2009 water@scientist.com
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ABSTRACT
Simple graphical methods for organization, debugging and analysis of water quality data are
developed. An example of an application of these methods to observations made on Licking Hole
Creek Catchment, a mountain forest watershed, burned by an intense conflagration, shows the
sensitivity of the technique. It is shown that some traps are in store for users of standard methods
of analysis.
The technique could be applied:
1. To other conflagration affected watersheds. The objective is to compare the data before and after
conflagration.
2. To other catchments with major changes in land-use, such as urbanized catchments.
3. To the analysis and organization of the data of the hydrochemical archive for all stations, using
the developed 3-D technique. The objective in this case would be the creation of indicator diagrams
which could be used by analysts in any laboratory as "rating curves" and hence ascertain quickly
any changes in water quality.
TABLE 1
Figure 1a Concentration - discharge relationships. All graphs are black and white - YAK!
Figure 1b Concentration - discharge relationships.
Figure 1c Concentration - discharge relationships.
Figure 2 Mass-flow as function of discharge.
Figure 3 Topographic map. Watershed N410 776 : area 20.6 km2; highest
point: Mt. Kelly 1.8 km above sea level; lowest point - gauging station - 1.3
km; O PLUVIOGRAPH, ---- the survey of 24/9/1985.
Figure 4 The ways of water.
Figure 5 Cumulative rainfall (mm), runoff (mm/day), discharge (m3/s), and
cumulative evaporation (mm) for the Licking Hole Creek Watershed.
Evaporation is measured by A-pan at the station N701 (10 km East of the
gauging station. For 1/5/1983 - 1/5/1984 rainfall- runoff-evaporation = 1.5 m -
0.8 m - 1.0 m = -0.3 m. The discrepancy is mostly due to the quality of
precipitation measurements, especially in snowy winter months.
Figure 6 Runoff (m3/s) as a function of the amount of water v (day m3/s),
drained from the watershed after 1 March 1984 flood.
7a
7b
7c
7d
7e
7f
7g
7h
7j
7i
7k
7l
7m
7n
7o
7p
7r
7s
7t
7u
Figure 8 Duirnal runoff variations: 19-22 November 1983.
Figure 9 Total oxidized nitrogen as a two set record.
Figure 10 Kieldahl Nitrogen as function of discharge and total phosphorus.
2009 water@scientist.com
ORG.NITROGEN=TKN-AMMONIA;
PARTICULATE PHOSPHORUS =
TOTAL PHOS. - ORTHO PHOSPHORUS.
2. Before Next Conflagration: Forecast and Prevention
G.P.O. Box 863
Canberra City
ACT 2601
AUSTRALIA
ph.: +61 2 62497315(24 hours)
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