METOP-B ASCAT daily products

The Advanced SCATterometer (ASCAT) ocean surface winds are a 10 meter neutral stability wind. These products are processed by NOAA/National Environmental Satellite, Data, and Information Service (NESDIS) utilizing measurements from ASCAT aboard the European Organisation for the Exploitation of Meteorological Satellites (EUMETSAT) METOP satellite. The current geophysical model function (GMF) being used is CMOD5.5, where the GMF relates the normalized radar cross-section to the ocean surface wind speed and direction. All dates and times are Coordinated Universal Time (UTC), also known as Greenwich Mean Time (GMT), Zulu Time (UT), and World Time.
cdm_data_type=Grid
contact=[e-mail]
Conventions=CF-1.6, COARDS, ACDD-1.3
Easternmost_Easting=179.875
geospatial_lat_max=89.875
geospatial_lat_min=-89.875
geospatial_lat_resolution=0.25
geospatial_lat_units=degrees_north
geospatial_lon_max=179.875
geospatial_lon_min=-179.875
geospatial_lon_resolution=0.25
geospatial_lon_units=degrees_east
history_of_appended_files=Wed Nov 13 20:22:11 2024: Appended file timed.grd had following "history" attribute:
Wed Nov 13 20:22:11 2024: ncrename -v z,Time_Descending timed.grd
Wed Nov 13 20:22:11 2024: ncatted -a ioos_category,z,c,c,Time timed.grd
Wed Nov 13 20:22:11 2024: ncatted -a standard_name,z,c,c,not defined timed.grd
Wed Nov 13 20:22:11 2024: ncatted -a variable_info,z,c,c,Hour of the Day, Descending Passes timed.grd
Wed Nov 13 20:22:11 2024: ncatted -a coordsys,z,c,c,geographic timed.grd
Wed Nov 13 20:22:11 2024: ncatted -a units,z,c,c,hour timed.grd
Wed Nov 13 20:22:11 2024: ncatted -a long_name,z,m,c,Decimal Hour of the Day, Descending Passes timed.grd
xyz2grd -As -Rd -I0.25 -r -: timed.txt -Gtimed.grd
Wed Nov 13 20:22:11 2024: Appended file rainfd.grd had following "history" attribute:
Wed Nov 13 20:22:11 2024: ncrename -v z,Rain_Flag_Descending rainfd.grd
Wed Nov 13 20:22:11 2024: ncatted -a comment,z,c,c,0=no rain, 1=rain rainfd.grd
Wed Nov 13 20:22:11 2024: ncatted -a ioos_category,z,c,c,Quality rainfd.grd
Wed Nov 13 20:22:11 2024: ncatted -a variable_info,z,c,c,Rain Flag, Descending Passes rainfd.grd
Wed Nov 13 20:22:11 2024: ncatted -a coordsys,z,c,c,geographic rainfd.grd
Wed Nov 13 20:22:11 2024: ncatted -a long_name,z,m,c,Rain Flag, Descending Passes rainfd.grd
xyz2grd -As -Rd -I0.25 -r -: rainfd.txt -Grainfd.grd
Wed Nov 13 20:22:11 2024: Appended file wspdd.grd had following "history" attribute:
Wed Nov 13 20:22:11 2024: ncrename -v z,WSPD_Descending wspdd.grd
Wed Nov 13 20:22:11 2024: ncatted -a standard_name,z,c,c,wind_speed wspdd.grd
Wed Nov 13 20:22:11 2024: ncatted -a ioos_category,z,c,c,Wind wspdd.grd
Wed Nov 13 20:22:11 2024: ncatted -a variable_info,z,c,c,10-meter Surface Wind Speed, Descending Passes wspdd.grd
Wed Nov 13 20:22:11 2024: ncatted -a coordsys,z,c,c,geographic wspdd.grd
Wed Nov 13 20:22:11 2024: ncatted -a units,z,c,c,m s-1 wspdd.grd
Wed Nov 13 20:22:11 2024: ncatted -a long_name,z,m,c,Surface Wind Speed, Descending Passes wspdd.grd
xyz2grd -As -Rd -I0.25 -r -: wspdd.txt -Gwspdd.grd
Wed Nov 13 20:22:11 2024: Appended file vwndd.grd had following "history" attribute:
Wed Nov 13 20:22:11 2024: ncrename -v z,vwnd_Descending vwndd.grd
Wed Nov 13 20:22:11 2024: ncatted -a standard_name,z,c,c,northward_wind vwndd.grd
Wed Nov 13 20:22:11 2024: ncatted -a ioos_category,z,c,c,Wind vwndd.grd
Wed Nov 13 20:22:11 2024: ncatted -a variable_info,z,c,c,10-meter Meridional Wind, Descending Passes vwndd.grd
Wed Nov 13 20:22:11 2024: ncatted -a coordsys,z,c,c,geographic vwndd.grd
Wed Nov 13 20:22:11 2024: ncatted -a units,z,c,c,m s-1 vwndd.grd
Wed Nov 13 20:22:11 2024: ncatted -a long_name,z,m,c,Meridional Wind vwndd.grd
xyz2grd -As -Rd -I0.25 -r -: vwndd.txt -Gvwndd.grd
Wed Nov 13 20:22:11 2024: Appended file uwndd.grd had following "history" attribute:
Wed Nov 13 20:22:11 2024: ncrename -v z,uwnd_Descending uwndd.grd
Wed Nov 13 20:22:11 2024: ncatted -a standard_name,z,c,c,eastward_wind uwndd.grd
Wed Nov 13 20:22:11 2024: ncatted -a ioos_category,z,c,c,Wind uwndd.grd
Wed Nov 13 20:22:11 2024: ncatted -a variable_info,z,c,c,10-meter Zonal Wind, Descending Passes uwndd.grd
Wed Nov 13 20:22:10 2024: ncatted -a coordsys,z,c,c,geographic uwndd.grd
Wed Nov 13 20:22:10 2024: ncatted -a units,z,c,c,m s-1 uwndd.grd
Wed Nov 13 20:22:10 2024: ncatted -a long_name,z,m,c,Zonal Wind uwndd.grd
xyz2grd -As -Rd -I0.25 -r -: uwndd.txt -Guwndd.grd
Wed Nov 13 20:22:10 2024: Appended file timea.grd had following "history" attribute:
Wed Nov 13 20:22:10 2024: ncrename -v z,Time_Ascending timea.grd
Wed Nov 13 20:22:10 2024: ncatted -a ioos_category,z,c,c,Time timea.grd
Wed Nov 13 20:22:10 2024: ncatted -a standard_name,z,c,c,not defined timea.grd
Wed Nov 13 20:22:10 2024: ncatted -a variable_info,z,c,c,Hour of the Day, Ascending Passes timea.grd
Wed Nov 13 20:22:10 2024: ncatted -a coordsys,z,c,c,geographic timea.grd
Wed Nov 13 20:22:10 2024: ncatted -a units,z,c,c,hour timea.grd
Wed Nov 13 20:22:10 2024: ncatted -a long_name,z,m,c,Decimal Hour of the Day, Ascending Passes timea.grd
xyz2grd -As -Rd -I0.25 -r -: timea.txt -Gtimea.grd
Wed Nov 13 20:22:10 2024: Appended file rainfa.grd had following "history" attribute:
Wed Nov 13 20:22:10 2024: ncrename -v z,Rain_Flag_Ascending rainfa.grd
Wed Nov 13 20:22:10 2024: ncatted -a comment,z,c,c,0=no rain, 1=rain rainfa.grd
Wed Nov 13 20:22:10 2024: ncatted -a ioos_category,z,c,c,Quality rainfa.grd
Wed Nov 13 20:22:10 2024: ncatted -a variable_info,z,c,c,Rain Flag, Ascending Passes rainfa.grd
Wed Nov 13 20:22:10 2024: ncatted -a coordsys,z,c,c,geographic rainfa.grd
Wed Nov 13 20:22:10 2024: ncatted -a long_name,z,m,c,Rain Flag, Ascending Passes rainfa.grd
xyz2grd -As -Rd -I0.25 -r -: rainfa.txt -Grainfa.grd
Wed Nov 13 20:22:10 2024: Appended file wspda.grd had following "history" attribute:
Wed Nov 13 20:22:10 2024: ncrename -v z,WSPD_Ascending wspda.grd
Wed Nov 13 20:22:10 2024: ncatted -a standard_name,z,c,c,wind_speed wspda.grd
Wed Nov 13 20:22:10 2024: ncatted -a ioos_category,z,c,c,Wind wspda.grd
Wed Nov 13 20:22:10 2024: ncatted -a variable_info,z,c,c,10-meter Surface Wind Speed, Ascending Passes wspda.grd
Wed Nov 13 20:22:10 2024: ncatted -a coordsys,z,c,c,geographic wspda.grd
Wed Nov 13 20:22:10 2024: ncatted -a units,z,c,c,m s-1 wspda.grd
Wed Nov 13 20:22:10 2024: ncatted -a long_name,z,m,c,Surface Wind Speed, Ascending Passes wspda.grd
xyz2grd -As -Rd -I0.25 -r -: wspda.txt -Gwspda.grd
Wed Nov 13 20:22:10 2024: Appended file vwnda.grd had following "history" attribute:
Wed Nov 13 20:22:10 2024: ncrename -v z,vwnd_Ascending vwnda.grd
Wed Nov 13 20:22:10 2024: ncatted -a standard_name,z,c,c,northward_wind vwnda.grd
Wed Nov 13 20:22:10 2024: ncatted -a ioos_category,z,c,c,Wind vwnda.grd
Wed Nov 13 20:22:10 2024: ncatted -a variable_info,z,c,c,10-meter Meridional Wind, Ascending Passes vwnda.grd
Wed Nov 13 20:22:10 2024: ncatted -a coordsys,z,c,c,geographic vwnda.grd
Wed Nov 13 20:22:10 2024: ncatted -a units,z,c,c,m s-1 vwnda.grd
Wed Nov 13 20:22:10 2024: ncatted -a long_name,z,m,c,Meridional Wind vwnda.grd
xyz2grd -As -Rd -I0.25 -r -: vwnda.txt -Gvwnda.grd
infoUrl=https://cwcgom.aoml.noaa.gov/thredds/dodsC/ASCAT/METOPB.nc.html
institution=NOAA
keywords_vocabulary=GCMD Science Keywords
nco_openmp_thread_number=1
Northernmost_Northing=89.875
source_data=NOAA/NESDIS
sourceUrl=https://cwcgom.aoml.noaa.gov/thredds/dodsC/ASCAT/METOPB.nc
Southernmost_Northing=-89.875
spatial_resolution=0.25 degrees
standard_name_vocabulary=CF Standard Name Table v32
temporal_extent=86400.0
temporal_extent_unit=seconds
time_coverage_end=2024-11-14T12:00:00Z
time_coverage_start=2020-01-01T12:00:00Z
Westernmost_Easting=-179.875

高级散射计（ASCAT）海洋表面风速数据集代表10米中性稳定性风速。该数据集由美国国家海洋和大气管理局（NOAA）/国家环境卫星、数据和信息服务（NESDIS）处理，利用欧洲气象卫星组织（EUMETSAT）METOP卫星上的ASCAT传感器获取的测量值。当前使用的地球物理模型函数（GMF）为CMOD5.5，其中GMF将归一化雷达截面积与海洋表面风速及其方向相关联。所有日期和时间均采用协调世界时（UTC），亦称格林尼治标准时间（GMT）、Zulu时间（UT）和世界时间。数据集类型为网格，联系人为[e-mail]，遵循CF-1.6、COARDS、ACDD-1.3等约定。地理空间坐标范围为西经179.875度至东经179.875度，南纬89.875度至北纬89.875度，分辨率为0.25度。数据集的历史记录包括文件附加时间、变量重命名、属性附加等信息。数据集由NOAA提供，使用GCMD科学关键词词汇表，支持单线程NCO操作，空间分辨率为0.25度，时间范围为2020年1月1日至2024年11月14日，覆盖86400秒。