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Radar Altimetry Tutorial and Toolbox
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  • Data Access
    • Sea Level CCI
    • ODES: Online Data Extraction
    • Delayed Time Maps of SLA / GVA
    • Delayed Time Maps of ADT / AGV
    • NRT Maps of ADT / AGV
    • NRT Maps of SLA / GVA
    • SST and H, global
    • NRT maps of SWH and wind
    • Gulf of Mexico NRT Velocity Viewer
    • SSH Anomaly
    • Rain climatologies
    • Envisat IGDR
    • RADS ERS-2
    • RADS Geosat
    • Envisat SGDR
    • Envisat RA-2 wind/wave for Meteo
    • ERS RA Waveform
    • WVFDR POSEIDON Waveforms
  • Links
    • Documents
      • SLA and ADT NRT and Del. Time
      • Jason-1 SSHA Manual
      • TOPEX/POSEIDON SSHA Manual
      • RAIN-ALT products
      • ERS 1/2 Products - Manual
      • Waveform product user guide
      • EnviView User Guide
      • RA2-MWR Product Handbook
      • Guide to R&W Envisat products
      • Handbook for T/P.
    • Software
      • PublicReadBinaries
      • SSH Anomaly software
      • Ocean Product reading software
      • Modified Chelton-Wentz model
      • EnviView
      • Envisat L2 RA2-MWR R&W
      • POSEIDON waveforms conversor
    • Newsletter
  • Altimetry Tutorial
    • How altimetry works
      • Basic Principle
      • From radar pulse to range
      • Frequencies used & their impacts
      • High-precision altimetry
      • Delay-Doppler Altimetry
    • Data Flow
      • Data acquisition
      • Data processing
      • Data qualification
    • Future improvements
    • SAR Tutorial
      • On-board
      • Resolution cells
      • Ground processing steps
      • Product levels
    • Training Material
  • Use Cases
    • Geodesy & geophysics
    • Ocean applications
    • Ice sheets and sea ice
    • Climate
    • Atmosphere, wind & waves
    • Hydrology and land applications
    • Coastal applications
    • SAR applications
    • Examples of altimetry data use
  • Missions
    • Past missions
      • Skylab
      • GEOS 3
      • Seasat
      • Geosat
      • ERS-1
      • Topex/Poseidon
      • Geosat Follow-On
      • ERS-2
      • Envisat
      • Jason-1
    • Current missions
      • Jason-2
      • Cryosat-2
      • HaiYang-2
      • Saral
      • Jason-3
      • Sentinel-3
    • Future altimetry missions
      • Jason-CS / Sentinel-6
      • SWOT
  • Helpdesk
    • FAQ

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Radar Altimetry Tutorial and Toolbox > Sitemap

  • Login
  • 1. Toolbox
    • BRAT Data samples
  • 2. Code Access
  • 3. Data Access
    • 3.1 Delayed Time Maps of Sea Level Anomalies Upd and geostrophic velocity anomalies
    • 3.2 Delayed Time Maps of Absolute Dynamic Topography Upd and absolute geostrophic velocities
    • 3.3 Near-Real Time Maps of Absolute Dynamic Topography and absolute geostrophic velocities
    • 3.4 Near Real Time Maps of Sea Level Anomalies and geostrophic velocity anomalies
    • 3.5 Sea surface temperature and height, global 0.5 and 1.0 deg grids (JPL, WOCE v3)
    • 3.6 Near-real time maps of significant wave height and wind speed modulus
    • 3.7 Gulf of Mexico Near Real-Time Velocity Viewer
    • 3.8 Sea Surface Height Anomaly (NASA/PO.DAAC)
    • 3.9 Rain climatologies from dual frequency altimeters
    • 3.10 Envisat Interim Geophysical Data Record (IGDR)
    • 3.11 RADS ERS-2
    • 3.12 RADS Geosat
    • 3.13 Envisat Sensor Geophysical Data Record (SGDR)
    • 3.14 Envisat RA-2 wind/wave product for Meteo users (RA2_WWV_2P)
    • 3.15 ERS RA Waveform Product (ERS.ALT.WAP)
    • 3.16 WVFDR POSEIDON : Waveforms (extracted from SGDR)
    • 3.17 ERS-1/2 Ocean Products 2
  • 4. Webs / Documents
    • Newsletter #1
    • Newsletter #2
    • Newsletter #3
    • Newsletter #4
    • Newsletter #5
    • 4.1 (M)SLA and (M)ADT Near-Real Time and Delayed Time Products
    • 4.2 Jason-1 Sea Surface Height Anomaly product – User’s Reference Manual
    • 4.3 TOPEX/POSEIDON Sea Surface Height Anomaly product – User’s Reference Manual
    • 4.4 Level 3 rain products from dual frequency altimeters: RAIN-ALT products
    • 4.5 Altimeter & Microwave Radiometer ERS 1/2 Products – User Manual
    • 4.6 Altimeter waveform product ALT.WAP compact user guide
    • 4.7 EnviView User Guide
    • 4.8 RA2-MWR Product Handbook
    • 4.9 Guide to programs to read and write Envisat altimetry products
    • 4.10 User handbook for Merged TOPEX/POSEIDON products
    • 4.11 Broadview Radar Altimetry Toolbox
    • 4.12 PublicReadBinaries
    • 4.13 Sea Surface Height Anomaly software
    • 4.14 Ocean Product reading software
    • 4.15 Modified Chelton-Wentz model
    • 4.16 EnviView
    • 4.17 Envisat L2 RA2-MWR Products Read and Write Software
    • 4.18 Convert programs for waveforms POSEIDON products
    • Newsletter
  • 5. Radar Altimetry Tutorial
    • 5.1 How altimetry works
      • 5.1.1 Basic Principle
      • 5.1.2 From radar pulse to altimetry measurements
        • 5.1.2.1 On-board reception and tracking
        • 5.1.2.2 Full-Deramp Technique
        • 5.1.2.3 Altimetric measurements over the ocean
        • 5.1.2.4 Continental ice waveforms
        • 5.1.2.5 Altimetric measurements over land
        • 5.1.2.6 Envisat RA-2 individual echoes or Burst mode
        • 5.1.2.7 Footprint size
      • 5.1.3 Frequencies used & their impacts
      • 5.1.4 High-precision altimetry with satellites working together
      • 5.1.5 Delay-Doppler (or SAR) Altimetry
    • 5.2 Data Flow
      • 5.2.1 Data acquisition
      • 5.2.2 Data processing
        • 5.2.2.1 Altimeter measurements
          • 5.2.2.1.1 Altimetric range
          • 5.2.2.1.2 Significant Wave Height
          • 5.2.2.1.3 Backscatter Coefficient
          • 5.2.2.1.4 Wind Speed
        • 5.2.2.2 Orbit Determination
        • 5.2.2.3 Geophysical corrections
          • 5.2.2.3.1 Ocean tides
          • 5.2.2.3.2 Pole tides
          • 5.2.2.3.3 Ionosphere corrections
          • 5.2.2.3.4 Wet troposphere correction
          • 5.2.2.3.5 Dry troposphere correction
          • 5.2.2.3.6. Inverse barometer
          • 5.2.2.3.7. Electromagnetic bias
        • 5.2.2.4 Instrumental errors
        • 5.2.2.5 Reference surfaces
          • 5.2.2.5.1. Reference ellipsoid
          • 5.2.2.5.2. Geoid
          • 5.2.2.5.3. Mean Sea surface
          • 5.2.2.5.4. Mean dynamic topography
          • 5.2.2.5.5. Bathymetry
        • 5.2.2.6 Flags
        • 5.2.2.7 Retracking
        • 5.2.2.8 High-Level processing
      • 5.2.3 Data qualification: “CalVal”
    • 5.3 Future technology improvements
      • 5.3.1 Ka-band altimeter
      • 5.3.2 Interferometers
      • 5.3.3 Constellations
      • 5.3.4 GNSS altimetry
    • 5.4. SAR Tutorial
      • 5.4.1.1 Transmission pattern
      • 5.4.1 On-board
      • 5.4.1.2 Mode mask
      • 5.4.4 Product levels
      • 5.4.2 Resolution cells
      • 5.4.3 Ground processing steps
    • 5.5 Training Material
  • 6. Thematic Use Cases
    • 6.1 Geodesy & geophysics
      • 6.1.1 Bathymetry estimate from altimetry
      • 6.1.2 Geodesy
      • 6.1.3 Other geophysical applications
      • 6.1.4 Tsunamis
    • 6.2 Ocean applications
      • 6.2.1 Large-scale ocean circulation
      • 6.2.2 Ocean currents and eddies: mesoscale ocean applications
      • 6.2.3 Operational oceanography
      • 6.2.4 Tides
      • 6.2.5 Mean Sea Level
      • 6.2.6 Open Ocean – SAR
    • 6.3 Ice: Land and Sea ice
      • 6.3.1 Land Ice
      • 6.3.2 Sea ice
    • 6.4 Climate
      • 6.4.1 El Niño – Southern Oscillation (ENSO)
      • 6.4.2 North Atlantic Oscillation (NAO)
      • 6.4.3 Decadal oscillations
      • 6.4.4 Seasons
      • 6.4.5 Sea Level CCI
    • 6.5 Atmosphere, wind & waves
      • 6.5.1 Wind & waves as seen by altimetry
      • 6.5.2 Cyclones, hurricanes and typhoons
      • 6.5.3 Rain
    • 6.6 Hydrology and land applications
      • 6.6.1 Lake level monitoring
      • 6.6.2 Land applications
      • 6.6.3 River monitoring
      • 6.6.4 Inland Water – SAR
    • 6.7 Coastal applications
      • 6.7.1 Coastal Ocean – SAR & SARIn
    • 6.8 SAR applications
    • 6.9 Examples of altimetry data use
      • 6.9.1 Western boundary currents: The Gulf Stream and its seasonal variations
      • 6.9.2 Ocean eddies as seen by satellite altimetry: the Kuroshio current
      • 6.9.3 Geostrophic velocities: The Antarctic Circumpolar Current, due East around the Earth
      • 6.9.4 The North Western Mediterranean Sea by using coastal dedicated products
      • 6.9.5 The Agulhas current by using coastal dedicated products
      • 6.9.6 The Florida Keys currents by using coastal dedicated products
      • 6.9.7 Ice applications: Combined altimetry and radiometry for sea ice classification
      • 6.9.8 Ice caps applications: Altimetry for observing polar ice caps
      • 6.9.9 Ice applications: Cryosat over continental ice
      • 6.9.10 Ice applications: Cryosat over sea ice
      • 6.9.11 Monitoring El Niño: Rossby and Kelvin waves
      • 6.8.12 Mean sea level
      • 6.8.13 Seasonal distribution of Significant Wave Height
      • 6.9.14 Observing wind and waves: hurricane Katrina
      • 6.9.15 Temporal water surface height variations in enclosed areas: the Amazon Basin
      • 6.9.16 Monitoring Aral Sea level
      • 6.8.17 Land applications: Monitoring continental surfaces
      • 6.9.18 Altimetric waveforms to monitor lakes level: Lake Issyk-kul
      • 6.9.19 Altimetry for lake/reservoir studies by using hydrology dedicated products.
      • 6.9.20 Altimetry for wetland studies by using hydrology dedicated products.
      • 6.9.21 Use of the GOCE toolbox (GUT) in oceanography along with altimetry
  • 7. Missions
    • 7.1 Past missions
      • 7.1.1 Skylab
      • 7.1.2 GEOS 3
      • 7.1.3 Seasat
      • 7.1.4 Geosat
      • 7.1.5 ERS-1
        • 7.1.5.1 ERS-1 Instruments
          • 7.1.5.1.1 Radar Altimeter
          • 7.1.5.1.2 MWS: Microwave Sounder
          • 7.1.5.1.3 PRARE
          • 7.1.5.1.4 Laser RetroReflector
        • 7.1.5.2 ERS-1 orbits
      • 7.1.6 Topex/Poseidon
        • 7.1.6.1 T/P Instruments
          • 7.1.6.1.1 Topex altimeter, or NRA
          • 7.1.6.1.2 Poseidon-1
          • 7.1.6.1.3 TMR : Topex Microwave Radiometer
          • 7.1.6.1.4 DORIS
          • 7.1.6.1.5 GPSDR GPS tracking receiver
          • 7.1.6.1.6 LRA: Laser Retroreflector Array
        • 7.1.6.2 T/P orbit
        • 7.1.6.3 T/P objectives
      • 7.1.7 Geosat Follow-On
      • 7.1.8 ERS-2
        • 7.1.8.1 ERS-2 Instruments
          • 7.1.8.1.1 RA
          • 7.1.8.1.2 MWS: Microwave Sounder
          • 7.1.8.1.3 PRARE
          • 7.1.8.1.4 Laser RetroReflector
        • 7.1.8.2 ERS-2 orbit
      • 7.1.9 EnviSat
        • 7.1.9.1 Envisat instruments
          • 7.1.9.1.1 RA-2
          • 7.1.9.1.2 MWR: Microwave Radiometer
          • 7.1.9.1.3 DORIS
          • 7.1.9.1.4 Laser RetroReflector
        • 7.1.9.2 Envisat orbit
        • 7.1.9.3 Envisat objectives
        • 7.1.9.4 Envisat Ground segment
      • 7.1.10 Jason-1
        • 7.1.10.1 Jason-1 Instruments
          • 7.1.10.1.1 Poseidon-2
          • 7.1.10.1.2 JMR : Jason-1 Microwave Radiometer
          • 7.1.10.1.3 DORIS
          • 7.1.10.1.4 TRSR GPS tracking receiver
          • 7.1.10.1.5 LRA: Laser Retroreflector Array
        • 7.1.10.2 Jason-1 orbit
        • 7.1.10.3 Jason-1 Mission objectives
        • 7.1.10.4 Ground segment
    • 7.2 Current missions
      • 7.2.1 Jason-2
        • 7.2.1.1 Jason-2 Instruments
          • 7.2.1.1.1 Poseidon-3
          • 7.2.1.1.2 AMR
          • 7.2.1.1.3 DORIS
          • 7.2.1.1.4 GPSP
          • 7.2.1.1.5 LRA
        • 7.2.1.2 Jason-2 Orbit
        • 7.2.1.3 Jason-2 Objectives
        • 7.2.1.4 Jason-2 Ground Segment
      • 7.2.2 CryoSat-2
        • 7.2.2.1 Cryosat-2 Instruments
          • 7.2.2.1.1 SIRAL
          • 7.2.2.1.2 DORIS
          • 7.2.2.1.3 LRR
        • 7.2.2.2 Cryosat-2 Orbit
        • 7.2.2.3 Cryosat-2 Objectives
        • 7.2.2.4 CryoSat-2 Ground segment
      • 7.2.3 HaiYang-2
        • 7.2.3.1 HaiYang-2 Instruments
        • 7.2.3.2 HaiYang-2 Orbit
        • 7.2.3.3 HaiYang-2 Applications
        • 7.2.3.4 HaiYang-2 Ground segment
      • 7.2.4 SARAL
        • 7.2.4.1 SARAL Instruments
        • 7.2.4.2 SARAL Orbit
        • 7.2.4.3 SARAL Objectives
        • 7.2.4.4 SARAL Ground segment
      • 7.2.5 Jason-3
        • 7.2.5.1 Jason-3 Instruments
        • 7.2.5.2 Jason-3 Orbit
        • 7.2.5.3 Jason-3 Objectives
        • 7.2.5.4 Jason-3 Ground segment
      • 7.2.6 Sentinel-3
        • 7.2.6.1 Sentinel-3 instruments
          • 7.2.6.1.1 SRAL
        • 7.2.6.2 Sentinel-3 Orbit
        • 7.2.6.3 Sentinel-3 Objectives
    • 7.3 Future altimetry missions
      • 7.3.1 Jason-CS / Sentinel-6
      • 7.3.2 SWOT
  • 8. HelpDesk
    • 8.1 FAQ
  • Glossary
  • Acknowledgements & Contributors
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