Global Monthly Result Data

TOP >> Result >> Global >> Monthly

(Original Dir:data/Monthly/Global(Data)Cdata/Monthly/global(Figures))

Content

  1. Runoff from each 0.5deg grids calculated by GSWP LSM experiments
  2. Potential/Real Irrigation water demand estimated by EPIC (by Dr. Tan)
  3. Runoff from each 1deg grids calculated by GSWP2 LSM experiments

Compiled Figures

Comparison of various global monthly discharge dataset

Global Water supply vs. EPIC agricultural water demand

Deccan High

Difference in Ideal irrigation and actual irrigation estimated by EPIC is markedly large around Deccan High, India (see annual result). Following is monthly comparison between the two. The area is rectangular : Lon = 72.5 to 85E / Lat = 7.5 to 25N. The unit is 109m3.

  IDEAL ACTUAL
1.000 81.722 96.363
2.000 203.401 139.017
3.000 308.413 186.344
4.000 168.171 127.993
5.000 49.917 64.130
6.000 7.385 13.851
7.000 18.324 4.610
8.000 71.125 35.879
9.000 97.776 100.776
10.000 61.750 78.388
11.000 53.219 67.186
12.000 47.856 33.881
Total 1169.059 948.418

Yellow River

Comparison between 'Ideal' and 'Actual' irrigation estimated by EPIC and runoff produced from each grid cells (GSWP result) : basin sum of yellow river (TRIP river number = 33)

  Monthly Water Balance- basin total (10**6 m3)
Month LSM output Runoff EPIC(Maximum) EPIC(real)
1 1133.51 1513.62 745.61
2 1794.38 7549.87 1470.55
3 2669.50 7680.39 597.92
4 3131.14 7161.88 1335.66
5 4465.19 20605.09 3044.86
6 8661.90 19091.50 3035.73
7 9271.30 14573.51 2365.10
8 8998.34 12311.51 1324.70
9 6942.21 10725.88 505.22
10 4769.74 8297.75 3931.08
11 2791.06 8265.98 641.45
12 1207.50 5030.31 888.36 
setenv BASIN_TO_FIND 33

setenv MONTHLY_DATA_DIR ${GW_DATA_HOME}/data/Monthly/Global
setenv BASIN_FILE       ${GW_DATA_HOME}/data/BaseMap/rivnum.asc
setenv YEAR2 '87'

foreach MONTH2 ( 01 02 03 04 05 06 07 08 09 10 11 12 )
	setenv MONTH `echo $MONTH2 | awk '{ printf("%d", $1) }'`
	setenv RUNOFF_FILE   ${MONTHLY_DATA_DIR}/XYZ/Ro.Mean${YEAR2}${MONTH2}.asc
	setenv EPIC_MAX_FILE ${MONTHLY_DATA_DIR}/XYZ/epic_m${MONTH}_106m3.asc
	setenv EPIC_FILE     ${MONTHLY_DATA_DIR}/XYZ/epic-real_m${MONTH}_106m3.asc
	setenv RUNOFF_SUM     `bin/asc_calc ${RUNOFF_FILE}    where ${BASIN_FILE} '==' $BASIN_TO_FIND sum`
	setenv AGRI_MAX_SUM   `bin/asc_calc ${EPIC_MAX_FILE}  where ${BASIN_FILE} '==' $BASIN_TO_FIND sum`
	setenv AGRI_SUM       `bin/asc_calc ${EPIC_FILE}      where ${BASIN_FILE} '==' $BASIN_TO_FIND sum`
	echo $MONTH2,$RUNOFF_SUM,${AGRI_MAX_SUM},$AGRI_SUM
end
AGATASHI