Download data from coastal-stns-Vol-monthly%2Eupdated-oct2007%2Enc


Parent directory

Global attributes

NC_GLOBAL
history
Tue Sep 2 10:17:08 2008: ncatted -O -a long_name,area_mou,o,c,drainage area at river mouth coastal-stns-Vol-monthly.updated-oct2007.nc Wed Jun 25 13:06:44 2008: ncatted -O -a title,global,o,c,Monthly streamflow from downstream stations for World's 925 ocean-reaching rivers. Created by Aiguo Dai/NCAR (adai@ucar.edu). Refs.: Dai, A., and K. E. Trenberth, 2002: Estimates of freshwater discharge from continents: Latitudinal and seasonal variations. J. Hydrometeorol., 3, 660-687; and Dai, A., T. Qian, K. E. Trenberth, and J. D Milliman, 2008: Changes in continental freshwater discharge from 1949-2004. J. Climate, submitted. coastal-stns-Vol-monthly.updated-oct2007v2.nc
source_file
coastal-stns-Vol-monthly.nc + grdc.2004 Updates (Note: 4 Changjiang, 14 Ganges, 16 St Lawrence, 17 Amur, 19 Mackenzie, 23 Uruguay, 24 Yukon, 26 Danube, 27 Niger, 32 Nelson, 35 Kolyma, 44 Maroni, 52 Benue, 96 Saint John, 97 Olenek, 101 Manicouagan, 178 Fitzroy-QX, 192 Guadalquivir use upstream/downstream stations with longer record to merge. Vstation = Vupstream*ratio, where the ratio is the monthly climatological streamflow ratio between the two stations within the common period)
Conventions
NCAR
creation_date
Fri Apr 21 14:52:14 MDT 2006 by tqian
title
Monthly streamflow from downstream stations for World's 925 ocean-reaching rivers. Created by Aiguo Dai/NCAR (adai@ucar.edu). Refs.: Dai, A., and K. E. Trenberth, 2002: Estimates of freshwater discharge from continents: Latitudinal and seasonal variations. J. Hydrometeorol., 3, 660-687; and Dai, A., T. Qian, K. E. Trenberth, and J. D Milliman, 2008: Changes in continental freshwater discharge from 1949-2004. J. Climate, submitted.
DODS_EXTRA
Unlimited_Dimension
time

Downloading data

In the form below you can specify desired variables and their dimensions, and have the data downloaded in different formats depending on the server configuration.

riv_name

:

:

long_name
river name
_FillValue

lon

:

units
degrees_east
long_name
station longitude

ocn_name

:

:

long_name
ocean name of river discharge
_FillValue

ratio_m2s

:

long_name
ratio of volume between river mouth and station
_FillValue
-999.0

station

:

units
unitless
long_name
station index
_FillValue
-999

lat_mou

:

units
degrees_north
long_name
river mouth latitude

id

:

long_name
station id

stn_name

:

:

long_name
station name
_FillValue

yrb

:

long_name
begining record year at station
_FillValue
-999

FLOW

:

:

units
m3/s
long_name
monthly mean volume at station
_FillValue
-999.0

yre

:

long_name
ending record year at station
_FillValue
-999

area_stn

:

units
km2
long_name
drainage areas at station

station_1800

:

units
stations from 0-10
long_name
coastal station by vol. since 1800

FLOW_1800

:

:

units
m3/s
_FillValue
-99999.0
long_name
monthly mean volume at station since 1800

lon_mou

:

units
degrees_east
long_name
river mouth longitude

chars

:

long_name
maximum characters

time

:

units
unitless
long_name
time as YYYYMM
_FillValue
-999

ct_name

:

:

long_name
country of station
_FillValue

cn_name

:

:

long_name
continent of station
_FillValue

lat

:

units
degrees_north
long_name
station latitude

vol_stn

:

units
km3/yr
long_name
annual volume at station
_FillValue
-999.0

time_1800

:

units
months since 1800 01
long_name
date as YYYYMM

elev

:

units
m
long_name
elevation at station
_FillValue
-999.0

xnyr

:

units
years
long_name
total record years at station
_FillValue
-999.0

area_mou

:

units
km2
long_name
drainage area at river mouth

index_id_1800

:

long_name
id index for station since 1800
_FillValue
-999

as

Downloading data with Ferret

To access this dataset with the Ferret visualization and analysis environment from PMEL:

$ ferret
yes? use "http://opendap.ccst.inpe.br/Observations/Dai_and_Trenberth/coastal-stns-Vol-monthly.updated-oct2007.nc"
yes? show data

Downloading data with GrADS

To access this dataset with the GrADS data analysis and visualization software developed by COLA:

$ gradsdap
ga-> sdfopen http://opendap.ccst.inpe.br/Observations/Dai_and_Trenberth/coastal-stns-Vol-monthly.updated-oct2007.nc
ga-> query file

Downloading data with IDL

To access this dataset with the OPeNDAP IDL Client, a tool for the IDL data analysis and visualization package:

IDL> url = 'http://opendap.ccst.inpe.br/Observations/Dai_and_Trenberth/coastal-stns-Vol-monthly.updated-oct2007.nc'
IDL> stat = opendap_get(url, def, mode='dds')
IDL> help, def, /structures

Downloading data with Pydap

To access this dataset using the Pydap Python module:

$ python
>>> from pydap.client import open_url
>>> dataset = open_url("http://opendap.ccst.inpe.br/Observations/Dai_and_Trenberth/coastal-stns-Vol-monthly.updated-oct2007.nc")
>>> import pprint
>>> pprint.pprint( dataset.keys() )
['riv_name',
 'lon',
 'ocn_name',
 'ratio_m2s',
 'station',
 'lat_mou',
 'id',
 'stn_name',
 'yrb',
 'FLOW',
 'yre',
 'area_stn',
 'station_1800',
 'FLOW_1800',
 'lon_mou',
 'chars',
 'time',
 'ct_name',
 'cn_name',
 'lat',
 'vol_stn',
 'time_1800',
 'elev',
 'xnyr',
 'area_mou',
 'index_id_1800']

Downloading data with other Opendap clients

There are other Opendap clients that can access this dataset, including Matlab and several command line utilities. You should know that the URL for this dataset is http://opendap.ccst.inpe.br/Observations/Dai_and_Trenberth/coastal-stns-Vol-monthly.updated-oct2007.nc (i.e., the .html extension should be omitted when opening this dataset on an Opendap client).

Open in Google Earth.


pydap/3.1.RC1