Recipe: Retrieve (global) data from FTP server: Difference between revisions
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<span style="color:red"><font size=40>NOTE: NCCS has disabled the FTP option. It no longer works!</font></span> | |||
Back to [[G5NR Data Access Guide]]. | |||
== Problem == | == Problem == | ||
We want to access G5NR data by downloading files | We want to access G5NR data by downloading files from the <code>ftp</code> server using either a web browser or the command line tool <code>wget</code>. | ||
== Solution == | == Solution == | ||
'''NOTE:''' If you are bookmarking an <code>ftp</code> location you may need to manually add G5NR@ to the bookmarked url. | |||
The base url for G5NR data is | The base url for G5NR data is | ||
ftp://G5NR@ftp.nccs.nasa.gov/c1440_NR/ | ftp://G5NR@ftp.nccs.nasa.gov/Ganymed/7km/c1440_NR/ | ||
At this location, the data is organized by resolution (0.5000_deg/0.0625_deg), type (const/inst/tavg/tdav), collection name, year, month and day as follows: | At this location, the data is organized by resolution (0.5000_deg/0.0625_deg), type (const/inst/tavg/tdav), collection name, year, month and day as follows: | ||
|-- resolution | DATA | ||
| |-- type | |---resolution | ||
| | |-- collection | | |---type | ||
| | | |-- year | | | |---collection | ||
| | | | |-- month | | | | |---year | ||
| | | | | |-- day | | | | | |---month | ||
| | | | | |---day | |||
[some details on what the types are etc.] | [some details on what the types are etc.] | ||
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A web browser can be used to browse directories, read and retrieve files. To retrieve the collection <code>inst01hr_3d_T_Cv</code> for the day 2006-09-18, one needs to point to | A web browser can be used to browse directories, read and retrieve files. To retrieve the collection <code>inst01hr_3d_T_Cv</code> for the day 2006-09-18, one needs to point to | ||
ftp://G5NR@ftp.nccs.nasa.gov/c1440_NR/DATA/0.5000_deg/inst/inst01hr_3d_T_Cv/Y2006/M09/D18. | ftp://G5NR@ftp.nccs.nasa.gov/Ganymed/7km/c1440_NR/DATA/0.5000_deg/inst/inst01hr_3d_T_Cv/Y2006/M09/D18. | ||
At this location, a file may be downloaded by simply clicking on the file name. | At this location, a file may be downloaded by simply clicking on the file name. | ||
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The command line tool <code>wget</code> can be used to retrieve the same files as | The command line tool <code>wget</code> can be used to retrieve the same files as | ||
wget ftp://G5NR:@ftp.nccs.nasa.gov/c1440_NR/DATA/0.5000_deg/inst/inst01hr_3d_T_Cv/Y2006/M09/D18/* | wget ftp://G5NR:@ftp.nccs.nasa.gov/Ganymed/7km/c1440_NR/DATA/0.5000_deg/inst/inst01hr_3d_T_Cv/Y2006/M09/D18/* | ||
The <code>*</code> at the end would retrieve all (24) files for the given day. | The <code>*</code> at the end would retrieve all (24) files for the given day. | ||
To download a file for a specific time, say 0900z, we can use | To download a file for a specific time, say 0900z, we can use | ||
wget ftp://G5NR:@ftp.nccs.nasa.gov/c1440_NR/DATA/0.5000_deg/inst/inst01hr_3d_T_Cv/Y2006/M09/D18/c1440_NR. | wget ftp://G5NR:@ftp.nccs.nasa.gov/Ganymed/7km/c1440_NR/DATA/0.5000_deg/inst/inst01hr_3d_T_Cv/Y2006/M09/D18/c1440_NR.inst01hr_3d_T_Cv.20060918_0900z.nc4 | ||
== Discussion == | == Discussion == | ||
== See Also == | == See Also == | ||
# File Spec: [[File:G5NR-Ganymed-7km FileSpec-ON6-V1.0.pdf]] | |||
== No Warranty == | == No Warranty == | ||
== Copyright == | == Copyright == | ||