干旱区生态环境知识资源中心(Arid): Exploring the frozen frontier: unmanned aerial vehicles and multispectral sensors unveiling cryosphere dynamics in East Antarctica's Dronning Maud Land

Arid

DOI	10.1080/15481603.2024.2302739
	Exploring the frozen frontier: unmanned aerial vehicles and multispectral sensors unveiling cryosphere dynamics in East Antarctica's Dronning Maud Land
	Priya, Geetha M.; Venkatesh, Krishna
通讯作者	Priya, MG
来源期刊	GISCIENCE & REMOTE SENSING
ISSN	1548-1603
EISSN	1943-7226
出版年	2024
卷号	61 期号:1
英文摘要	In this study, we investigated specific components and intra-seasonal dynamic processes that play pivotal roles in the East Antarctica's central Dronning Maud Land (cDML) region. The present study focuses on harnessing the potential of a multispectral sensor-based Unmanned Aerial Vehicle (UAV) for cryosphere studies over the polar ice sheet in cDML (Schirmacher Oasis) region of East Antarctica, conducted as part of the 42nd and 43rd Indian Scientific Expedition to Antarctica (ISEA), under the aegis of National Centre for Polar and Ocean Research (NCPOR), Ministry of Earth Sciences, Government of India, during austral summer period from 2022 to 2023. The surveyed area (similar to 100 acres) encompasses a segment of the ice sheet frontal edge outer margin, situated near the Maitri Indian research base at Schirmacheroasen, and includes a melt pond/supraglacial lake. The results indicate that the ice sheet frontal edge segment experienced a decrease in elevation of 0.25 meters with a total mass reduction of 13.6 kilotons during one-week period. The supraglacial lake accumulated meltwater with an average depth ranging from 0.25 to 1.6 meters, covering an area spanning from 9.1 x 10(3) square meters to 24.7 x 10(3) square meters. The ultra-high resolution multispectral UAV data also revealed dynamic changes in various cryo-facies classes, including water bodies/meltwater, frozen meltwater, dry and wet snow, debris/bare ice, and bedrock during the study period over the study area. This study represents a pioneering effort in assessing the region near the Maitri research base in both spatial and temporal scales. It also marks the first application of UAV surveying techniques with the integration of in-situ data from the Pressure Sensor Assembly (PSA) to examine and understand its complex intra-seasonal dynamics and characteristics. The research team is the first Indian group to employ UAVs for scientific research in the Antarctic region, which is a notable advancement in Indian scientific exploration and contributes to the expanding knowledge of the Antarctic region.
英文关键词	UAV melt pond glacial Lake pressure sensor East Antarctica
类型	Article
语种	英语
开放获取类型	gold
收录类别	SCI-E
WOS记录号	WOS:001140959300001
WOS关键词	ICE-SHELF ; THICKNESS ; EVOLUTION ; NIVLISEN ; OCEAN ; OASIS
WOS类目	Geography, Physical ; Remote Sensing
WOS研究方向	Physical Geography ; Remote Sensing
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/403966
推荐引用方式 GB/T 7714	Priya, Geetha M.,Venkatesh, Krishna. Exploring the frozen frontier: unmanned aerial vehicles and multispectral sensors unveiling cryosphere dynamics in East Antarctica's Dronning Maud Land[J],2024,61(1).
APA	Priya, Geetha M.,&Venkatesh, Krishna.(2024).Exploring the frozen frontier: unmanned aerial vehicles and multispectral sensors unveiling cryosphere dynamics in East Antarctica's Dronning Maud Land.GISCIENCE & REMOTE SENSING,61(1).
MLA	Priya, Geetha M.,et al."Exploring the frozen frontier: unmanned aerial vehicles and multispectral sensors unveiling cryosphere dynamics in East Antarctica's Dronning Maud Land".GISCIENCE & REMOTE SENSING 61.1(2024).