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Dataset Title:  NOAA Climate Data Record of PERSIANN-CDR daily precipitation lon_bnds By
longitude, nv
Institution:  UC-IRVINE/CHRS, Center for Hydrometeorology and Remote Sensing, University of California, Irvine   (Dataset ID: cdr_persiann_by_lon_nv)
Information:  Summary ? | License ? | Metadata | Background | Make a graph
Dimensions ? Start ? Stride ? Stop ?  Size ?    Spacing ?
 longitude (degrees_east) ?      1440    0.25 (even)
  < slider >
 nv (count) ?      2    1.0 (even)
  < slider >
Grid Variables (which always also download all of the dimension variables) 
 lon_bnds ?

File type: (more information)

(Documentation / Bypass this form) ?
(Please be patient. It may take a while to get the data.)


The Dataset Attribute Structure (.das) for this Dataset

Attributes {
  longitude {
    String _CoordinateAxisType "Lon";
    Float32 actual_range 0.125, 359.875;
    String axis "X";
    String bounds "lon_bnds";
    String ioos_category "Location";
    String long_name "Longitude";
    String standard_name "longitude";
    String units "degrees_east";
    Float32 valid_max 360.0;
    Float32 valid_min 0.0;
  nv {
    Int16 actual_range 0, 1;
    String units "count";
  lon_bnds {
    String _CoordSysBuilder "ucar.nc2.dataset.conv.CF1Convention";
    String cdm_data_type "Grid";
    String cdr_program "NOAA Climate Data Record Program";
    String cdr_variable "precipitation";
    String comment "Daily PERSIANN-CDR precipitation estimates for long-term data record. [NOTE: v01r01 replaces v01r00]";
    String contributor_name "Soroosh Sorooshian, Kuolin Hsu, Hamed Ashouri, Dan Braithwaite";
    String contributor_role "PrincipalInvestigator, Professor, Author, Author";
    String Conventions "CF-1.4";
    String creator_email "";
    String creator_name "Dan Braithwaite";
    String creator_url "";
    String date_created "2024-04-16T00:07:53Z";
    String datetime "2023-12-30";
    Float64 Easternmost_Easting 359.875;
    Float64 geospatial_lon_max 359.875;
    Float64 geospatial_lon_min 0.125;
    Float64 geospatial_lon_resolution 0.25;
    String geospatial_lon_units "degrees_east";
    String history 
"FMRC Best Dataset
    String id "";
    String infoUrl "";
    String institution "UC-IRVINE/CHRS, Center for Hydrometeorology and Remote Sensing, University of California, Irvine";
    String keywords "Earth Science > Atmosphere > Precipitation";
    String keywords_vocabulary "GCMD Keywords, Version";
    String license "No constraints on data access or use.";
    String location "Proto fmrc:PERSIANN:_aggregation";
    String Metadata_Conventions "CF-1.6,Unidata Dataset Discovery v1.0, NOAA CDR v1.0, GDS v2.0";
    String metadata_link "gov.noaa.ncdc:C00854";
    String naming_authority "gov.noaa.ncdc";
    String product_version "v01r01";
    String project "Satellite Data Support for Hydrologic and Water Resources Planning and Management.  Sponsor: NOAA";
    String source ",,,,,,,,gpcpv23_m2312.bin";
    String sourceUrl "";
    String spatial_resolution "0.25 degrees";
    String standard_name_vocabulary "CF Standard Name Table (v26, 08 November 2013)";
    String summary "NOAA Climate Data Record (CDR) of Precipitation Estimation from Remotely Sensed Information using Artificial Neural Networks (PERSIANN-CDR), Version 1 Revision 1. Daily near global precipitation estimates at 0.25 deg resolution over 30-year record. [NOTE: v01r01 replaces v01r00] lon_bnds Dimensioned By longitude, nv.";
    String title "NOAA Climate Data Record of PERSIANN-CDR daily precipitation lon_bnds By longitude, nv";
    Float64 Westernmost_Easting 0.125;


Using griddap to Request Data and Graphs from Gridded Datasets

griddap lets you request a data subset, graph, or map from a gridded dataset (for example, sea surface temperature data from a satellite), via a specially formed URL. griddap uses the OPeNDAP (external link) Data Access Protocol (DAP) (external link) and its projection constraints (external link).

The URL specifies what you want: the dataset, a description of the graph or the subset of the data, and the file type for the response.

griddap request URLs must be in the form{?query}
For example,[(2007-10-21T00:00:00)][0][(-75):100:(75)][(180):100:(360)]
Thus, the query is often a data variable name (e.g., sst), followed by [(start):stride:(stop)] (or a shorter variation of that) for each of the variable's dimensions (for example, [time][altitude][latitude][longitude]).

For details, see the griddap Documentation.

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