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* River Routine Tips [#ja1d75b9]
- Description of a river model attached with CCSR/NIES GCM
- Main program: src/physics/pgriv.F
- Material: &ref(./061101TRIP-GCM.pdf);

Contents
#contents
** Old version [#u42979f9]
- No TRIP (Oki and Sud, 1998) formulation.
-- Explicit function.
- Calculation by I-J cordination order (NOT from upstream to downstream) 

** New Version (as of 2006/11/24) [#k5578501]
- Source Code: &ref(pgriv.F.txt);
- TRIP formulation (analytic solution of transport equation) is incorpolated. (add -DOPT_TRIP in Mkinclude)
- Parallel calculation is realized without bugs.
- Distinguish RUNOF (runoff from LSM) and RRUNOF (river runoff).
- Give RDEST values (distance to adjacent grid) to river mouth (IMAP=9)
- No consideration of "Meandering ratio". --> Can be considered by a change of flow velocity.
- Verified version:
-- 5.6b
** Isotopic Version (as of 2006/11/24) [#f202db5f]
- Source Code: &ref(pgriv-isomat.F.txt);
- nonstd/pgriv-isomat.F
- Works with
--DOPT_NTR=4 (3: Oxygen iso, 4: Hydrogen iso)
--KRIVMAX>=1
- Verified version:
--5.6b (with Iso-MATSIRO)

** River Only Version (as of 2006/02/01 for Sakimura-kun) [#h3789b42]
Making a new project, offriv, to src/proj.
- Main Source Code: &ref(aadmnsfc-riv.F.txt);
- nonstd/aadmnsfc-riv.F.txt
- Tar file: &ref(offriv.tar);
-- extract it in $AGCMDIR/
- Input: 
-- RUNOFF (and IRUNOFF for isotope)
- Output:
-- RFLOW (and RFLOWXX for isotope): river flow (kg/s)
-- GDRIV (and GDRIVXX for isotope): river storage (kg/m/m)
-- RRUNOF (and RRUNOFXX for isotope): river runoff (kg/m/m/s) -> river flow divided by grid size.
-- INFLW (and INFLWXX for isotope): inflow to river (kg/m/m/s) -> sum of LSM runoff and flow from upstream.  
-- XX is 01 and/or 02.