Sitemap

• Login
• Submissions
• 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: ice sheets and sea ice
    • 6.3.1 Ice sheets
    • 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
    • 7.2.4 Saral
      • 7.2.4.1 AltiKa Instrument
    • 7.2.5 Jason-3
    • 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