Recipe: Retrieve data subsets using download tool: Difference between revisions

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Back to [[G5NR Data Access Guide]].

== Problem ==

We want to download data ~~(global or subsetted)~~ using the download tool.

We want to download data subsets using the download tool.

== Solution ==

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The base url for the download tool for G5NR data is

~~http~~://portal.nccs.nasa.gov/cgi-lats4d/opendap.cgi?&path=/OSSE/~~GEOS-5.12.~~

https://portal.nccs.nasa.gov/cgi-lats4d/opendap.cgi?&path=/OSSE/G5NR/Ganymed/7km

To download a subset of the collection inst01hr_3d_T_Cv, from the above url, one can follow links [0.5000_deg → inst → Download (for the appropriate collection)] to the collection's download page at ~~http~~://portal.nccs.nasa.gov/cgi-lats4d/webform.cgi?&i=OSSE/~~GEOS-5.12~~/0.5000_deg/inst01hr_3d_T_Cv. Here one can select variables~~, the~~ begin ~~and~~ end times, vertical levels (for 3D data), spatial subset (by drawing a box or specifying the lats/lons) and download the resulting data in a format of choice (compressed NetCDF-4, little endian binary etc.).

To download a subset of the collection inst01hr_3d_T_Cv, from the above url, one can follow links [0.5000_deg → inst → Download (for the appropriate collection)] to the collection's download page at

https://portal.nccs.nasa.gov/cgi-lats4d/webform.cgi?&i=OSSE/G5NR/Ganymed/7km/0.5000_deg/inst/inst01hr_3d_T_Cv.

Here one can select

* variables

* begin/end times

* vertical levels (for 3D data)

* spatial subset (by drawing a box or specifying the lats/lons)

and download the resulting data in a format of choice (compressed NetCDF-4, little endian binary etc.).

==== Command line interface ====

<!--

~~==== Command line interface ====~~

* Command line/Python script - There has to be a way to construct the POST request and then potentially use the Python requests module???

-->

== See Also ==

# File Spec: [[File:G5NR-Ganymed-7km FileSpec-ON6-V1.0.pdf]]

@@ Line 1: / Line 1: @@
+Back to [[G5NR Data Access Guide]].
 == Problem ==
-We want to download data (global or subsetted) using the download tool.
+We want to download data subsets using the download tool.
 == Solution ==
@@ Line 10: / Line 12: @@
 The base url for the download tool for G5NR data is
-http://portal.nccs.nasa.gov/cgi-lats4d/opendap.cgi?&path=/OSSE/GEOS-5.12.
+ https://portal.nccs.nasa.gov/cgi-lats4d/opendap.cgi?&path=/OSSE/G5NR/Ganymed/7km
-To download a subset of the collection inst01hr_3d_T_Cv, from the above url, one can follow links [0.5000_deg → inst → Download (for the appropriate collection)] to the collection's download page at http://portal.nccs.nasa.gov/cgi-lats4d/webform.cgi?&i=OSSE/GEOS-5.12/0.5000_deg/inst01hr_3d_T_Cv. Here one can select variables, the begin and end times, vertical levels (for 3D data), spatial subset (by drawing a box or specifying the lats/lons) and download the resulting data in a format of choice (compressed NetCDF-4, little endian binary etc.).
+To download a subset of the collection inst01hr_3d_T_Cv, from the above url, one can follow links [0.5000_deg → inst → Download (for the appropriate collection)] to the collection's download page at
+ https://portal.nccs.nasa.gov/cgi-lats4d/webform.cgi?&i=OSSE/G5NR/Ganymed/7km/0.5000_deg/inst/inst01hr_3d_T_Cv.
+Here one can select
+* variables
+* begin/end times
+* vertical levels (for 3D data)
+* spatial subset (by drawing a box or specifying the lats/lons)
+and download the resulting data in a format of choice (compressed NetCDF-4, little endian binary etc.).
+==== Command line interface ====
 <!--
-==== Command line interface ====
 * Command line/Python script - There has to be a way to construct the POST request and then potentially use the Python requests module???
 -->
+== See Also ==
+# File Spec: [[File:G5NR-Ganymed-7km FileSpec-ON6-V1.0.pdf]]