Avadlek Spit is one of three gravel spits on Qikiqtaruk, which are all remnants of the coast before the island was separated from the mainland [1]. Some of the earliest evidence of human occupation, known from two excavated Inuvialuit houses, are located on Avadlek Spit. These are now under threat from coastal erosion which is being monitored through a multi-year project with drone photogrammetry.
Region:
Yukon
Field Documentation:
June 27, 2022
Field Documentation Type:
Photogrammetry
Historic Period:
1500CE
Latitude:
69.552687
Longitude:
-139.315313
Threat Level
In this gallery images by Murielle Nagy have been sourced from the Inuvialuit Digital Library. The rest of the images have been captured by the Capture2Preserv Team.
The raw data files for this project are available for download from the archive repository. There are two data sets created from the UAV photogrammetry. The point cloud data is in .las file format. The orthomosaic image are in World Tiff file format (.tiff, .wtf, .prj). Please download the metadata template to access metadata associated with each file. All data is published under the Attribution-Non-Commercial Creatives Common License CC BY-NC 4.0 and we would ask that you acknowledge this repository in any research that results from the use of these data sets. The point cloud data can be viewed and manipulated in CloudCompare an opensource software.
Avadlek Spit was captured using a Sensefly Ebee Geo Fixed Wing Drone. A series of targets were first established at various locations on the spit. A pre-planned mission to capture areas of the spit that contain cultural features was then flown using Sensefly’s eMotion software. The data was then processed using Pix4D mapper. The resulting photo orthomosaic and 3D point cloud of the spit will serve as baseline information for a planned multi-year UAV monitoring program. Additional flights in future years will be compared to this baseline map to identify and track changes to Avadlek Spit and its many heritage resources.
Photogrammetry Data
Grab the Slider With Your Mouse and Move it Left and Right to Compare Images.
Aerial Photo 1970 and UAV Data 2022
This slider is an historical aerial photography from 1970 (on the left), from the GeoYukon digital map library. The read more link below navigates to the original aerial photograph at the GeoYukon digital map library. The 2022 imagery (on the right) is from the Capture2Preserv UAV photogrammetry.
