Readme.topo
-----------

The TARRAWARRA DATA SET
-----------------------

COLLECTED BY:
Dr Andrew Western and Dr Rodger Grayson
Centre for Environmental Applied Hydrology
Department of Civil and Environmental Engineering
The University of Melbourne
Parkville 3052 Australia

fax:
+61 3 9344 6215

email:
a.western@engineering.unimelb.edu.au
r.grayson@engineering.unimelb.edu.au


*******************     Copyright     **************************

    Copyright (c) 1995-1998 Centre for Environmental Applied 
Hydrology, The University of Melbourne.

Permission to use, copy and distribute this data and its 
documentation, for non-commercial purposes, is hereby granted 
without fee, provided that the above copyright notice appear in 
all copies, that both that copyright notice and this permission 
notice appear in supporting documentation, and that any 
publication resulting from the use of this data cites: A W Western 
and R B Grayson, "The Tarrawarra data set: Soil moisture patterns, 
soil characteristics and hydrological flux measurements", Water 
Resources Research, in review.

Authors are requested to forward 2 copies of any publication 
utilising this data set to the address above.

Any problems with interpreting the data or requests for further 
information should be addressed to Dr Andrew Western or Dr Rodger 
Grayson.

******************************************************************

Acknowledgments
---------------

The Tarrawarra catchment is owned by the Cistercian Monks 
(Tarrawarra) who have provided free access to their land and 
willing cooperation throughout the project.  Funding for this work 
was provided by: the Australian Research Council (project 
A39531077); the Cooperative Research Centre for Catchment 
Hydrology; Oesterreichische Nationalbank, Vienna (project 5309); 
the Department of Industry, Science and Technology, International 
Science and Technology Program; The University of Melbourne and 
The Ian Potter Foundation.  The European Space Agency and the 
National Aeronautical and Space Agency provided SAR data free of 
charge.  Assistance in the field and with data processing has been 
provided by Karen Moore.  Field assistance has also been provided 
by Jenny Barkley, Alison Dedman, Judy Dunai, Sarah Ewing, Brian 
Finlayson, Myriam Ghali, Tim Green, Veronique Gomendy, Tony 
Ladson, Lee Heng, Natasha Heron, Neela Janakiramanan, Loic 
Mangeot, Tom McMahon, Graham Moore, Joorst Overbeek, Michael 
Roberts, Kate Smolenska, Hugh Turral, Mariska te Vaarwerk, Jeff 
Walker, Fred Watson, Garry Willgoose, Mark Wood, and Rodger Young.  
Garry Willgoose, Tom McMahon, Günter Blöschl, David Goodrich, Hugh 
Turral, and Brian Finlayson have provided useful suggestions on 
the field data collection. Veronique Gomendy and Hugh Turral 
assisted with interpretation of the soil cores.  Graham Moore has 
provided help with instrumentation on the DCV.  Fred Watson 
provided advice on GIS and data management.

------------------------------------------------------------------

Topographic, site and digital elevation model data
--------------------------------------------------

This file contains information about three inter-related data sets 
that provide the basic terrain and feature data for Tarrawarra.

Topographic Survey
------------------

A topographic survey of Tarrawarra was conducted using total 
stations.  A set of control benchmarks was established about the 
catchment and used for all survey work.  All survey work was 
conducted within the Tarrawarra coordinate system.  Spot 
elevations were measured on a 10 by 10 m (approx) paced grid.  
Elevations were measure to +/- 0.05 m and plan position to +/- 
0.1m.  

Surveyed natural surface data: toposurv.dat.  
header:    contains site, date and unit information
data:      x y z 
units:     meters in Tarrawarra coordinates
delimiter: white space


Site locations
--------------

A series of files contain site locations.  They are all arranged 
in the same format (with white space field separation):

header:     what the sites are, grid, units
data:       x  y  site_identification
units:      meters in Tarrawarra coordinates
delimiter:  whitespace

Site files exist for the following:

neutron access tubes                 neutron.pos
piezometers                          piezo.pos
rain gauges                          rain.pos
weather station                      weather.pos
flume                                flume.pos

Digital Elevation Models
------------------------

Two digital elevation models (dem) have been developed for 
Tarrawarra.  Both are 5 m grid based dem's.  One is in the 
Tarrawarra coordinate system (tarrawar.dem) and the other is in 
Universal Transverse Mercator (zone 55) and Australian Height 
datum (tarrautm.dem).  Details of the conversion between these two 
coordinate systems are provided in Readme.1st.

Format:
The files contain a 6 line header with the boundaries of the dem 
and the number of rows and columns.  Then the elevations (in 
metres) are provided starting in the North western corner of the 
dem and proceeding row by row.  Note that the dem boundaries refer 
to the outer edges of the bounding cells while the elevations 
refer to the cell centres.  Thus the boundaries are 2.5 m outside 
the outer elevations.

Files
-----

archive: (unix) topodata/siteinfo.tar.Z; (DOS/windows) 
topodata/siteinfo.zip; and (Macintosh) topodata/siteinfo.sit.

ascii:
toposurv.dat
neutron.pos
piezo.pos
rain.pos
weather.pos
flume.pos
tarrawar.dem
tarrautm.dem