Quick Guide Jason Significant Wave Height

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Quick Guide Jason Significant Wave Height

Jason Significant Wave Height Quick Guide Why are Jason Wave Heights important Wave Height information is critical for shipping concerns over the ocean where observations are scarce. Jason Wave Heights are altimetric: the satellite detects its own height above the sea surface, to an accuracy of better than 3-1/2 cm. Jason satellites monitor the height of the ocean at high precision, to document ocean elevation changes over long periods of time. Wave actions are a by-product of this accuracy. JASON-3 is one of a suite of ocean altimetry satellites (JASON-2, Saral/ AltiKA, Cryosat-2, Sentinel-3a and -3b). Only JASON is in AWIPS however. JASON wave heights over the western Pacific, 1630 UTC 04 December 2018, Specifications along with AHI Band 13 (10.41 µm) Brightness Temperatures Coverage over oceans and Great Lakes Spatial resolution depends on sea state, but generally about 5 km (cross-track) and 11 km (along-track) You should ignore points over land or within 15-20 km of land Estimated accuracy to within 0.5 m or 10%, whichever is larger Does not require clear field of view Coverage Equatorward of 66o, Repeat Cycle of 9.9 days after 254 orbits Impact on Operations Primary Application: JASON wave heights are an important Resources ground truth in wave estimates in regions where ship and NOAA OSPO buoy information is scarce. Jason-3 Product : Joint Altimetry Satellite Oceanography Jason acronym Handbook Network. Jason lead the argonauts seeking the golden fleece. Characterization: Wave height is derived from the shape NOAA OSPO and intensity of the altimeter radar echo, a ~2-5 km footprint Jason-2 Product (depending on sea state), to within 10% or 0.5 meters, Handbook whichever is greater. COMET Training Online: Jason data at OSPO. Significant Wave Height from NOAA STAR. Hyperlinks will not work in AWIPS, but they do in VLab Contributor: Scott Lindstrom, University of Wisconsin-Madison.

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Estimation of Significant Wave Height Using Satellite Data
Research Journal of Applied Sciences, Engineering and Technology 4(24): 5332-5338, 2012 ISSN: 2040-7467 © Maxwell Scientific Organization, 2012 Submitted: March 18, 2012 Accepted: April 23, 2012 Published: December 15, 2012 Estimation of Significant Wave Height Using Satellite Data R.D. Sathiya and V. Vaithiyanathan School of Computing, SASTRA University, Thirumalaisamudram, India Abstract: Among the different ocean physical parameters applied in the hydrographic studies, sufficient work has not been noticed in the existing research. So it is planned to evaluate the wave height from the satellite sensors (OceanSAT 1, 2 data) without the influence of tide. The model was developed with the comparison of the actual data of maximum height of water level which we have collected for 24 h in beach. The same correlated with the derived data from the earlier satellite imagery. To get the result of the significant wave height, beach profile was alone taking into account the height of the ocean swell, the wave height was deduced from the tide chart. For defining the relationship between the wave height and the tides a large amount of good quality of data for a significant period is required. Radar scatterometers are also able to provide sea surface wind speed and the direction of accuracy. Aim of this study is to give the relationship between the height, tides and speed of the wind, such relationship can be useful in preparing a wave table, which will be of immense value for mariners. Therefore, the relationship between significant wave height and the radar backscattering cross section has been evaluated with back propagation neural network algorithm.
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Modeling the Tide-Induced Modulation of Wave Height in the Outer Seine Estuary Nicolas Guillou, Georges Chapalain To cite this version: Nicolas Guillou, Georges Chapalain. Modeling the Tide-Induced Modulation of Wave Height in the Outer Seine Estuary. Journal of Coastal Research, Coastal Education and Research Foundation, 2012, 28 (3), pp.613-623. 10.2112/JCOASTRES-D-11-00075.1. hal-01711787 HAL Id: hal-01711787 https://hal.archives-ouvertes.fr/hal-01711787 Submitted on 3 Apr 2019 HAL is a multi-disciplinary open access L’archive ouverte pluridisciplinaire HAL, est archive for the deposit and dissemination of sci- destinée au dépôt et à la diffusion de documents entific research documents, whether they are pub- scientifiques de niveau recherche, publiés ou non, lished or not. The documents may come from émanant des établissements d’enseignement et de teaching and research institutions in France or recherche français ou étrangers, des laboratoires abroad, or from public or private research centers. publics ou privés. Modeling the Tide-Induced Modulation of Wave Height in the Outer Seine Estuary Nicolas Guillou* and Georges Chapalain Centre d'Etudes Techniques Maritimes Et Fluviales (CETMEF) Laboratoire de Génie Côtier et Environnement (LGCE) 155 rue Pierre Bouguer Technopôle Brest Iroise – BP 5 – 29280 Plouzané, France Tél.: +33 (0)2 98 05 67 39 Fax: 02 98 05 67 21 E-mails: [email protected] [email protected] * corresponding author ABSTRACT During the last decades, numerous models have been implemented to investigate the effects of tide on wind-generated surface-gravity waves. The present study analyzes the influences of the tide- induced time-varying water depths and currents on the wave height in the outer Seine estuary (France, English Channel).
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CHAPTER 18 Experiments on Design Wave Height in Shallow Water J
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