Acta Scientific Microbiology (ASMI) (ISSN: 2581-3226)

Research Article Volume 3 Issue 11

Coastal Wave Measurements by Exploitation of Jason-2 PISTACH in the Vicinity of Visakhapatnam Region on East Coast of India

Acharyulu PSN1*, Prasad KVSR1, Vignudelli Stefano2, Rashmi Sharma3 and Venkata Ramu Ch1

1Department of Meteorology and Oceanography, Andhra University, Visakhapatnam, Andhra Pradesh, India
2Consiglio Nazionale delle Ricerche, Istituto di Biofisica, Pisa, Italy
3Space Applications Centre, Atmospheric and Oceanic Sciences Group, Ahmedabad, Gujarat, India

*Corresponding Author:Acharyulu PSN, Department of Meteorology and Oceanography, Andhra University, Visakhapatnam, Andhra Pradesh, India.

Received: August 28, 2020; Published: October 2, 2020



  Satellite altimetry provides precise measurements of wind speed and significant wave height. They have been validated and widely used over open ocean, however, when they come closer to the coast, there is still a need to assess their accuracy and potential usage. This is especially true along Indian coasts, which experience quite opposite northeast and southwest monsoons and a calm period in between them. In this paper, Study on coastal wave heights using JASON-2 tracks in and around Visakhapatnam was carried out, on the east coast of India where the in situ measurements are available to us. Of the new additional three re-trackers available with the PISTACH coastal products, the results show that the RED3 re-tracker performs well with the coastal buoy. The coastal buoy as well as the altimeter capture all the oceanographic signals. The results from comparisons suggest that there is a significant improvement in the significant wave height (SWH) altimeter observations in terms of noise and accuracy after processing. In particular, it was observed that RED3 re-tracker shows better matching with the moderate wave height ranges and better results in proximity of the coast where as OCE3 re-tracker captures all the signals especially during severe weather conditions with less error and better results at intermediate and open waters. The wave height measurements obtained from Jason-2 PISTACH products in the coastal regions are substantially in good agreement with the coastal buoy measurement. There is a need to improve better detection of outliers, which were present even after processing. Also, there is a need to enhance or modify the collocation criteria for coastal regions otherwise the wave which was observed by the altimeter and the buoy will not be the same. These results shows that the Jason-2 PISTACH data able to extend the altimeter data up to ~10 km proximity to the coast and the potential use of RED3 re-tracker in the coastal zone and the use of both the re-trackers in understanding the wave climate in the coastal zone on the east coast of India especially where in-situ observations were scarce. This data will be useful to study the spatial variability and better understanding of coastal dynamics in these limited areas. The results were quite encouraging to use the altimetry data in the coastal regions on the east coast of India.


Keywords: Satellite Altimetry; Coastal Zone; Coastal Processes; Significant Wave Height; Seasons; Low Pressure Systems



  1. P Janssen. “ECMWF wave modeling and satellite altimeter wave data”. Elsevier 63 (2000).
  2. E Walsh. “Extraction of ocean wave height and dominant wavelength from Geos 3 altimeter data”. Journal of Geophysical Research: Solid Earth B8 (1979): 4003.
  3. H E Krogstad and S F Barstow. “Satellite wave measurements for coastal engineering applications”. Coastal Engineering 3 (1999): 283-307.
  4. P Queffeulou. “Quality of long term satellite wind and wave measurements”. In ERS-Envisat Symposium (2000).
  5. P Challenor., et al. “Satellite altimetry: A revolution in understanding the wave climate”. in Proceedings of the Symposium on 15 Years of Progress in Radar Altimetry (2006): 13-18.
  6. P G Challenor and P D Cotton. “The joint calibration of altimeter and in situ wave heights”. Adv. Appl. Mar. Climatol. Dyn. part WMO Guid. to Appl. Mar. Climatol. WMO/TD. 1081 (2002).
  7. PA E M Janssen., et al. “Error Estimation of Buoy, Satellite, and Model Wave Height Data”. Journal of Atmospheric and Oceanic Technology 9 (2007): 1665-1677.
  8. ED Kumar., et al. “Wind-Wave Characteristics and Climate Variability in the Indian Ocean Region Using Altimeter Data”. Marine Geodesy 3 (2013): 303-318.
  9. P Queffeulou. “Long-Term Validation of Wave Height Measurements from Altimeters”. Marine Geodesy 3-4 (2004): 495-510.
  10. B G Reguero., et al. “A Global Ocean Wave (GOW) calibrated reanalysis from 1948 onwards”. Coastal Engineering 65 (2012): 38-55.
  11. I R Young. “An intercomparison of GEOSAT, TOPEX and ERS1 measurements of wind speed and wave height”. Ocean Engineering 1 (1998): 67-81.
  12. P Cipollini., et al. “Coastal Altimetry Data Handbook” (2013).
  13. S Vignudelli., et al. “Improved satellite altimetry in coastal systems: Case study of the Corsica Channel (Mediterranean Sea)”. Geophysical Research Letter 7 (2005): 1-5.
  14. J Gómez-Enri., et al. “COASTALT: improving radar altimetry products in the oceanic coastal area”. in SPIE Remote Sensing (2008): 71050J-71050J.
  15. F Mercier., et al. “Coastal and Hydrology Altimetry product (PISTACH) handbook”. Cent. Natl. d’{É}tudes Spat. (CNES), Paris, Fr., (2010).
  16. M Passaro., et al. “ALES: A multi-mission adaptive subwaveform retracker for coastal and open ocean altimetry”. Remote Sensing of Environment 145 (2014): 173-189.
  17. G Valladeau., et al. “Using SARAL/AltiKa to Improve Ka-band Altimeter Measurements for Coastal Zones, Hydrology and Ice: The PEACHI Prototype”. Marine Geodesy (2015).
  18. P Cipollini., et al. “The role of altimetry in coastal observing systems”. Proceedings of Ocean 9 (2010): 181-191.
  19. A Sarkar., et al. “Inter-comparison of model-predicted wave heights with satellite altimeter measurements in the north Indian Ocean”. Ocean Engineering 9 (1997): 879-885.
  20. L Sabique., et al. “Comparison of Grid Averaged Altimeter and Buoy Significant Wave Heights in the Northern Indian Ocean”. Marine Geodesy 1 (2013): 72-85.
  21. P R Shanas., et al. “Comparison of gridded multi-mission and along-track mono-mission satellite altimetry wave heights with in situ near-shore buoy data”. Ocean Engineering 83 (2014): 24-35.
  22. F J Ocampo-Torres. “Significant wave height from ERS altimeter for water wave studies in coastal regions”. European Space Agency (ESA) (1997): 1239-1242.
  23. V R Rao., et al. “Near shore circulation and sediment transport pattern along Gangavaram - Visakhapatnam coast, east coast of India”. International Journal of Earth Sciences and Engineering 2014 (2014): 5-7.
  24. S Labroue., et al. “Level 3 PISTACH Products for Coastal Studies”. In 5th coastal altimetry workshop (2011): 1-23.
  25. F Monaldo. “Expected differences between buoy and radar altimeter estimates of wind speed and significant wave height and their implications on buoy-altimeter comparisons”. Journal of Geophysical Research 93 (1988): 2285.
  26. M Passaro., et al. “Validation of significant wave height from improved satellite altimetry in the German bight”. IEEE Transactions on Geoscience and Remote Sensing 4 (2015): 2146-2156.
  27. L Cavaleri. “The wind and wave atlas of the Mediterranean Sea - the calibration phase”. Advances in Geosciences 2 (2005): 255-257.
  28. M Cancet., et al. “Regional in situ validation of satellite altimeters: Calibration and cross-calibration results at the Corsican sites”. Advances in Space Research 8 (2013): 1400-1417.
  29. Y Cheng., et al. “Integrating Non-Tidal Sea Level data from altimetry and tide gauges for coastal sea level prediction”. Advances in Space Research 8 (2012): 1099-1106.
  30. Y Kushnir., et al. “The Recent Increase in North Atlantic Wave Heights*”. Jornal of Climate 8 (1997): 2107-2113.
  31. I Caballero., et al. “Advances in the validation of coastal altimetry full rate wave data (COASTALT PROJECT )”. In 5th Coastal Altimetry Workshop (2011).
  32. X Feng., et al. “Changes in significant and maximum wave heights in the Norwegian Sea”. Global and Planetary Change 113 (2014): 68-76.
  33. R H Stewart., et al. “Statistics of geostrophic turbulence in the southern ocean from satellite altimetry and numerical models”. Physica D: Nonlinear Phenomena 2-4 (1996): 599-613.
  34. F Durand., et al. “Estimating boundary currents from satellite altimetry: A case study for the east coast of India”. Journal of Oceanography 6 (2008): 831-845.
  35. R D Ray and B D Beckley. “Calibration of Ocean Wave Measurements by the TOPEX, Jason-1 , and Jason-2 Satellites”. Marine Geodesy 1 (2012): 238-257.
  36. L Roblou., et al. “X-track, a new processing tool for altimetry in coastal oceans”. IEEE Int. Geosci. Remote Sens. Symp., (2007).
  37. F Durand., et al. “Spatiotemporal structure of the East India Coastal Current from satellite altimetry”. Journal of Geophysical Research C2 (2009): C02013.
  38. M Cancet., et al. “CTOH regional altimetry products: examples of applications”. Proceedings of Ocean 1 (2009): 306.
  39. N Picot., et al. “{PODAAC} User Handbook”. {IGDR and GDR} Jason Products (2003).
  40. S Abdalla., et al. “Jason-2 OGDR Wind and Wave Products: Monitoring, Validation and Assimilation”. Marine Geodesy 1 (2010): 239-255.
  41. F G Lemoine., et al. “Towards development of a consistent orbit series for TOPEX, Jason-1, and Jason-2”. Advances in Space Research 12 (2010): 1513-1540.
  42. T Niedzielski and W Kosek. “Minimum time span of TOPEX/Poseidon, Jason-1 and Jason-2 global altimeter data to detect a significant trend and acceleration in sea level change”. Advances in Space Research 7 (2011): 1248-1255.
  43. J R E Lutjeharms., et al. “Agulhas cyclones. Deep-Sea Research Part II”. Topical Studies in Oceanography 1 (2003): 13-34.
  44. K Prasad., et al. “Application of Altimetry in assessing extreme winds and waves during cyclone period - a case study of LAILA cyclone”. In Pan Ocean Remote Sensing Conference (PORSEC) (2012).
  45. M Hemer., et al. “Waves and climate change on the Australian coast”. Journal of Coastal Research 50 (2007): 432-437.
  46. D Cromwell and C. Gommenginger. “Developing global long-term altimeter datasets and climatologies of ocean wave measurements” (2009): 14-17.
  47. B G Reguero., et al. “A Global Ocean Wave (GOW) calibrated reanalysis from 1948 onwards”. Coastal Engineering 65 (2012): 38-55.
  48. D B Chelton., et al. “Chapter 1 Satellite Altimetry”. In International Geophysics. F. Lee-Lueng and C. Anny, Eds. Academic Press (2001): 1-ii.
  49. P Challenor and P Cotton. “The joint calibration of altimeter and in situ wave heights”. Doc. WMO/TD-1081, JCOMM Tech. Rep (2002): 139-148.
  50. S D Attri and A Tyagi. “Government of India Ministry of Earth Sciences CLIMATE PROFILE OF INDIA Contribution to the Indian Network of Climate Change Assessment S D Attri and Ajit Tyagi”. New Delhi (2010).


Citation: Acharyulu PSN., et al. “Coastal Wave Measurements by Exploitation of Jason-2 PISTACH in the Vicinity of Visakhapatnam Region on East Coast of India". Acta Scientific Microbiology 3.11 (2020): 48-59.


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