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Load selection GFS-ensemble openDAP data into memory (Python)

由 生来就可爱ヽ(ⅴ＜●) 提交于 2020-12-06 12:25:26
问题 I want to download a subselection from GFS-ensemble data from an OpenDAP server via netCDF and xarray. However, when trying to load the subselection into memory, the program crashes after a while returning a RuntimeError (netCDF: I/O failure). The amount of data points I wish to obtain is 13650, therefore the data size should be easily handleable in Python. Oddly enough, I do not experience this problem when downloading GFS-data or NCEP-Reanalysis data. This makes me believe that the issue

Load selection GFS-ensemble openDAP data into memory (Python)

由 让人想犯罪 __ 提交于 2020-12-06 12:24:14
问题 I want to download a subselection from GFS-ensemble data from an OpenDAP server via netCDF and xarray. However, when trying to load the subselection into memory, the program crashes after a while returning a RuntimeError (netCDF: I/O failure). The amount of data points I wish to obtain is 13650, therefore the data size should be easily handleable in Python. Oddly enough, I do not experience this problem when downloading GFS-data or NCEP-Reanalysis data. This makes me believe that the issue

Load selection GFS-ensemble openDAP data into memory (Python)

由 旧城冷巷雨未停 提交于 2020-12-06 12:24:12
问题 I want to download a subselection from GFS-ensemble data from an OpenDAP server via netCDF and xarray. However, when trying to load the subselection into memory, the program crashes after a while returning a RuntimeError (netCDF: I/O failure). The amount of data points I wish to obtain is 13650, therefore the data size should be easily handleable in Python. Oddly enough, I do not experience this problem when downloading GFS-data or NCEP-Reanalysis data. This makes me believe that the issue

Load selection GFS-ensemble openDAP data into memory (Python)

由 好久不见. 提交于 2020-12-06 12:23:59
问题 I want to download a subselection from GFS-ensemble data from an OpenDAP server via netCDF and xarray. However, when trying to load the subselection into memory, the program crashes after a while returning a RuntimeError (netCDF: I/O failure). The amount of data points I wish to obtain is 13650, therefore the data size should be easily handleable in Python. Oddly enough, I do not experience this problem when downloading GFS-data or NCEP-Reanalysis data. This makes me believe that the issue

MATLAB datenum日期转换为Python日期

由 我的梦境 提交于 2020-05-09 07:56:12
摘要 MATLAB datenum时间格式参数众多，本文只简单关注 units 参数，即基准年份和计时度量（天、小时）。 命令行演示在 ipython 和 Octave 中进行。 示例1：小时制，基准年份1800-1-1 Time Attributes: units = 'hours since 1800-1-1 00:00:0.0' long_name = 'Time' axis = 'T' standard_name = 'time' coordinate_defines = 'start' delta_t = '0000-00-01 00:00:00' actual_range = [1.74e+06 1.75e+06] avg_period = '0000-00-01 00:00:00' time(1:5): 1744392 1744416 1744440 1744464 1744488 #来源： 参考1 # python import numpy as np origin = np.datetime64('1800-01-01', 'D') date1 = 1744392/24 * np.timedelta64(1, 'D') + origin # '1999-01-01' 示例2：一天制，基准年份1800-1-1 time { String units "days

python load OpenDap to NetcdfFile

由 ↘锁芯ラ 提交于 2019-12-13 18:02:28
问题 I am opening netcdf data from an opendap server (a subset of the data) using an URL. When I open it the data is (as far as I can see) not actually loaded until the variable is requested. I would like to save the data to a file on disk, how would I do this? I currently have: import numpy as np import netCDF4 as NC url = u'http://etc/etc/hourly?varname[0:1:10][0:1:30]' set = NC.Dataset(url) # I think data is not yet loaded here, only the "layout" varData = set.variables['varname'][:,:] # I

Using Javascript to make parallel server requests THREDDS OPeNDAP

由 流过昼夜 提交于 2019-12-12 03:15:15
问题 For the following THREDDS OPeNDAP server: http://data.nodc.noaa.gov/thredds/catalog/ghrsst/L2P/MODIS_T/JPL/2015/294/catalog.html I would like to note four Attributes of every file in there. The attributes are: northernmost lattitude; easternmost lattitude; westernmost lattitude; southernmost lattitude. These can be found under the Global attributes under: http://data.nodc.noaa.gov/thredds/dodsC/ghrsst/L2P/MODIS_T/JPL/2015/294/20151021-MODIS_T-JPL-L2P-T2015294235500.L2_LAC_GHRSST_N-v01.nc.bz2

Get data from OpenDap server that requires authentication using R

由 半世苍凉 提交于 2019-12-11 15:19:22
问题 I'm trying to get data from an OPeNDAP server using R and the ncdf4 package. However, the nasa eosdis server requires username / password. How can I pass this info using R? Here is what I'm trying to do: require(ncdf4) f1 <- nc_open('https://disc2.gesdisc.eosdis.nasa.gov/opendap/TRMM_L3/TRMM_3B42.7/2018/020/3B42.20180120.15.7.HDF') And the error message: Error in Rsx_nc4_get_vara_double: NetCDF: Authorization failure syntax error, unexpected WORD_WORD, expecting SCAN_ATTR or SCAN_DATASET or
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