WMOD00292

• Title: The Bureau of Reclaimation's Environmental Data Network
• Date: 6/6/1977
• Weather Modification - Doc Type: Report

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GPe", 77 VERSION. 2~25-71
AlL DATA F'OR STATION RECElvl:O
[l[N 71060612
RAOB 5U91llT"f AND HDI5WR[ SUHH.....y
ttSAR ABOVE SURF'ACE D-50 0-100 100-150 150-200 "'00-500 500-600
P1EAN lAPSE RATE tC/10I)P11 -.0'12 -.272 -.521 -.652 -.759 -.953
ttEAN I1IXING RATIO 'G/ICGI 9.631oJ 8.669 6.2'93 ...9't7 1.710 ...51
GREAT PUdNS CLtlUO ~OOCL 1916

CLO TOI' MAX .\1' AT "AX. AT
RAOIUS HIM HOT. TEMP. UPOR HGT. T[HP. REF'L HOT.
lKHJ I KMJ eel (HIS' (KI1I tel tOBI f KHJ
.50 HAT 1.2 -17..9 9./,f 5.8 -7.9 '*9.6 7.2
1"100 12.3 -61..5 11.7 9.... -3't.O ItS.6 7.6
l.DO HAT 13.0 -66.6 IB.1 11.1 -"'9.351.8 7.8
1100 13.0 -66.619.710.9 -lt6.8 50.2 8.6
1.50 NAT 13.3 -69.0 23.611.1 -'+8." 53.5 8.0
HOO 13.3 -68.9 25.2 11.1 -L,8.1of 51.2 9.7
2.00 NAT 13.7 -71.9 27.S 11.1t -50.35....5 8.2
HOD 13.7 -71.9 29.lt 11.1f -50.251.9 9.7
3.00 HAT 11t.1 -,....'+ 3lf.0 12.0 .5lf.6 55.8 B.1f
MOD 1'+.1 -71f.3 35.7 12.0 -5l.f.5 53.0 9.7
10.00 HAT 15.0 -80.l.f 1f5.6 12.0 -52.1f 61.0 12.0
HOD 15.5 -9....0 52.0 12.3 -5....156.811.1
CLOUD BASE PRt:SSURE 610. HeAR
CLOUD e....SE HE IGHT 3.6 KH 11756. FE[l-
CLOUD BASE TEMPER....T URE 7. 1 C
SUB CLOUD MiXING Rn 10 9.57 G/KG
SURrACE CONV. T[t':P. 26.6 C 80. F
CLOUO COVER 78. PERCENT
SURFACE TEMPERATuRE F.."E REQUIRED FOR MODEL-CALCUlATED
CCL IS 11.0 C 19.& f
RA09 SFC T[MP- 15.6 C 60.1 r. MIXING DEPTH USED FOR eeL. 50. HBAR
AVeRAGE RELATIVE i-iU11101TY rQ!~ SFC LVR IS .57
TOP or SFC lAVER IS 3706.9 1'1
HU c .2/RUP
NATURAL fREEZING LIMITS I -20.0 C TO -If 0.0 e
f10DIFlCO FREEZING LlMITSI -5.0 C TO -25.0 e

Ern C I [Hey
PRECIP CONO.
(peTl IPCl)
1t.8 76.8
16.1f 99.7
19.3 99.9
15.7 99.9
19.2 99.9
16.2 99.9
20.2 99.9
17.3 99.9
22.9 99.9
19.6 99.9
56.2 100.0
2.1.t~9 lOQ.Q

OVNAHI C
POTENT I At

5.08tKHJ

O.OOIK"'

D.OOIKH)

D_oorKHI

O_OOIK"'

."'9(K"1

STABILITY AND MOISTuRE ,'NAlYSIS
STABLE I HVERS I ON lEVELS MOIS1 LEVELS
HE IGHT PRESSURE T(CI HE IGHl PRESSURE RH TIC)
1691.7 8lfO.0 16.t) 5920 . 0 500.0 95.3 -II.
I1Bl.t..1 930.0 16.6 6075.2 1f90.0 9'4.7 -II.
0.0 0.0 0.1) 6233.0 'teo.o 9't.0 -12.
0.0 0.0 0.11 639't.7 It70.0 93.7 -13.
0.0 0.0 0.1) 6558. 0 1t60.0 93.6 -I'.
0.0 0.0 0.0 6723.2 "'!50 .0 93.6 -15.
0.0 O. D 0.0 6890.6 IotItO.O 93.5 -16.
0.0 O. D 0.0 7060.0 1f30.0 93.... -18.
0.0 O. D 0.0 7231. 7 '20.0 93.3 -19.
0.0 O. J 0.11 7-'05.6 ItIO .0 93.3 -20.
0.0 0.1) 0.11 7600.0 'too.o 93.2 -22.
0.0 O.'J 0.11 7785.7 390.0 91.8 -23.
0.0 0.1) 0.11 797'1.1 380.0 90.3 -2lt.
0.0 0.1) 0.11 9165.\ 370.0 88.8 -26.
0.0 0.1) 0.11 9358.9 360.0 87.2 -27.
0.0 0.1) 0.(1 8555.5 350.0 95.6 -29.
RAOe TOP 15 100.0 H9AR

Figure 3. - Sample output from the Great Plains
Cumulus Model (GPC~I).

plotting and analysis programs. This package will
create contour analyses and three-dimensional
drawings that will be very beneficial to the users.

A front-end computer will be installed sometime in
the fall of 1978. This will allow the Bureau Com-
puter System to handle 1,200 and 2,400 baud dial-up
terminals in an interactive mode.

The Bureau is also developing an objective
decision-tree forecast system. The data uSI~d to
develop these forecasts are being collected auto-
matically into a dynamic file for processinl~ at
the end of each field season. When completl~d,
these programs will be able to be run interactively'
by the meterologist, and print out on a tenlinal
the major parameters required to make the daily
weather forecast.

8. REFERENCES

Kahan, A. M., Skywater Users Guide, U.S. Bureau
of Reclamation, April 1975.

Hirsch, J., 1971: "Computer Modeling of Cumulus
Clouds During Project Cloud Catcher." Inst.
Atm. Sci. S.D. School of Mines. Report 71-7.
61 pp.

Matthews, D. and J. Henz, 1977: Dynamic Modifica-
tion Potential in the High Plains - A Theoretical
Climatology for 1975-1976. Preprint Volume:
Sixth Conference on Inadvertant and Planned
Weather Modification. Urbana, Illinois.