Name: IMPAC-T future river discharge projection
Author: Cherry May Mateo
Contact: cherry.mateo@gmai.com

Brief History
    2013/08/15 Trial and initial calculation
    2013/08/17 Finished runoff and discharge calculations for 16 GCM-RCPs for time period 2080-2099
    2013/08/19 Files converted to NET-CDF format
    2013/09/04 Received IDD v2.1, the revised forcing data
    2013/09/19 Finished revised runoff and discharge calculations for 19 GCM-RCPs for time period 2040-2059 and 18 GCM-RCPs for time period 2080-2099 (cae2 had problems for the time period 2080-2099)
    2013/09/21 Files converted to NET-CDF format
    2014/01/20 Update: Evapotranspiration data also converted to NET-CDF format and uploaded in "IMPACT_NC_EVAP" folder. H08 settings are the same as in total runoff and river discharge.


Method in brief
    I have used the meteorological (met), land (lnd), and river (riv) modules of H08.
    I have used the IMPAC-T Driving Dataset (IDD) prepared by Dr. Watanabe
    The following land parameters have been used:
        Soil Depth (SD)     - 3.50
        Gamma               - 2.30
        Tau                 - 155.0
        Bulk transfer coeff - 0.007

Files in brief
    - 'dis' is short for river discharge; 'qtot' is short for total runoff
    - update: 'evap' in IMPACT_NC_EVAP folder is short for evapotranspiration
    - unit for discharge is kg(s-1); unit for both runoff and evapotranspiration is kg(m-2)(s-1)
    - monthly interval for the time periods a) 1981-2004: baseline simulation; b) 2040-2059: near future prediction; and c) 2080-2099: far future prediction

Nomenclature of folders based on IDD file nomenclature from Dr. Watanabe (information in parentheses indicate file nomenclature specific to the RCP scenarios) 
    bc1m ia bcc-csm1-1-m    (bc14 for RCP 4.5; bc18 for RCP 8.5)
    cae2 CanESM2            (ce24 for RCP 4.5; ce28 for RCP 8.5, available for 2040-2059 only)
    cnc5 CNRM-CM5           (cc54 for RCP 4.5; cc58 for RCP 8.5)
    cs36 CSIRO-Mk3.6        (cs64 for RCP 4.5; cs68 for RCP 8.5)
    ge2m GFDL-ESM2M         (ge24 for RCP 4.5; ge28 for RCP 8.5)
    inc4 INM-CM4            (in44 for RCP 4.5; in48 for RCP 8.5)
    ip5l IPSL-CM5A-LR       (ip54 for RCP 4.5; ip58 for RCP 8.5)
    mir5 MIROC5             (m542 for RCP 4.5; m582 for RCP 8.5)
    mrc3 MRI-GCM3           (mc34 for RCP 4.5; mc38 for RCP 8.5)
    hg2e HadGEM2-ES         (hg28 for RCP 8.5)

    BASE baseline simulation using T12 dataset from Kotsuki-san and Tanaka-sensei. Filenames start with "T12_LR25". To compare baseline simulation with GCM simulation results, use years 1981-1999 (19 years, as I do not have the complete meteorological dataset for 1980).

Caveats
    - Due to technical problems, the calculaiton of HadGEM2 for RCP 4.5 scenarioand CanESM2 for RCP 8.5 for time period 2080-2099 were postponed
    - Simulation results of IDD v2.0 (found to have very high precipitation which was appropriately corrected in IDD v2.1 by Dr. Watanabe) is archived in IMPACT_NC_v2.0 folder