Related by context. All words. (Click for frequent words.) 63 Atmospheric Research 60 High Altitude Observatory 56 ESRL 55 CIRES 55 LLNL 55 Geophysical Fluid Dynamics 54 supercomputer simulations 54 Gerald Meehl 53 NSF TeraGrid 53 NCAR scientist 53 NSIDC 53 numerical simulations 53 Mausumi Dikpati 53 NERSC 52 NASA Goddard 52 PNNL 52 NASA GISS 52 Yun Qian 52 NEXRAD radar 52 Dikpati 52 VORTEX2 52 NREL 51 NOAA 51 Sheldon Drobot 51 Mesoscale 51 ORNL 51 Space Physics 51 TeraGrid 51 Weiqing Han 51 Climate Prediction 50 Bette Otto Bliesner 50 Climate Impacts Group 50 Atmospheric Science 50 Global Precipitation Climatology 50 Solar Terrestrial Physics 49 Tropical Meteorology Project 49 SLOSH 49 Astrobiology Institute 49 Konrad Steffen 49 Weather Prediction 49 Severe Storms Lab 49 CarbonTracker 49 Cynthia Rosenzweig 49 MM5 49 Numerical Weather 49 CloudSat 49 Aiguo Dai 49 Forschungszentrum Jülich 48 NASA Exobiology Program 48 Henrik Svensmark 48 National Severe Storms 48 HIAPER 48 NIST 48 UCAR 48 computer simulations 48 neutron spectrometer 48 AERONET 48 Ocean Observing 48 Philip Klotzbach 48 GLBRC 48 climate modeler 48 atmospheric chemistry 48 UNAVCO 48 CReSIS 48 Lamont Doherty 48 Prediction NWP 48 ECMWF 47 mesoscale 47 Tropical Rainfall Measuring 47 CU Boulder Laboratory 47 composite infrared spectrometer 47 Romero Lankao 47 NASA Exobiology 47 NSRL 47 Southern Oscillation 47 AFRL 47 Environmental Sciences CIRES 47 Paleoclimate 47 EarthSat 47 TRMM 47 CIMSS 47 Meteorological Laboratory 47 Renewable Energy Laboratory NREL 47 Scripps Oceanography 47 NEXRAD 47 USGS 47 Long Term Ecological 47 Nasa Ames 47 Ionospheric 47 terascale 47 Julienne Stroeve 46 WindLogics 46 Natalie Mahowald 46 LBNL 46 National Climactic Data 46 Carnegie Institution Geophysical 46 Kelvin Droegemeier 46 Composite Infrared Spectrometer 46 Space Physics LASP 46 Total Ozone Mapping 46 Claudia Tebaldi 46 El Niño Southern Oscillation 46 Climatologist 46 Climatic Research 46 CHAVI 46 NCEAS 46 Severe Storms Laboratory 46 Renewable Energy Laboratory 46 BioServe Space Technologies 46 HiRISE 46 solar irradiance 46 SDSC 46 Kathy Yelick 46 Coweeta 46 Atmospheric Physics 46 Pierre Auger Observatory 46 Caspar Ammann 46 EPOXI mission 46 Atmospheric Sciences 46 NOAA Climate Prediction 46 Research Institute NSBRI 46 Risø DTU 46 journal Geophysical Research 46 AATSR 46 EarthScope 46 Synte Peacock 46 supercomputer 46 Kevin Trenberth climate 46 Noaa 46 Nasa Goddard Space 46 GISS 46 Natural Hazards Research 46 SciDAC 46 Oklahoma Climatological Survey 46 Atmospheric Administration NOAA 46 Michael Studinger 46 atmospheric sciences 46 STScI 46 J. Klotzbach 46 radiosondes 46 SOEST 46 Fairen 46 AMASE 46 Landsat satellite 46 AWS Truewind 46 climate modelers 46 NASA Goddard Space 45 IceCube 45 planetary geologist 45 Decadal Survey 45 EnergyPlus 45 LASP 45 Margarita Marinova 45 Airborne Laser Mapping 45 Climate Experiment GRACE 45 cyberinfrastructure 45 Navy Fleet Numerical 45 KNMI 45 Advanced Microwave Scanning 45 numerical modeling 45 San Diego Supercomputer 45 El Nino La Nina 45 situ measurements 45 Cray XT3 45 Cray supercomputer 45 Remote Sensing 45 CALIPSO 45 Landsat satellites 45 National Oceanic 45 Applied Meteorology 45 Mars Climate Sounder 45 BlueGene L 45 RENCI 45 Otto Bliesner 45 ICESat 45 Jay Boisseau 45 Landsea 45 Mission TRMM satellite 45 SSRL 45 RPWS 45 Ocean Observatories Initiative 45 Prasad Gogineni 45 ARkStorm 45 ENSO 45 SeaWiFS 45 CSIRO Wealth 45 CCSM 45 Ames Laboratory 45 USDA ARS 45 Ulysses spacecraft 45 ASC MSRC 45 Space Studies GISS 45 Qiang Fu 45 Ted Scambos glaciologist 45 Institute NSBRI 45 Conductivity Analyzer 45 Earth Observing 45 Climatology 45 Makiko Sato 45 GTRI 45 Geological Survey USGS 45 CIRS 45 Cray XD1 45 Tropical Meteorology 45 NLSI 45 GFDL 45 climateprediction.net 45 NESCent 45 HWRF 45 Risø 45 NSSTC 45 Robock 45 Accelerator Mass Spectrometry 45 University Lamont Doherty 45 Linux Networx 45 Cyberinfrastructure 45 Klaus Wolter 45 Measuring Mission TRMM 44 NASA Jet Propulsion Lab 44 USGS EROS 44 QuikSCAT 44 WindTracer 44 ICESS 44 Oceanography Centre 44 Betsy Weatherhead 44 EPSCoR 44 Meteorology Ionosphere 44 C#B# 44 GFZ German 44 Hydrospheric 44 supercomputing 44 Integrated Nanotechnologies 44 Atmospheric Oceanic 44 National Climatic Data 44 SERVIR 44 climatologists 44 Planetary Science Institute 44 CU Boulder 44 Risoe 44 WHOI 44 ESA Envisat 44 JHU APL 44 UNEP WCMC 44 STEREO spacecraft 44 Earth Connection Coronal 44 Paul Kocin 44 NICHD 44 MIRTHE 44 Supercomputing 44 GFZ 44 RSMAS 44 paleoecologist 44 SGI Altix 44 altimetry 44 Southampton NOCS 44 mesosphere 44 SECCHI 44 Philip Mote 44 scatterometer 44 ADM Aeolus 44 Steward Observatory 44 Berkeley Lab 44 Phil Klotzbach 44 Solar TErrestrial RElations Observatory 44 Helioseismic 44 Tod Strohmayer 44 meteorological satellites 44 Supercomputing Applications NCSA 44 binary asteroid 44 Infrared Pathfinder Satellite 44 NOAA Storm Prediction 44 Svante Arrhenius 44 GOES R 44 Federally Funded Research 44 AIRS instrument 44 ESnet 44 paleoclimate 44 Mission TRMM 44 LTER 44 ESA Envisat satellite 44 COAPS 44 Louis Stodieck 44 EPRI 44 atmospheric scientist 44 SwRI 44 Atmospheric Administration 44 Climate Prediction Center 44 NASA Ames 44 remotely sensed 44 SDSS III 44 Nansen Environmental 44 Nanophase Materials Sciences 44 Smithsonian astronomer 44 E sciencE 44 COET 44 NASA Goddard Spaceflight 44 Alaska Fairbanks Geophysical 44 Jülich 44 Ångström 44 Atmospheric Radiation 44 ATLAS experiment 44 Ecological Analysis 44 Laboratory MBL 44 Testbed 43 Vehicles Directorate 43 TRMM satellite 43 JUGENE 43 LandVoyage.com 43 Droegemeier 43 Climate Modeling 43 NRAO 43 Scientific Computing 43 IceBridge 43 ALCF 43 Atmospheric Administration Climate Prediction 43 Atmospheric Administration Storm Prediction 43 supercomputers 43 CIESIN 43 PRACE 43 Cryosphere 43 Biogeochemistry 43 tropical cyclones 43 NOAA Geophysical Fluid 43 USGS geologist 43 visit http:/saturn.jpl.nasa.gov 43 Roshydromet 43 atmospheric circulation 43 Erich Roeckner 43 climatologist 43 computational 43 ICECAP 43 Josh Wurman 43 neutrino experiment 43 NOAO 43 radiative transfer 43 Weather Forecasts 43 MODIS 43 JILA 43 Trenberth 43 Hoerling 43 C NOFS 43 Jacques Laskar 43 Spirae 43 VORTRAC 43 Hans von Storch 43 KIPAC 43 Marika Holland 43 NSBRI 43 Multiscale 43 beamline #.#.# 43 Institute SwRI 43 Roger Pielke Sr. 43 remote sensing 43 petascale 43 DEISA 43 WSR #D 43 eScience 43 Finnish Meteorological 43 Geospace Sciences 43 Observing System 43 Weather Forecasting 43 Weatherzone 43 Environmental Prediction 43 Earthscope 43 GOES satellites 43 Kossin 43 atmospheric oceanic 43 9NEWS Meteorologist Marty Coniglio 43 Convective 43 Hydrometeorological Prediction Center 43 polar stratospheric 43 EPOCh 43 Scripps Institution 43 Interior Laboratory GRAIL 43 Weather Whys 43 hydrometeorologist 43 Arctic oscillation 43 Simone Tilmes 43 Rossby waves 43 Roger Pielke Jr 43 Jianjun Yin 43 Exascale 43 Zeebe 43 NASA GSFC 43 Mars Color Imager 43 forecaster Phil Klotzbach 43 International HapMap Consortium 43 meteorologists 43 Laboratories NREL 43 FutureGrid 43 computational simulations 43 Collider Detector 43 cloud microphysics 43 laser altimeter 43 Eran Hood 43 computational fluid dynamics 43 Calit2 43 CU Boulder LASP 43 Pacific Decadal Oscillation PDO 43 Nolan Doesken 43 NASA QuikScat satellite 43 Goddard Space Flight 43 Heterodyne Instrument 43 HECToR 43 Pasachoff 43 Abdalati 43 Rensselaer Nanotechnology 43 Atmospheric Administration Geophysical Fluid 43 NASA WMAP 43 Virtual Planetary Laboratory 43 Natural Hazards 43 Geological Survey 43 NASA Aqua 43 Johns Hopkins Applied Physics 43 Tumor Sequencing Project 43 THEMIS satellites 43 Alaska Volcano Observatory 43 ENVISAT 43 Kharecha 42 Astrophysical 42 Oklahoma Mesonet 42 International Geosphere Biosphere 42 Medium Range 42 Boston Micromachines 42 Pittsburgh Supercomputing 42 Canadell 42 Neutral Mass Spectrometer 42 Cassini magnetometer 42 Cloud Aerosol Lidar 42 LIPID MAPS 42 Planck satellite 42 Nature Geoscience 42 Glaciology 42 Sandia 42 NCDC 42 Bindschadler 42 extratropical cyclones 42 SORCE 42 climate modellers 42 geoprocessing 42 IODP 42 Hypersonics 42 Son Nghiem 42 author Gerald Meehl 42 MARSIS 42 Teragrid 42 Planetary Geology 42 Caltech JPL 42 William Bottke 42 World Meteorological Organisation 42 WMO 42 Landsat 42 microwave radiometer 42 Forschungszentrum Dresden Rossendorf FZD 42 Tuleya 42 Atmospheric 42 Shuttle Radar Topography 42 MINOS 42 Magnetic Imager HMI 42 Geophysical Research 42 lidar 42 Laser Interferometer Gravitational Wave 42 USArray 42 Astrophysics Cambridge Mass. 42 Severe Weather Expert 42 tropospheric 42 INMS 42 CESM 42 Hamish Pritchard 42 Computational Sciences NCCS 42 Solar Observatory 42 Krimigis 42 SETI @ home 42 Met Office 42 SIRAL 42 Tropical Prediction 42 Computational 42 ESA Planck 42 Ultracold Atoms 42 3TIER 42 National Laboratory LBNL 42 USGS Earthquake Hazards 42 Hakan Svedhem 42 INSTAAR 42 Microscopy Electrochemistry 42 Mid Infrared 42 NASA astrobiology 42 Physical Oceanography 42 9NEWS Meteorologist Ashton Altieri 42 Computational Fluid Dynamics CFD 42 computational chemistry 42 Altix 42 Space Telescope Science 42 Mark Serreze 42 Jianyu Huang 42 infrared astronomy 42 MBARI 42 Doppler lidar 42 HIV AIDS Vaccine Immunology 42 CoCoRaHS 42 IPY 42 SESE 42 ® Altix 42 Xcel Energy SmartGridCity 42 IIASA 42 landfalling 42 National Geodetic Survey 42 Landsat imagery 42 Webb Telescope 42 paleoclimatology 42 Institute STScI 42 THEMIS 42 Atmospheric Chemistry 42 Rosenstiel School 42 Meteorological Society 42 MJO 42 Nature Geoscience journal 42 RHESSI 42 Nature Geosciences 42 NBII 42 NSLS 42 Onyx4 42 ANDRILL 42 tropopause 42 Petascale Computing 42 Dry Valleys 42 Electron Microscopy 42 Technology Laboratory NETL 42 Soils Lab 42 Joint Hydrographic Center 42 Computational Fluid Dynamics 42 SGI Altix ICE 42 Infrared Astronomy SOFIA 42 DISR 42 VIRTIS instrument 42 Argo floats 42 Geophysical Laboratory 42 multi decadal 42 Planetary Fourier Spectrometer PFS 42 Heliophysics 42 computational fluid dynamics CFD 42 EarthCARE 42 NASA Atmospheric Infrared 42 Aquasar 42 Benjamin Santer 42 National Laboratory PNNL 42 radiosonde 42 IBM supercomputer 42 Stephen Mojzsis 41 Geophysical Institute 41 Kepler Mission 41 Thiemens 41 MareNostrum 41 Kevin Trenberth 41 FortZED 41 Doesken 41 NCEP 41 Astralux 41 El Nino Southern Oscillation 41 Nevada Seismological Laboratory 41 ChemCam 41 LRO spacecraft 41 Niels Bohr Institute 41 Climateprediction.net 41 IGBP 41 Multiscale Modeling 41 Imaging Spectroradiometer MODIS instrument 41 NASA Langley 41 Laboratory SSRL 41 Micro Photonics 41 Solar Dynamics Observatory 41 NASA Stratospheric Observatory 41 upper troposphere 41 National Drought Mitigation 41 IOOS 41 climate modeller 41 Weather Forecasts ECMWF 41 vegetation greenness 41 Wallops Island Va. 41 twin STEREO spacecraft 41 RAINEX 41 Rignot 41 DOE JGI 41 Spectroradiometer 41 Data Buoy 41 Microbiologist Cynan Ellis 41 Kristin Laidre 41 AWS Truepower 41 National AeroSpace Training 41 computational methods 41 Theodore Fujita 41 De Pontieu 41 Alberto Behar 41 Stuart Gaffin 41 Vortex2 41 NuSTAR 41 UW Applied Physics 41 NRCan 41 Lunar Reconnaissance Orbiter Camera 41 Henry Margusity 41 OptIPuter 41 oceanic circulation 41 Data Assimilation 41 Robert Vajtai 41 GOES N 41 NARAC 41 NOvA 41 Astrophysical Research 41 Applied Physics Lab 41 DOE Brookhaven National 41 GeoForschungsZentrum Potsdam 41 Waleed Abdalati 41 Global Differential GPS 41 WMAP satellite 41 Terrestrial Magnetism 41 Computer simulations 41 Geoscience Laser Altimeter 41 PlanetQuest 41 Louis Uccellini director 41 Todey 41 Baryon Oscillation Spectroscopic Survey 41 Klotzbach 41 Constellation Observing 41 CRISM 41 Magnetospheric 41 Doppler radars 41 AEgis 41 cryosphere 41 radiometers 41 IntelliDrive SM 41 eyewall replacement 41 cosmic ray flux 41 VIMS 41 Ross Salawitch 41 HFIR 41 solar corona 41 Jülich Research 41 LIGO 41 Roger Pielke Jr. 41 Cassini Ion 41 numerical simulation 41 World Meteorological Organization 41 NASA Nebula 41 reanalysis 41 nowcasting 41 MODIS Rapid Response 41 SRON Netherlands Institute 41 Cray XT5m 41 Richter Menge 41 Normalized Difference Vegetation 41 simulations 41 Cassini radar 41 Nondestructive Evaluation 41 powerful supercomputers 41 CfA 41 NASA Infrared Telescope 41 radar altimetry 41 Collaboratory 41 Volatile Evolution 41 computational sciences 41 Thermal Emission Spectrometer 41 CubeSat 41 Roger Pielke 41 Velicogna 41 Subsonic Rotary Wing 41 Research LTER 41 SMOS 41 Computational Sciences 41 NASA Astrobiology 41 Cray XT4 41 Ulrich Dahmen 41 Jay Zwally 41 ion microprobe 41 NCAR scientist Synte Peacock 41 SGI Onyx 41 WLCG 41 Wistar Institute Vaccine 41 Keck Observatory 41 Gaetano Di Achille 41 molecular dynamics 41 noctilucent clouds 41 NIRCam 41 Spaceweather.com 41 TheWeatherSpace.com 41 linear collider 41 atmospheric physicist 41 Energy Transformed Flagship 41 Mission SRTM 41 ENSO El Nino 41 FORCAST 41 Drew Shindell 41 polar vortex 41 cosmic ray 41 NERSC Lawrence Berkeley 41 Météo France 41 Coast Guard icebreaker Healy 41 Mike Wankum 41 Cray X1E 41 van der Leeuw 41 GIND 41 ocean salinity 41 GridWise 41 EF Scale 41 AFOSR 41 NETL 41 Decadal 41 principal investigator 41 Great Lakes Bioenergy 41 Geologic Survey 41 Trey Ideker 41 Fraunhofer IFF 41 Sandia National 41 RealClimate 41 OOI 41 Ozone Monitoring 41 INPE 41 multiscale 41 Storm Prediction 41 HPCMP 41 Mullard Space Science 41 George Seielstad 41 Top#.org 41 Tropical Meteorology IITM 41 NOAA ESRL 41 Thermal Emission 41 Argonne 41 NASA STEREO 41 PUE metric 41 LIGO Scientific Collaboration 41 Instrument OMI 40 Cosmological Physics 40 Computational Biology 40 Computational Science 40 dropsondes 40 Laboratory LANL 40 Eric Rignot 40 Solar Backscatter Ultraviolet 40 equatorial Pacific Ocean 40 Joshua Wurman 40 Greenbelt Maryland 40 Fermi Telescope 40 MIT Haystack Observatory 40 IBIS AMI 40 Shepson 40 Sandhage 40 E sciencE EGEE 40 Meteorological 40 GKSS Research 40 Pielke 40 ESMF 40 hydrologic cycle 40 Weatherwatch 40 greenhouse warming 40 Laboratory JPL 40 Aeronomy 40 DIXI 40 JBEI 40 weak gravitational lensing 40 AIAA 40 coronal magnetic field 40 streamflow 40 Meteorology 40 SURAgrid 40 Geological Survey Hawaiian Volcano 40 Cray XT6 40 convective clouds 40 Infrared Astronomy 40 Atmospheric Administration Noaa 40 planetary scientist 40 British Antarctic Survey 40 ESA CryoSat 40 SAS SPSS 40 ENCODE 40 TU Delft 40 SDSS II 40 Atmospheric Infrared Sounder AIRS 40 NIAR 40 Tad Pfeffer 40 State Climatologist 40 El Niño La Niña 40 Climatology Office 40 NASA Cosmic Background 40 Structural Biology 40 Nikku Madhusudhan 40 Max Planck Institute 40 Madden Julian Oscillation 40 Syun Ichi Akasofu 40 UA Lunar 40 BlueGene P 40 beamline 40 Jerry Mahlman 40 waves droughts floods 40 Biomedical Computing 40 Joseph D' Aleo 40 BaBar 40 PIRE 40 Atmospheric Administration NOAA GOES 40 subglacial 40 Margaret Leinen 40 Abaqus FEA software 40 Gemini Observatory 40 Limnology 40 MCEER 40 MRSEC 40 mid latitudes 40 SRTM 40 Synthetic Aperture Radar SAR 40 MicroFUN 40 Paleobiology Database 40 Research Resources NCRR 40 Astrophysics MOA 40 paleoclimatologists 40 deep convective clouds 40 LDCM 40 Gina Cherundolo 40 Lumerical 40 Randy Cerveny 40 Cosmochemistry 40 Synthetic Aperture Radar 40 Gravity Recovery 40 Active Archive 40 S. Lindzen 40 glaciology 40 teleconnections 40 http:/saturn.jpl.nasa.gov 40 NASA ICESat 40 Wick Haxton 40 EUROCONTROL 40 OpenMM 40 Hal Levison 40 NASA Tropical Rainfall 40 Peter Jenniskens 40 INBRE 40 NOAA Undersea Research 40 LSST 40 climatology 40 FORMOSAT 40 HiRISE camera 40 Solar Radiation 40 Scatterometer 40 USTAR 40 accuweather.com 40 LANL 40 scanning tunneling microscopy 40 Mars Surveyor 40 Gabriele Hegerl 40 Subsonic Fixed Wing 40 Petascale 40 El Ninos 40 GEOSS 40 V. Ramanathan 40 HPCS 40 polar orbiting 40 Hegerl 40 NSBRI funded 40 Tendril Networks 40 La Niña pattern 40 troposphere 40 magnetic reconnection 40 hydrological modeling 40 Interfacial Catalysis 40 Foundation NSF 40 Inez Fung 40 RAD Lab 40 Earth Observatory 40 atmospheric chemist 40 APXS 40 Travis Huxman 40 Hao Yan 40 Bruce Wielicki 40 Nowcasting 40 Earth Observation satellites 40 Geostationary Operational Environmental 40 CERT CC 40 Phoenix Microscopy Electrochemistry 40 ionospheric 40 Joe D' Aleo 40 La Ninas 40 Research INPE 40 Vexcel Corporation 40 MDA EarthSat 40 Cluster Computing 40 hydrometeorological 40 MITRE 40 metagenomic 40 FFRDC 40 decadal 40 Phil Klotzbach member 40 Nanoscale Materials 40 Institute JGI 40 ASPERA 40 Technology NTNU 40 Fat Spaniel 40 Enabling Grids 40 Project BudBurst 40 radio occultation 40 EnerNex 40 Metop 40 Satellite Aided Tracking 40 Naval Oceanographic 40 Andrew Dessler 40 AB SCIEX QTRAP 40 Harvard Smithsonian CfA 40 Polar Operational 40 Supercomputer Center 40 Deep Impact eXtended Investigation 40 AWIPS 40 Observatory NOAO 40 Panasas Storage Cluster 40 Amundsen Sea 40 NIEHS 40 Institution WHOI 40 GeoScience 40 Isabella Velicogna 40 NanoTech Institute 40 Advanced Computational 40 laser altimetry 40 CryoSat mission 40 MMT Observatory 40 Relations Observatory STEREO 40 Performance Computing 40 Holly Ridings 40 ESA ERS 40 Fraunhofer ILT 40 Carl Drews 40 Yellowstone Volcano Observatory 40 Appro Xtreme X 40 Anisotropy Probe 40 Cray XMT 40 Molecular Foundry 40 Ted Scambos 40 EPOXI 40 polarimetry 40 EERC 40 Cryospheric Sciences Branch 40 dynamical 40 Skidaway Institute 40 INBT 40 neuroinformatics 40 Lawrence Berkeley 40 El Nio 40 aerosol measurements 40 Historical Climatology Network 40 EnergyWindow 40 climatological 40 Atlantic Oceanographic 40 astrophysical 40 geoengineering schemes 40 La Niña 40 Ola Johannessen 40 Gregory Asner 40 AMPERE 40 Project Stormfury 40 NSF 40 journal Icarus 40 UAVSAR 40 SOHO spacecraft 40 Nasa Goddard Institute 40 Robin Canup 40 Christoph Boehme 40 NASAs 40 DHMRI 40 RIVA D. 40 ESA Cluster 40 HAZUS MH 39 Mars CRISM 39 TOP# List 39 CMU Robotics 39 MDA EarthSat Weather 39 CSIRO 39 Remote sensing 39 sunspot activity 39 satellite altimeters 39 microphysical 39 journal Climatic Change 39 GCEP 39 ASU Biodesign Institute 39 DOE NNSA 39 Manchester Jodrell Bank 39 SNfactory 39 FT IR spectroscopy 39 TACC 39 BN Goswami 39 BioServe 39 IBM Almaden Research 39 Earth magnetosphere 39 NASA 39 Risk TSR 39 Helmholtz Zentrum München 39 Anisotropy Probe WMAP 39 bathymetric 39 AzRISE 39 RT LAB 39 Envisat satellites 39 APHL 39 Earth Observation EO 39 thermoacoustic 39 streamgages 39 LS DYNA