Damrongsak Wirasaet [email protected]

OST Projects: 1
Categories: Climate Change
Sub Categories: Natural Hazard and Storm
Topics:

Dylan Reynolds [email protected]

OST Projects: 1
Categories: Climate Change, Sustainable Development
Sub Categories: Climate Downscaling, Education
Topics: climate, downscaling, icar, precipitation, regional-climate-model

Stefan Weissenberger [email protected]

OST Projects: 1
Categories: Climate Change
Sub Categories: Earth and Climate Modeling
Topics: climate-science, weather

John Readey [email protected]

OST Projects: 1
Categories: Climate Change
Sub Categories: Climate Data Standards
Topics: asyncio, hdf5, multi-dimensional, scientific-data, cloud-computing, file-format, h5py

Alex Goberna [email protected]

OST Projects: 1
Categories: Climate Change
Sub Categories: Climate Data Access and Visualization
Topics: chirps, climate, climateserv, emodis, esi, imerg, ndvi, servir, servirglobal

Johannes Horak [email protected]

OST Projects: 1
Categories: Climate Change, Sustainable Development
Sub Categories: Climate Downscaling, Education
Topics: climate, downscaling, icar, precipitation, regional-climate-model

Patrik Bohlinger [email protected]

OST Projects: 1
Categories: Climate Change, Sustainable Development
Sub Categories: Climate Downscaling, Education
Topics: climate, downscaling, icar, precipitation, regional-climate-model

Tom Enzminger [email protected]

OST Projects: 1
Categories: Climate Change, Sustainable Development
Sub Categories: Climate Downscaling, Education
Topics: climate, downscaling, icar, precipitation, regional-climate-model

Trude Eidhammer trude@yslogin1.(none)

OST Projects: 1
Categories: Climate Change, Sustainable Development
Sub Categories: Climate Downscaling, Education
Topics: climate, downscaling, icar, precipitation, regional-climate-model

Damian Rouson [email protected]

OST Projects: 1
Categories: Climate Change, Sustainable Development
Sub Categories: Climate Downscaling, Education
Topics: climate, downscaling, icar, precipitation, regional-climate-model, coarrays, multi-physics, pde-solver, caf, coarray and 18 more

Jonas Ganderton [email protected]

OST Projects: 1
Categories: Climate Change
Sub Categories: Earth and Climate Modeling
Topics:

Sungduk Yu [email protected]

OST Projects: 1
Categories: Climate Change
Sub Categories: Climate Data Processing and Analysis
Topics:

DavidGrumm-NOAA [email protected]

OST Projects: 1
Categories: Climate Change
Sub Categories: Earth and Climate Modeling
Topics: gdas, gefs, gfs, jedi, s2s, ufs

Anna Pokorska [email protected]

OST Projects: 1
Categories: Climate Change
Sub Categories: Integrated Assessment and Climate Policy
Topics:

Baptiste Hamon [email protected]

OST Projects: 1
Categories: Climate Change
Sub Categories: Climate Data Processing and Analysis
Topics: anuclim, climate-analysis, climate-science, icclim, netcdf4, xclim

Joshua Pan [email protected]

OST Projects: 1
Categories: Climate Change
Sub Categories: Climate Data Processing and Analysis
Topics: geoscience, ugrid, unstructured-grids

Alex Jonko [email protected]

OST Projects: 1
Categories: Climate Change
Sub Categories: Earth and Climate Modeling
Topics: climate, climate-analysis, climate-data, climate-model, climate-model-evaluation, climate-models, climate-science, climate-variability

Alex Jonko [email protected]

OST Projects: 1
Categories: Climate Change
Sub Categories: Earth and Climate Modeling
Topics: climate, climate-analysis, climate-data, climate-model, climate-model-evaluation, climate-models, climate-science, climate-variability

Cyprien Bosserelle [email protected]

OST Projects: 1
Categories: Climate Change
Sub Categories: Natural Hazard and Storm
Topics: adaptive, flood, inundation, rain, river, storm, surge, tsunami, convert, swan and 7 more

Ian Harman [email protected]

OST Projects: 1
Categories: Climate Change
Sub Categories: Earth and Climate Modeling
Topics:

Ian Harman [email protected]

OST Projects: 1
Categories: Climate Change
Sub Categories: Earth and Climate Modeling
Topics:

Catarina Costa [email protected]

OST Projects: 1
Categories: Climate Change
Sub Categories: Natural Hazard and Storm
Topics: cluster, earthquakes, hazard, hazard-assessment, openquake, openquake-engine, psha, risk-analysis, risk-assessment, seismic

Aman Tejaswi [email protected]

OST Projects: 1
Categories: Climate Change
Sub Categories: Natural Hazard and Storm
Topics:

Kian Huang [email protected]

OST Projects: 1
Categories: Climate Change
Sub Categories: Climate Data Processing and Analysis
Topics:

WangRuiWr [email protected]

OST Projects: 1
Categories: Climate Change
Sub Categories: Integrated Assessment and Climate Policy
Topics: china, climate, coupled-human-natural-systems, economics, gcam, gcam-china, human-earth-system, integrated-assessment-model, land

jiawdo [email protected]

OST Projects: 1
Categories: Climate Change
Sub Categories: Integrated Assessment and Climate Policy
Topics: china, climate, coupled-human-natural-systems, economics, gcam, gcam-china, human-earth-system, integrated-assessment-model, land

ShenJX21 [email protected]

OST Projects: 1
Categories: Climate Change
Sub Categories: Integrated Assessment and Climate Policy
Topics: china, climate, coupled-human-natural-systems, economics, gcam, gcam-china, human-earth-system, integrated-assessment-model, land

Johannes Gütschow [email protected]

OST Projects: 1
Categories: Climate Change
Sub Categories: Integrated Assessment and Climate Policy
Topics: climate, emissions, climate-change, climate-data, climate-policy

Aman Tejaswi [email protected]

OST Projects: 1
Categories: Climate Change
Sub Categories: Natural Hazard and Storm
Topics:

thivinanandh [email protected]

OST Projects: 1
Categories: Climate Change
Sub Categories: Natural Hazard and Storm
Topics: debrisflow, flood, landslide

Sergei Lebedev [email protected]

OST Projects: 1
Categories: Climate Change
Sub Categories: Earth and Climate Modeling
Topics: formatter, jax, static-analysis, static-code-analysis, typechecker, typing, research, attention, transformers, vision-transformer and 36 more

awarde96 [email protected]

OST Projects: 1
Categories: Climate Change
Sub Categories: Climate Data Processing and Analysis
Topics: earthkit

Tim Campbell [email protected]

OST Projects: 1
Categories: Climate Change
Sub Categories: Earth and Climate Modeling
Topics: earth-system-model, earth-system-modeling, earth-system-modeling-framework, earth-system-modelling, esmf, esmx, model-coupling, numerical-weather-prediction, nuopc, nwp and 1 more

Xinqi Jack Wang [email protected]

OST Projects: 1
Categories: Climate Change
Sub Categories: Earth and Climate Modeling
Topics: earth-system-model, earth-system-modeling, earth-system-modeling-framework, earth-system-modelling, esmf, esmx, model-coupling, numerical-weather-prediction, nuopc, nwp and 1 more

Fei Liu [email protected]

OST Projects: 1
Categories: Climate Change
Sub Categories: Earth and Climate Modeling
Topics: earth-system-model, earth-system-modeling, earth-system-modeling-framework, earth-system-modelling, esmf, esmx, model-coupling, numerical-weather-prediction, nuopc, nwp and 1 more

Deng-Shun Chen [email protected]

OST Projects: 1
Categories: Climate Change
Sub Categories: Earth and Climate Modeling
Topics: earth-system-model, earth-system-modeling, earth-system-modeling-framework, earth-system-modelling, esmf, esmx, model-coupling, numerical-weather-prediction, nuopc, nwp and 1 more

Jussi Leinonen [email protected]

OST Projects: 1
Categories: Climate Change
Sub Categories: Earth and Climate Modeling
Topics: climate-science, weather

Gerhard Theurich [email protected]

OST Projects: 1
Categories: Climate Change
Sub Categories: Earth and Climate Modeling
Topics: earth-system-model, earth-system-modeling, earth-system-modeling-framework, earth-system-modelling, esmf, esmx, model-coupling, numerical-weather-prediction, nuopc, nwp and 1 more

Brice Womack [email protected]

OST Projects: 1
Categories: Climate Change
Sub Categories: Earth and Climate Modeling
Topics: earth-system-model, earth-system-modeling, earth-system-modeling-framework, earth-system-modelling, esmf, esmx, model-coupling, numerical-weather-prediction, nuopc, nwp and 1 more

Ryan Schmidt [email protected]

OST Projects: 1
Categories: Climate Change
Sub Categories: Earth and Climate Modeling
Topics: antlr, astronomy, dicom, eigen3, fits-files, geophysics, grib, gsl-library, hdf, hdf5 and 37 more

Robert Oehmke [email protected]

OST Projects: 1
Categories: Climate Change
Sub Categories: Earth and Climate Modeling
Topics: earth-system-model, earth-system-modeling, earth-system-modeling-framework, earth-system-modelling, esmf, esmx, model-coupling, numerical-weather-prediction, nuopc, nwp and 1 more

Michael Young [email protected]

OST Projects: 1
Categories: Climate Change
Sub Categories: Earth and Climate Modeling
Topics: earth-system-model, earth-system-modeling, earth-system-modeling-framework, earth-system-modelling, esmf, esmx, model-coupling, numerical-weather-prediction, nuopc, nwp and 1 more

Max Suarez [email protected]

OST Projects: 1
Categories: Climate Change
Sub Categories: Earth and Climate Modeling
Topics: earth-system-model, earth-system-modeling, earth-system-modeling-framework, earth-system-modelling, esmf, esmx, model-coupling, numerical-weather-prediction, nuopc, nwp and 1 more

Oliver Hennigh [email protected]

OST Projects: 1
Categories: Climate Change
Sub Categories: Earth and Climate Modeling
Topics: convolutional-neural-network, convolutional-neural-networks, deep-neural-networks, deeplearning, distributed, python-framework, python-tensorflow, tensorflow2, tf-module, climate-science and 1 more

gertln [email protected]

OST Projects: 1
Categories: Climate Change
Sub Categories: Earth and Climate Modeling
Topics: climate-science, weather

Ana Ordonez [email protected]

OST Projects: 1
Categories: Climate Change
Sub Categories: Climate Data Processing and Analysis
Topics:

Parker Schuh [email protected]

OST Projects: 1
Categories: Climate Change
Sub Categories: Earth and Climate Modeling
Topics: c4, jax, large-language-models, model-flops, parallelism, research, deep-reinforcement-learning, reinforcement-learning, transformer, convolutional-neural-network and 11 more

Éric Lemoine [email protected]

OST Projects: 1
Categories: Climate Change
Sub Categories: Natural Hazard and Storm
Topics: closure-compiler, typechecking, closure, closure-library, goog, 3D, three.js, geomapfish, geotools, jasperreports and 10 more

Christine P. Chai [email protected]

OST Projects: 1
Categories: Climate Change
Sub Categories: Climate Data Standards
Topics: causal-inference, causality, econometrics, economics, treatment-effects

Dominik Stiller [email protected]

OST Projects: 1
Categories: Climate Change
Sub Categories: Climate Data Processing and Analysis
Topics:

Marco Mazzolini [email protected]

OST Projects: 1
Categories: Climate Change
Sub Categories: Climate Downscaling
Topics: climate, climate-science, dem, downscaling, era5, geoscience

GRI-Admin [email protected]

OST Projects: 1
Categories: Climate Change
Sub Categories: Natural Hazard and Storm
Topics:

Pooja Khosla [email protected]

OST Projects: 1
Categories: Climate Change
Sub Categories: Natural Hazard and Storm
Topics:

Luke Parkinson [email protected]

OST Projects: 1
Categories: Climate Change
Sub Categories: Natural Hazard and Storm
Topics:

Rose Pearson [email protected]

OST Projects: 1
Categories: Climate Change
Sub Categories: Natural Hazard and Storm
Topics:

Xander Cai [email protected]

OST Projects: 1
Categories: Climate Change
Sub Categories: Natural Hazard and Storm
Topics:

Luke Parkinson [email protected]

OST Projects: 1
Categories: Climate Change
Sub Categories: Natural Hazard and Storm
Topics:

Rose Pearson [email protected]

OST Projects: 1
Categories: Climate Change
Sub Categories: Natural Hazard and Storm
Topics:

UOCNT [email protected]

OST Projects: 1
Categories: Climate Change
Sub Categories: Natural Hazard and Storm
Topics:

Angus L [email protected]

OST Projects: 1
Categories: Climate Change
Sub Categories: Natural Hazard and Storm
Topics:

martin20494 [email protected]

OST Projects: 1
Categories: Climate Change
Sub Categories: Natural Hazard and Storm
Topics:

ahagen [email protected]

OST Projects: 1
Categories: Climate Change
Sub Categories: Integrated Assessment and Climate Policy
Topics:

Michael Anstett [email protected]

OST Projects: 1
Categories: Climate Change
Sub Categories: Earth and Climate Modeling
Topics:

MrQQish [email protected]

OST Projects: 1
Categories: Climate Change
Sub Categories: Natural Hazard and Storm
Topics: catastrophe-model, catastrophe-modelling, hazard, insurance, loss, reinsurance, vulnerability

Hongyu Chen [email protected]

OST Projects: 1
Categories: Climate Change
Sub Categories: Climate Data Processing and Analysis
Topics:

Ian Harman [email protected]

OST Projects: 1
Categories: Climate Change
Sub Categories: Earth and Climate Modeling
Topics:

Ian Harman [email protected]

OST Projects: 1
Categories: Climate Change
Sub Categories: Earth and Climate Modeling
Topics:

Guillaume Vernieres [email protected]

OST Projects: 1
Categories: Climate Change
Sub Categories: Earth and Climate Modeling
Topics: gdas, gefs, gfs, jedi, s2s, ufs

Desmet Quentin [email protected]

OST Projects: 1
Categories: Climate Change
Sub Categories: Earth and Climate Modeling
Topics: climate-model, regional-climate-model

ICON developers [email protected]

OST Projects: 1
Categories: Climate Change
Sub Categories: Earth and Climate Modeling
Topics:

Renu [email protected]

OST Projects: 1
Categories: Climate Change
Sub Categories: Climate Data Processing and Analysis
Topics:

cblakely97 [email protected]

OST Projects: 1
Categories: Climate Change
Sub Categories: Natural Hazard and Storm
Topics:

Jan Ivar Korsbakken [email protected]

OST Projects: 1
Categories: Climate Change
Sub Categories: Integrated Assessment and Climate Policy
Topics: energy-systems, iamc-format, integrated-assessment, integrated-assessment-scenarios, macro-energy, scenario-data, timeseries-format

FILHOL Simon [email protected]

OST Projects: 1
Categories: Climate Change
Sub Categories: Climate Downscaling
Topics: climate, climate-science, dem, downscaling, era5, geoscience

katadam [email protected]

OST Projects: 1
Categories: Climate Change
Sub Categories: Natural Hazard and Storm
Topics: flood, flood-monitoring, floods, surface-water, synthetic-aperture-radar