2000-2015: Monthly Means of Daily Means Wind Speed TIFFs for the Lake Victoria Region

2000-2015: Monthly Means of Daily Means Wind Speed TIFFs for the Lake Victoria Region Reference System: SR-ORG:14 Developed for: NSF Award Number: 1518532 CNH-L: The Potential for Aquaculture in Lake Victoria and Implications for Wild Fisheries and Fish Commodity Markets File Naming Convention: All TIFFs are named under the following naming convention: YYYY_MMWS, where YYYY refers to year of the data, MM refers to the month, and WS refers to Wind Speed. This wind speed data set was developed for the purposes of National Science Foundation (NSF) Coupled Natural and Human systems research. Data Origin: Original dataset was downloaded from: http://apps.ecmwf.int/datasets/data/interim-full-moda/levtype=sfc/ Original data downloaded was ERA Interim, Monthly Means of Daily Means, and was developed by the European Centre for Medium-Range Weather Forecasts (ECMWF). Data was downloaded as single component 10 meter Wind Speed data packaged as NetCDF. Data values are measured in m/s-1. Data values are monthly means of daily means. Data is representative of surface level collection. Origin data was derived and developed from reanalysis. ECMWF, the data provider and developer, defines their methods of reanalysis as follows: “Reanalysis (as well as analysis) is a process by which model information and observations of many different sorts are combined in an optimal way to produce a consistent, global best estimate of the various atmospheric, wave and oceanographic parameters.” http://www.ecmwf.int/en/how-are-data-obtained-do-they-come-observations-or-have-they-been-derived-numerical-models Extent downloaded: (degrees) N: 2 W: 27 S: -5 E: 36 Resolution downloaded: (degrees) 0.125 x 0.125 (approx. 14km at the equator). Data Development/Processing: These data were downloaded individually as monthly 10 meter Wind Speed in NetCDF format then converted to TIFF using the following GDAL script. for %A in ("C:\temp\*.nc") do gdal_translate -of GTiff -ot FLOAT32 -a_srs "+init=epsg:4326" -unscale -co "COMPRESS=PACKBITS" "%A" "%A.tif Converted TIFF data was validated against the parent NetCDF file for correct cell size and pixel value. To use this data, cite: http://onlinelibrary.wiley.com/doi/10.1002/qj.828/abstract

2000-2015年：维多利亚湖区域日平均风速月均TIFF数据集
参考坐标系：SR-ORG:14
本数据集为美国国家科学基金会（National Science Foundation, NSF）资助项目（资助编号1518532）所开发，项目名称为CNH-L：《维多利亚湖水产养殖潜力及其对野生渔业与鱼类商品市场的影响》
文件命名规范：所有TIFF文件均遵循以下命名规则：YYYY_MMWS，其中YYYY代表数据采集年份，MM代表月份，WS代表风速（Wind Speed）
本风速数据集专为美国国家科学基金会耦合自然与人类系统（Coupled Natural and Human Systems）研究开发。
数据来源：原始数据集下载自http://apps.ecmwf.int/datasets/data/interim-full-moda/levtype=sfc/，原始数据为欧洲中期天气预报中心（European Centre for Medium-Range Weather Forecasts, ECMWF）发布的ERA Interim日平均风速月均数据。原始下载数据为以NetCDF格式封装的10米单分量风速数据，数据单位为m·s⁻¹，其数值为日平均风速的月平均值，代表地表层级采集数据。原始数据源自再分析数据集。
数据提供商与开发者欧洲中期天气预报中心（ECMWF）对其再分析方法的定义如下：“再分析（与分析过程一致）是将各类模型信息与多类观测数据以最优方式融合，从而为各类大气、海浪与海洋学参数生成一致且全局最优估计值的过程。” 详细说明参见：http://www.ecmwf.int/en/how-are-data-obtained-do-they-come-observations-or-have-they-been-derived-numerical-models
下载范围（经纬度）：北纬2°、西经27°、南纬-5°、东经36°
下载分辨率：0.125°×0.125°（赤道区域分辨率约为14公里）
数据处理流程：本批数据以NetCDF格式按月单独下载10米风速数据，随后通过以下GDAL脚本转换为TIFF格式：
for %A in ("C: emp*.nc") do gdal_translate -of GTiff -ot FLOAT32 -a_srs "+init=epsg:4326" -unscale -co "COMPRESS=PACKBITS" "%A" "%A.tif"
转换得到的TIFF数据已与原始NetCDF文件进行校验，以确保像元尺寸与像素值准确无误。
使用本数据集的引用链接：http://onlinelibrary.wiley.com/doi/10.1002/qj.828/abstract