Altimeter Near Real Time Wind and Wave Products: Random Error Estimation
- 1 July 2011
- journal article
- research article
- Published by Informa UK Limited in Marine Geodesy
- Vol. 34 (3-4), 393-406
- https://doi.org/10.1080/01490419.2011.585113
Abstract
Triple collocation technique is used to estimate the errors in near-real time altimeter wind and wave products of Jason-2, Envisat and Jason-1. Significant wave height (SWH) error is estimated by collocating altimeter products with buoys and model hindcasts over the period August 1, 2009 to July 31, 2010. It is estimated that Jason-2 absolute SWH error is about 0.13 m, or about 5.4% relative to the mean SWH value. The SWH errors of Envisat, Jason-1, buoys and the stand-alone model hindcast are about 6.2%, 7.8%, 8.6% and 9.7%, respectively. The wind speed error is estimated by collocating altimeter products with buoys and ECMWF model 1-day forecast over the same period. Jason-2 wind speed absolute error is about 1.0 m.s−1 (∼11.9% of the mean). For the collocation data sets used, it is found that wind speed errors of Envisat, Jason-1, the buoys and the model 1-day forecast are, respectively, 0.9 m.s−1, 1.0 m.s−1, 1.2 m.s−1 and 1.0 m.s−1.Keywords
This publication has 10 references indexed in Scilit:
- Jason-2 OGDR Wind and Wave Products: Monitoring, Validation and AssimilationMarine Geodesy, 2010
- Error Estimation of Buoy, Satellite, and Model Wave Height DataJournal of Atmospheric and Oceanic Technology, 2007
- The Interaction of Ocean Waves and WindPublished by Cambridge University Press (CUP) ,2004
- Validation of ocean wind and wave data using triple collocationJournal of Geophysical Research: Oceans, 2003
- A Two-Parameter Wind Speed Algorithm for Ku-Band AltimetersJournal of Atmospheric and Oceanic Technology, 2002
- Intercomparison of the Performance of Operational Ocean Wave Forecasting Systems with Buoy DataWeather and Forecasting, 2002
- The ERS Scatterometer Wind Measurement Accuracy: Evidence of Seasonal and Regional BiasesJournal of Atmospheric and Oceanic Technology, 2001
- A Proposal for a Neutral RegressionJournal of Atmospheric and Oceanic Technology, 1999
- On the joint estimation of model and satellite sea surface height anomaly errorsOcean Modelling, 1999
- Toward the true near‐surface wind speed: Error modeling and calibration using triple collocationJournal of Geophysical Research: Oceans, 1998