Presentation is loading. Please wait.

Presentation is loading. Please wait.

Colleen McCue, Lindsay Clovis, Kayla Canfield, Jess Mehlfelt, Kevin Moran.

Similar presentations


Presentation on theme: "Colleen McCue, Lindsay Clovis, Kayla Canfield, Jess Mehlfelt, Kevin Moran."— Presentation transcript:

1 Colleen McCue, Lindsay Clovis, Kayla Canfield, Jess Mehlfelt, Kevin Moran

2

3  Backpack gets a GPS measurement from the satellite. Bounces signals through atmosphere which may change the accuracy.  Base station at known location tells the back pack the difference between satellite’s signal and it’s actual location.  Backpack in radio contact with the base station.

4  GPS -- RTK-GPS technology Measures height from given sea levels Data from base station communicated by UHF radio to roving unit Gives horizontal and vertical resolution GPS takes into account surveyors height  Methods Put on GPS backpack Enter height to calibrate Begin at end of one transect, hit START button, slowly walk transect, hit STOP button at end Repeat for transects 1 thru 10

5  Import raw data from GPS into GIS  Download White Point Swash images and files from SCDNR website (images: pictures of area, files: lat. long. coordinates)  Change the shape file (ours) to state plane feet to coordinate with SCDNR data  Change symbology Change points of elevation colors Classify elevation increments (more, less, different numbers)  Add scale and compass rose

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21  White Point Swash surveying  Elevation data of 10 transects and 2 channels  Elevation data (“z”) imported into Excel Transects 1-10  Raw x,y,z data imported in GIS Colors assigned according to depth  Data overlaid onto a SCDNR aerial photo Photo had GPS coordinates (align w/ data)


Download ppt "Colleen McCue, Lindsay Clovis, Kayla Canfield, Jess Mehlfelt, Kevin Moran."

Similar presentations


Ads by Google