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The Altimeters have been more and more used in ocean forecast. They have been used not only in ocean forecast validation but also be assimilated in ocean forecast model. Since August 2011, the HY-2 satellite has been launched successfully, and now it has been used in ocean wave model. This paper is armed to use the Jason-2 altimeter significant wave height (SWH) data to validate the accuracy of wave...
Since August 2011, the HY-2 satellite has been launched successfully, and it has provided almost continuous wave height measurements for more than 4 years. Before using these data, the measurements need to be validated. Based on the in-situ buoys from the National Data Buoy Center (NDBC) and Jason-2 altimeter, the HY-2 Ku-band significant wave height (SWH) measurements were validated and have been...
This paper presents the error characteristics of MSISE-90, and data analysis is performed using statistical comparison. In this experiment, the absolute error, root mean square error and standard deviation of temperature and pressure for each month, latitude and geometric height are calculated, and the curve of annual global error characteristics is obtained at the same time. The result shows that...
Short term rainfall climatology studies are essential for disaster management and planning in hilly areas. Uttarakhand State, India is prone to cloud burst and flooding events like one occurred at Kedarnath region in June 2013. Rain gauge stations are scarce and rainfall monitoring is difficult over this region due to rough terrain and extreme environmental conditions. Therefore, the available rainfall...
The HY-2 satellite was successfully launched on 16 August 2011. The HY-2 significant wave height (SWH) is validated by the data from the South China Sea (SCS) field experiment, National Data Buoy Center (NDBC) buoys and Jason-1/2 altimeters, and is corrected using a linear regression with in-situ measurements. Compared with NDBC SWH, the HY-2 SWH show a RMS of 0.36 m, which is similar to Jason-1 and...
An error index to support the validation stage of dynamic models is proposed in this paper. The result of the index quantifies the percentage of the relative difference between an experimental signal and an estimated signal. The index is calculated for several test signals, which are selected and designed to exhibit controlled differences in contrast with a reference signal. Also, other seven indexes...
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