Finding your contours, where to dig swales and other important stuff
On Saturday, July 30th Rolf Cambridge (who is a surveyor) is going to do more than teach the Dumpy level use.
This is the course guide
· Use of the dumpy level; check for adjustment; how to book the readings—back sight, intermediate sight and fore sight; reduction of observations
· Australian Height Datum (AHD) and how to search for State Survey Marks (SSM's) and field inspection of one or two, so that they can be recognised.
· Plotting of the levels that are observed, perhaps calculating contours;
· Marking a contour on the ground.
· If we have time to spare—he has a 2" soil auger that could be used to investigate a soil profile and determining pH.
He is asking that you bring:
· A clipboard and about 4 sheets of A4 paper, pencil, small ruler and rubber
· If you have an 8 m measuring tape that might be useful (I have a couple here)
As usual bring something simple but delicious for afternoon tea.
Tea (of various sorts) and coffee provided.
PSN has, or will have a dumpy- level which you will be able to borrow and now will soon be able to use.
We will be outside most of the time, so comfortable shoes and warm clothes, hats etc would be good.
It will be at my place at Lindfield - address will be emailed to you on registration.
Hope to see you there,
Di Evans. 94161896 firstname.lastname@example.org
Diana Watson 94162929