Two tools have been used to investigate flow connectivity at the
study sites,
TopManage and TOPCAT.
TopManage is a high resolution digital terrain analysis (DTA) tool designed
to help farmers and land managers visualise the effect of
different management practices on hydrology. Used in conjunction
with a Geographical Information System (GIS) it enables the user
to assess what the effect would be of adding to, or removing
from, the land topographic features. Starting from a
digital terrain map of a particular field or area of farmed
land, usually derived from Geographical Positioning System (GPS)
measurement, maps can be input to the GIS, topographic features
added, and augmented terrain maps analysed using TopManage.
High resolution maps have been made of Field A and Field B
TOPCAT is a simple hydrological model that provides time series modelling of flow and of nitrate, phosphates and phosphorus.
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