|WORLD METEOROLOGICAL ORGANIZATION||
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FIELD HYDROLOGY IN TROPICAL COUNTRIES - A PRACTICAL INTRODUCTION
1. Purpose and objectives
To provide a basic guide for field hydrologists working in tropical countries on the practical aspects of managing data collection.
This book is designed to be a practical guide -not a manual or a textbook- and is aimed at those who understand basic hydrological principles but who do not have much field experience.
The book is divided into two main sections addressing the issues of planning and management and data collection. In Section I an introduction of some important general points is followed by an illustrated reminder to select appropriate hydrology. An overview of field work discusses site visits by managers and what checks should be made; the importance of encouraging daily entries in station record books; maintaining office supplies needed by observers; the importance of cultivating a good relationship with local observers, for example, by showing a personal interest in their welfare and making sure that their wages are paid; and details to remember when installing new equipment. The paramount importance of the control and maintenance of transport is stressed. Safety issues are also discussed, including first aid, protection of water and food supplies on field trips, the dangers of rivers, deep water and boats, politically sensitive areas, dangers from wild animals, and the provision and maintenance of emergency radio communication.
Section II on data collection suggests how accurate records and continuity of data might be maintained for rainfall, streamflow and evaporation estimates. Points addressed include a brief overview of available instrumentation and techniques; factors to consider in method selection; the siting and regular checking of equipment; what sources of error to look out for, such as leaks and spiders in raingauges, and other problems that might be encountered, such as silting in pipes to stilling wells, and how to deal with them; how to handle and label recorded data properly; and the correct units to employ. The installation, operation and maintenance of a meteorological station are dealt with in the section on evaporation.
Three Appendices contain details of sources of further information: references and further reading; information available from the WMO and International Organization for Standardization; and measurement units, equations and conversion factors.
5. Operational requirements and restrictions
6. Form of presentation
Booklet of 108 pages.
7. Operational experience
The author has thirty years experience as a hydrologist, and worked in Africa, South America and India.
8. Originator and technical support
Institute of Hydrology, UK.
From the UK HOMS Office, Centre for Ecology and Hydrology, formerly the Institute of Hydrology, Crowmarsh Gifford, Wallingford, Oxfordshire OX10 8BB. Generally for sale, but single copies available free at the discretion of the UK HOMS Office.
10. Conditions on use
Subject to the usual laws of copyright with respect to reproduction and distribution.
|(First entered: MAR 99||
Last updated: MAR 99)