Topographic survey on the surface of glacier Austre Lovénbreen and Pedersenbreen in Svalbard based on GPS method

• Main Authors: Songtao, Ai, Zemin, Wang, Dongchen, E, Xiaoping, Pang
• Format: Article in Journal/Newspaper
• Language: unknown
• Subjects: Cryosphere; Terrestrial; Arctic; Pedersenbreen; Svalbard; glacier; Polar Research
• Online Access: http://library.arcticportal.org/1687/; http://journal.polar.gov.cn/EN/article/downloadArticleFile.do?attachType=PDF&id=10124

Since 2005, the Chinese Arctic National Research Expedition (CHINARE) has carried out highly precise GPS Measurements on two glaciers, Austre Lovénbreen and Pedersenbreen near the Chinese Arctic Yellow River station, Acquiring precise locations of observation poles on the two glaciers. In April 2009, CHINARE acquired high density GPS point positioning data on the two glaciers with a Novatel SMART-V1 GPS instrument, which is an integrated Single frequency GPS receiver. This paper introduced the field work of the topographic survey ingusing the SMART-V1 GPS, analyzed the possibility of using single frequency GPS point positioning data for topographic surveying on glaciers, and acquired the digital elevation model of the glaciers’surface. Contour lines were then produced in Arcmapand the contour data exported into Corel Draw formapping. The precision of the adjusted GPS point positioning data reach 0.78m apart from altitude.This is less than the altitude change in seasonal wave and the year round melting. As a widely used componentin the pulse EKKOGPR, theSMART-V1GPS receiver is capable of Topographic surveying on glaciers, and the data processing method in this paper is of use to similar studies. Full text in Chinese only.