Currents, HF Radar, US East Coast and Gulf of Mexico, RTV, Near-Real Time, 2012-present, Hourly, 2km

Surface ocean velocities estimated from HF-Radar are representative
of the upper 1.0 meters of the ocean. The main objective of
near-real time processing is to produce the best product from
available data at the time of processing. Radial velocity
measurements are obtained from individual radar sites through the
U.S. HF-Radar Network. Hourly radial data are processed by unweighted
least squares on a 2km resolution grid of the U.S. East and Gulf
Coast to produce near real-time surface current maps.
_CoordSysBuilder=ucar.nc2.dataset.conv.CF1Convention
cdm_data_type=Grid
Conventions=COARDS, CF-1.6, ACDD-1.3
defaultGraphQuery=&.draw=vectors&.color=0x0000FF
Easternmost_Easting=-57.19249
format_version=1.1.00
geospatial_lat_max=46.49442
geospatial_lat_min=21.7
geospatial_lat_resolution=0.01798
geospatial_lat_units=degrees_north
geospatial_lon_max=-57.19249
geospatial_lon_min=-97.88385
geospatial_lon_resolution=0.019358401522359656
geospatial_lon_units=degrees_east
history=2024-09-30T19:21:51Z hfrnet rtvMergeData: Saving 3527 new solutions
2024-09-30T19:51:52Z hfrnet rtvMergeData: Saving 7280 solutions; 3753
new or updated, 3527 unmodified from previous run(s)
2024-09-30T20:21:37Z hfrnet rtvMergeData: Saving 7785 solutions; 508
new or updated, 7277 unmodified from previous run(s)
2024-09-30T20:51:47Z hfrnet rtvMergeData: Saving 8870 solutions; 3371
new or updated, 5499 unmodified from previous run(s)
2024-09-30T20:51:47Z hfrnet rtvSaveNetcdf: Removed 2389 solutions
exceeding HDOP threshold of 1.25 ;
FMRC Best Dataset
id=202409301800siohfruwlsrtvusegc2km
infoUrl=https://cordc.ucsd.edu/projects/mapping/
institution=Coastal Observing Research and Development Center, Scripps Institution of Oceanography
instrument=Earth Remote Sensing Instruments, Active Remote Sensing,
Profilers/Sounders, Radar Sounders, Doppler RADAR
instrument_vocabulary=Global Change Master Directory (GCMD) Keywords, Version 8.6
keywords_vocabulary=GCMD Science Keywords
location=Proto fmrc:HFRADAR_US_East_and_Gulf_Coast_2km_Resolution_Hourly_RTV
naming_authority=edu.ucsd.cordc
Northernmost_Northing=46.49442
processing_level=Near real-time dataset with automated data acquisition and processing
quality control
program=Integrated Ocean Observing System (IOOS)
references=Terrill, E. et al., 2006. Data Management and Real-time Distribution
in the HF-Radar National Network. Proceedings of the MTS/IEEE Oceans
2006 Conference, Boston MA, September 2006.
source=surface ocean velocity field from hf-radar
sourceUrl=https://hfrnet-tds.ucsd.edu/thredds/dodsC/HFR/USEGC/2km/hourly/RTV/HFRADAR_US_East_and_Gulf_Coast_2km_Resolution_Hourly_RTV_best.ncd
Southernmost_Northing=21.7
standard_name_vocabulary=CF Standard Name Table v70
testOutOfDate=now-1day
time_coverage_end=2024-12-03T12:00:00Z
time_coverage_start=2012-01-01T00:00:00Z
Westernmost_Easting=-97.88385

利用高频雷达技术估算的表观海面流速，能够精确反映海洋表层（深度0至1.0米）的运动状况。近实时处理的主要目标是，在数据处理过程中，从可用数据中提取最佳产品。通过美国高频雷达网络，各雷达站点获取径向速度测量值，并以2公里分辨率的网格对东海岸和墨西哥湾沿岸的径向数据进行加权最小二乘法处理，生成近实时的表面流场图。

坐标系统构建器：ucar.nc2.dataset.conv.CF1Convention
数据集类型：网格
遵循规范：COARDS, CF-1.6, ACDD-1.3
默认图形查询：&.draw=vectors&.color=0x0000FF
最东经度：-57.19249
格式版本：1.1.00
地理纬度最大值：46.49442
地理纬度最小值：21.7
地理纬度分辨率：0.01798
地理纬度单位：北纬度
地理经度最大值：-57.19249
地理经度最小值：-97.88385
地理经度分辨率：0.019358401522359656
地理经度单位：东经度
历史记录：2024-09-30T19:21:51Z hfrnet rtvMergeData: 保存3527个新解决方案
2024-09-30T19:51:52Z hfrnet rtvMergeData: 保存7280个解决方案；3753个新或更新，3527个未修改自前次运行
2024-09-30T20:21:37Z hfrnet rtvMergeData: 保存7785个解决方案；508个新或更新，7277个未修改自前次运行
2024-09-30T20:51:47Z hfrnet rtvMergeData: 保存8870个解决方案；3371个新或更新，5499个未修改自前次运行
2024-09-30T20:51:47Z hfrnet rtvSaveNetcdf: 移除超过HDOP阈值为1.25的2389个解决方案
最佳数据集：FMRC
ID：202409301800siohfruwlsrtvusegc2km
信息URL：https://cordc.ucsd.edu/projects/mapping/
机构：Coastal Observing Research and Development Center, Scripps Institution of Oceanography
仪器：地球遥感仪器，主动遥感，探空器/声纳，雷达声纳
仪器词汇：全球变化主目录（GCMD）关键词，版本8.6
关键词词汇：GCMD科学关键词
位置：Proto fmrc:HFRADAR_US_East_and_Gulf_Coast_2km_Resolution_Hourly_RTV
命名权威机构：edu.ucsd.cordc
最北纬度：46.49442
处理级别：近实时数据集，具有自动化数据采集和自动数据处理质量控制
项目：综合海洋观测系统（IOOS
参考文献：Terrill, E. et al., 2006. 高频雷达国家网络中的数据管理和实时分发。MTS/IEEE Oceans 2006会议论文集，波士顿，马萨诸塞州，2006年9月
数据源：来自高频雷达的表观海面流速场
数据源URL：https://hfrnet-tds.ucsd.edu/thredds/dodsC/HFR/USEGC/2km/hourly/RTV/HFRADAR_US_East_and_Gulf_Coast_2km_Resolution_Hourly_RTV_best.ncd
最南纬度：21.7
标准名称词汇：CF标准名称表v70
测试过时：now-1day
时间覆盖结束：2024-12-03T12:00:00Z
时间覆盖开始：2012-01-01T00:00:00Z
最西经度：-97.88385