Long-term mean data of river mouth outflow and continental discharge 
into the individual and global oceans (for details see Dai and Trenberth
2002, J. Hydrometeorol., reprints are available online from 
http://www.cgd.ucar.edu/cas/adai/publication-dai.html ). 
Created by Dr. Aiguo Dai of NCAR (adai@ucar.edu). Date: March 2002.


Data files:

runoff-table2-top50r.txt  : annual discharge for world's top 50 rivers 
                          : (Table 2 of Dai and Trenberth 2002)

runoff-table-A.txt        : annual discharge for world's top 51-200 river 
                          : (Table A of Dai and Trenberth 2002)
runoff-monthly-top200River.txt : long-term mean monthly flow at the
				 farthest downstream station for the top 
				 200 rivers listed in  
				 coastal-stns-byVol-top200R.txt.
coastal-stns-byVol-top200R.txt : long-term mean annual flow and station 
			         locations for the top 200 rivers by volume
				 at the stations. Note the sequence may be
				 slightly different from that in 
				 runoff-table2-top50r.txt and 
				 runoff-table-A.txt as river mouth flow was
				 used for the order in the latter two files.

runoff-1deg-lat-ann.dat             : annual discharge for each 1deg lat zone

runoff-1deg-smoothed-lat-ann.dat    : 5-deg-lat smoothed annual discharge 

runoff-5deg-lat-ann.dat             : annual discharge for each 5deg lat zone

runoff-cumulative-1deg-lat-ann.dat  : comulative annaul discharge at 1deg resol

runoff-cumulative-5deg-lat-ann.dat  : comulative annual discharge at 5deg resol


runoff2ocean-mon-RTM-iexcld=1-Fekete.datt2 : monthly discharge at 1 deg resol.
                                       : based on Fekete et al. (2000) runoff

runoff2ocean-mon-fromStn-scaled.dat  : monthly discharge (3rd col.) at 1deg 
                                     : resol. based on 921-rivers. Un-monitored
                                     : areas are accounted for as described in
                                     : Dai & Trenberth (2002). Also included 
                                     : are drainage area (4th col.), cumulative
                                     : discharge (5th col.) and cumulative 
                                     : drainage area (6th col.). The drainage
                                     : areas are based on STN-30p river 
                                     : data base. 
				     : Note the annual value here is slightly
				     : larger than from the annual file because
				     : a few upstream rivers were included in
				     : this run (they should have been excluded, 
				     : as is case in the annual file). 
				     : Note: The data for the mean seasonal cycle
				     : of the discharge (Fig. 12, thick solid line
				     : in Dai & Trenberth 2002) are included at the
				     : end of this file,with each row for a month
				     : (row 13=annual mean) and each column for one
				     : ocean basin, from left to right: 'Atlantic', 
				     : 'Pacific', 'Indian', 'Arctic', 'Mediterranean', 
                                     : 'Global Oceans'. Unit=Sv or 1E6 m3/s 

The following files are standard Unix Fortran binary format (with
sequential access). The 2-dim. grids are 1x1 deg and 4 (lat) x 5 (lon)
deg grids with box (1,1) is centered at (179.5W, 89.5S) for the 1deg
grid and (177.5W, 88.0S) for the 4x5 grid. The values are discharge
(in Sv or 1E6 m3/s) within the coastal boxes (some boxes may be at 
the farthest downstream stations of small rivers and thus not right
on the coasts in the 921 river case. These boxes need to be included 
in computing discharge from a lat zone). Each annual file (*ann.bin)
contains one map of real runoff(360,180) for 1deg grid or runoff(72,45) 
for 4x5 grid (the annual files for 921 river and Fekete cases also contain
a second 1deg map for basin index and a third 1deg map for drainage area).  
Each monthly file (*mon.bin) contains 12 maps or records.

runoff-2d-921River-1deg-ann.bin  : annual discharge on 1x1 grid for 921 R. case
runoff-2d-921River-4x5-ann.bin   : annual discharge on 4x5 grid for 921 R. case
runoff-2d-921River-1deg-mon.bin : monthly discharge on 1x1 grid for 921 R. case
runoff-2d-921River-4x5-mon.bin  : monthly discharge on 4x5 grid for 921 R. case

runoff-2d-Fekete-1deg-ann.bin  : annual discharge on 1x1 grid for Fekete case
runoff-2d-Fekete-4x5-ann.bin   : annual discharge on 4x5 grid for Fekete case
runoff-2d-Fekete-1deg-mon.bin  : monthly discharge on 1x1 grid for Fekete case
runoff-2d-Fekete-4x5-mon.bin   : monthly discharge on 4x5 grid for Fekete case
 
runoff-2d-NCEP-1deg-ann.bin  : annual discharge on 1x1 grid for NCEP case
runoff-2d-NCEP-4x5-ann.bin   : annual discharge on 4x5 grid for NCEP case

runoff-2d-ECMWF-1deg-ann.bin  : annual discharge on 1x1 grid for ECMWF case
runoff-2d-ECMWF-4x5-ann.bin   : annual discharge on 4x5 grid for ECMWF case