Readme.nmm
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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.

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Neutron Moisture Meter data 
---------------------------

Soil moisture profiles are available for 20 sites at Tarrawarra.  
The file neutron.pos contains access tube coordinates.
The sites were selected to cover the range of topographic 
locations found in the catchment.  Access tubes were installed to 
the lesser of depth to bedrock or 1.5m.  Measurements were made at 
15, 30, 45, 60, 90, 120 and 150cm or to the bottom of the access 
tube, whichever was smaller.  

All moisture profiles were measured using a Campbell Pacific 
Nuclear 503DR Neutron Moisture Meter.  A counting period of 32 
seconds was used and standard counts performed on each occasion.  
The "count ratio" has been related to volumetric soil moisture by 
a calibration relationship based on 24 gravimetric samples 
collected from 6 Neutron access tubes over a variety of wetness 
conditions.  Individual neutron moisture measurements have an 
error standard deviation of +/- 2.5% volumetric soil moisture.


Data files
----------

The soil moisture profile data is arranged in 20 files, one for 
each site.  The files contain a header with the site 
identification, site coordinates, depth to bedrock and soil 
profile description.  Following the header, the data for each 
profile is formatted as follows (with one blank line between each 
profile):

date(dd/mm/yyyy)   time(hhmm, Australian eastern standard time)
depth(cm)        moisture(%V/V)
depth(cm)        moisture(%V/V)
.
.
depth(cm)        moisture(%V/V)

Naming:  Files are named tube_#.dat, where # is the site number

Files
-----

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

ascii:

topodata/neutron.pos
tube_1.dat
tube_2.dat
...
tube_20.dat