Instruction manual

6. Running the ANALYSIS software ... (still under review)

This section describes the software used to analyze the tz data collected by the data

loggers. The analysis software is located in one of the four sub-directories on the disk

provided with the installation.

6.1. Files in A:\FORT

HPV-2000.FOR

HPV-2000.EXE

HPSAMPLE.DAT

HPHEADER.DAT

This subdirectory contains the FORTRAN programs required to analyze the heat-pulse

data (HPV-2000.FOR and HPV-2000). This program has been compiled using Digital-

Visual FORTRAN Version 5.1, and should run on any PC under Windows 3.1 or higher.

The program HPV-2000.EXE can be copied to any sub-directory on a laptop or a PC. But

in order to run HPV-2000, the program and the data (e.g. hpsample.dat) should reside in

the same directory.

6.2. Setting up the input file

The file HPHEADER.DAT is an example of the first few lines which must be at the top

of each data file. Because HPV-2000 uses a FORMATTED-read of the input data, it is

important to include a header-file at the top of the

data, in exactly the same format as

shown below. The header-file sets up the independent parameters involved in the sapflow

calculations, e.g. sapwood radius, heartwood radius, the volume fractions of wood and

water, etc. If you are familiar with FORTRAN then you can examine the source code

(HPV-2000.FOR) to find the formatted read statement.

The process to set up the input data is as follows:

Step - 1.

Each data file should have the following 10+2

lines at the top of the data files (see e.g.

HPHEADER.DAT as supplied on disk), where

is the number of probes being read. The

example below is for

=3 sets of probes and

nsensors=4

is the no. of sensors in each

probe.

nprobes: 3

nsensors: 4 4 4

wound_width: 2.40 2.40 2.40

Swanson fac: 1

v-frac wood: 0.36

v-frac wat : 0.54

sapwood_rad: 6.21 6.00 6.00

hrtwood_rad: 0.00 0.00