A Guide to Using the Revised Generalised Tropical Storm Method

GTSMR cd cover picture

Bibliographic Reference:

Bureau of Meteorology. (2003) Guidebook of the Estimation of Probable Maximum Precipitation: Generalised Tropical Storm Method, Included on compact disc 'Guide to the Estimation of Probable Maximum Precipitation: Generalised Tropical Storm Method', Hydrometeorological Advisory Service, Bureau of Meteorology, March 2004.The current version, which incorporates some corrections, was issued in September 2005.

This compact disc gives a guide to using the Generalised Tropical Storm Method [GTSMR] of estimating Probable Maximum Precipitation in parts of Australia where events of tropical origin are likely to produce the greatest rainfalls. The method was revised by the Bureau of Meteorology in cooperation with, and partially funded by, state water authorities in NSW, WA and Queensland.

The CD contains a guidebook and all necessary files for the user to apply this revised method to a catchment. Worked examples, a description of the development of the method [HRS8] and a catalogue of the storms used [HRS9] are also provided.

The main target users of the CD are envisaged to be hydrologists and engineers involved in the design of large dams and the assessment of the hydrologic risk of existing large dams in the GTSMR region of Australia.



Hydrometeorological Advisory Service,
Bureau of Meteorology,
GPO Box 1289,
Australia 3001
Standard charges apply.

Changes and Corrections

Despite careful preparation, this guide may contain typographical or other errors that affect the use of the procedures and/or the numerical values obtained. Users are encouraged to report suspected errors to the Hydrometeorological Advisory Service of the Bureau of Meteorology by email on webhas@BoM.GOV.AU.

Once confirmed, errors will be noted and, where circumstances allow, corrected in these errata.

Date Page No. / File Name Problem Correction
26-05-2004 File: pmp_zones/zones_all The transition zones do not display when this shape is brought into a GIS. Make the shape transparent
e.g. Properties → Symbology → 'hollow'.
26-05-2004 Guidebook:
pages 21, 22, 23, 24
In the worked example for Test Catchment B, obsolete winter moisture data was used. If working through this example using the GTSMR_CD, you ought get the following values;
Making the final Winter PMP values;
24 h … 270 mm
36 h … 340 mm
48 h … 360 mm
72 h … 390 mm
96 h … 400 mm
01-09-2005     The above corrections have been
incorporated into the 2005 reprint of the

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