CAWCR Wave Hindcast - Aggregated Collection
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Ocean wave hindcast, ongoing and updated monthly from 1979 to present. The 1979-2010 data was generated using the WaveWatch III v4.08 wave model forced with NCEP CFSR hourly winds and daily sea ice (see http://doi.org/10.4225/08/523168703DCC5). January 2011 - May 2013 was generated using the WaveWatch III v4.08 wave model forced with NCEP CFSv2 hourly winds and daily sea ice (see http://doi.org/10.4225/08/52817E2858340). June 2013 onward was generated using the WaveWatch III v4.18 wave model forced with NCEP CFSv2 hourly winds and daily sea ice. The dataset contains spectral wave output at 3683 points, as well as gridded outputs on a global 0.4 degree (24 arcminute) grid, with nested Australian and western Pacific subgrids of 10 and 4 arcminutes resolution. For further information, see Durrant, T., Greenslade, D., Hemer, M. and Trenham, C. 2014. A Global Wave Hindcast focussed on the Central and South Pacific CAWCR Technical Report No. 070. N.B. January 1979 is a "model spin-up" month and data from this month should not be used for research purposes. Spectral wave parameters output: time; station; longitude; latitude; frequency; frequency1; frequency2 (centre, upper and lower bands); direction; Efth (sea surface wave directional variance spectral density); depth; u10m; udir (wind speed and direction 10m above surface); curr; currdir (sea water speed and direction). Gridded parameters output: longitude; latitude; time; MAPSTA (status map) ; U10; V10 (Eastward and Northward wind); CI (sea ice area fraction) ; hs (significant wave height); wl (mean wave length) ; t02 (mean wave period Tm02); t (mean period Tm01); tm0m1(mean period Tm0-1); CgE (wave energy flux); fp (peak wave frequency); dir (mean wave direction); spr (directional spread); dp (peak direction); hs0; hs1; hs2; hs3 (significant wave height partitions); tp0; tp1; tp2; tp3 (peak period partitions); lp0; lp1; lp2; lp3 (mean wave length partitions); th0; th1; th2; th3 (mean wave direction partitions); si0; si1; si2; si3 (directional spread partitions); ws0; ws1; ws2; ws3 (wind sea fraction partitions); wsf (wind sea fraction); pnr (number of wave partitions); dtd (dynamic time step); uust; vust (eastward, northward friction velocities); cha (Charnock coefficient); faw (wind to wave energy flux); utaw; vtaw (eastward, northward wave supported wind stress); utwa; vtwa (eastward, northward wave to wind stress); wcc (whitecap coverage); Sxx; Syy; Sxy (radiation stress components); utwo; vtwo (eastward, northward wave to ocean stress); uuss; vuss (eastward, northward surface stokes drift). Please note that the licensee/user is required to acknowledge the source of this data on the following terms: 'Source: Bureau of Meteorology and CSIRO © 2013'. Apart from dealings under the Copyright Act 1968, the licensee shall not reproduce (electronically or otherwise), modify or supply (by sale or otherwise) this data without written permission. Please contact CSIRO CSIROEnquiries@csiro.au or BoM climatedata@bom.gov.au for more information.\nLineage: The hindcast was performed using the WAVEWATCH III(TM) model, 1970 - May 2013 used version 4.08, June 2013 onward used version 4.18. The model was run on a 0.4 x 0.4° global grid with a series of nested grids of 10 arcminutes (~18km) down to 4 arcminutes (~7km) in the Western Pacific and Australian regions. Wave spectra were discretised over 29 frequencies exponentially spaced from 0.038 Hz to 0.5 Hz and 24 directions with a constant 15° directional resolution. For 1979 - 2010 all grids were forced with Climate Forecast System Reanalysis (CFSR) surface winds at 0.3° spatial and hourly temporal resolution. For 2011 onward all grids were forced with Climate Forecast System Reanalysis v.2 (CFSv2) surface winds at 0.2° spatial and hourly temporal resolution. Hourly sea ice concentrations from the CFSR and CFSv2 data sets for the respective time periods were also used to define the ice edge. Data output in NetCDF4 format.\n\nCAWCR Wave Hindcast pre-June 2013 ERRATA\nIssued 21/09/2020.\nWave data pre-June 2013 was created with an early release of WAVEWATCHIII (v4.08).\nNote that pre-June 2013 variable 't' should not be used.\nPre-June 2013, Variable ‘t’, named mean wave period using the first spectral moment is a duplicate of variable ‘tm0m1’ mean wave period using the first inverse spectral moment.\nPost-June 2013 (inclusive), Variables ‘t01’ represent mean wave period using the first spectral moment, and ‘t0m1’ represents mean wave period using the first inverse spectral moment with no issues.\nSeveral other variable names changes took place during the upgrade.
本数据集为海洋波浪后报数据,自1979年起按月更新并持续维护至今。1979年至2010年的数据采用海浪模式WaveWatch III(WaveWatch III)v4.08生成,强迫场为美国国家环境预报中心气候预报系统再分析(NCEP CFSR)逐小时风场与每日海冰数据(详见http://doi.org/10.4225/08/523168703DCC5)。2011年1月至2013年5月的数据采用相同版本的WaveWatch III v4.08模式生成,强迫场替换为美国国家环境预报中心气候预报系统再分析第二版(NCEP CFSv2)逐小时风场与每日海冰数据。2013年6月起的数据则采用WaveWatch III v4.18模式生成,强迫场为NCEP CFSv2逐小时风场与每日海冰数据。
本数据集包含3683个站点的频谱波浪输出,以及全球0.4°(24角分)网格的网格化输出,同时嵌套有分辨率分别为10角分和4角分的澳大利亚及西太平洋子网格。更多信息详见:Durrant T, Greenslade D, Hemer M, Trenham C. 2014. 聚焦中南太平洋的全球海浪后报数据. 澳大利亚气候研究中心(CAWCR)技术报告第070号。
注意:1979年1月为模式自旋调整阶段,该月数据不得用于研究工作。
频谱波浪输出参数包括:时间(time)、站点编号(station)、经度(longitude)、纬度(latitude)、频率(frequency)、中心频段频率(frequency1)、上下频段频率(frequency2)、波向(direction)、Efth(海面波浪方向方差谱密度)、水深(depth)、10米高度风速(u10m)、10米高度风向(udir)、海流流速(curr)、海流流向(currdir)。
网格化输出参数包括:经度(longitude)、纬度(latitude)、时间(time)、MAPSTA(状态地图)、东向风分量(U10)、北向风分量(V10)、海冰面积占比(CI)、有效波高(hs)、平均波长(wl)、平均波周期Tm02(t02)、平均波周期Tm01(t)、平均波周期Tm0-1(tm0m1)、波浪能通量(CgE)、峰值波频率(fp)、平均波向(dir)、方向扩展度(spr)、峰值波向(dp)、有效波高分区(hs0、hs1、hs2、hs3)、峰值周期分区(tp0、tp1、tp2、tp3)、平均波长分区(lp0、lp1、lp2、lp3)、平均波向分区(th0、th1、th2、th3)、方向扩展度分区(si0、si1、si2、si3)、风浪份额分区(ws0、ws1、ws2、ws3)、风浪总份额(wsf)、波浪分区数(pnr)、动力时间步长(dtd)、东向摩擦流速(uust)、北向摩擦流速(vust)、查诺克系数(cha)、风能向波浪能转换通量(faw)、东向波浪支撑风应力(utaw)、北向波浪支撑风应力(vtaw)、东向波浪向风应力(utwa)、北向波浪向风应力(vtwa)、白浪覆盖率(wcc)、辐射应力分量(Sxx、Syy、Sxy)、东向波浪向海流应力(utwo)、北向波浪向海流应力(vtwo)、东向表面斯托克斯漂移(uuss)、北向表面斯托克斯漂移(vuss)。
数据使用要求:授权用户需按照以下条款标注数据来源:"来源:澳大利亚气象局(Bureau of Meteorology)与联邦科学与工业研究组织(CSIRO)© 2013"。除《1968年版权法》规定的使用情形外,未经书面许可,授权用户不得复制(电子或其他形式)、修改或通过售卖等方式提供本数据集。咨询详情可联系CSIRO(邮箱:CSIROEnquiries@csiro.au)或澳大利亚气象局(邮箱:climatedata@bom.gov.au)。
数据集溯源说明:本后报数据集采用WAVEWATCH III(TM)模式完成,1970年至2013年5月使用v4.08版本,2013年6月起使用v4.18版本。模式在0.4°×0.4°的全球网格上运行,并嵌套了分辨率为10角分(约18km)至4角分(约7km)的西太平洋及澳大利亚区域网格。波浪谱在0.038 Hz至0.5 Hz的29个指数分布频率以及24个方向(恒定15°方向分辨率)上离散化。1979年至2010年,所有网格的强迫场为空间分辨率0.3°、时间分辨率逐小时的气候预报系统再分析(CFSR)地表风场。2011年起,所有网格的强迫场为空间分辨率0.2°、时间分辨率逐小时的气候预报系统再分析第二版(CFSv2)地表风场。同时使用对应时段CFSR与CFSv2数据集的逐小时海冰浓度数据划定冰界。数据以NetCDF4格式输出。
CAWCR海浪后报数据(2013年6月前)勘误:
本勘误发布于2020年9月21日。2013年6月前的波浪数据采用早期版本的WAVEWATCH III(v4.08)生成。请注意:2013年6月前的变量"t"不得使用。2013年6月前,名为"t"的变量(基于第一谱矩的平均波周期)与变量"tm0m1"(基于第一逆谱矩的平均波周期)完全重复。2013年6月及之后的版本中,变量"t01"代表基于第一谱矩的平均波周期,"t0m1"代表基于第一逆谱矩的平均波周期,无上述问题。本次模式升级还变更了多个其他变量的名称。
搜集汇总
数据集介绍

背景与挑战
背景概述
CAWCR Wave Hindcast - Aggregated Collection是一个持续的海洋波浪后报数据集,从1979年至今每月更新,使用WaveWatch III模型结合NCEP风力和海冰数据生成。数据集提供全球0.4度网格的波浪输出,以及澳大利亚和西太平洋地区更高分辨率的子网格,包含丰富的波浪参数和网格参数输出。
以上内容由遇见数据集搜集并总结生成



