干旱区生态环境知识资源中心(Arid): Active rock glaciers of the contiguous United States: geographic information system inventory and spatial distribution patterns

Arid

DOI	10.5194/essd-13-3979-2021
	Active rock glaciers of the contiguous United States: geographic information system inventory and spatial distribution patterns
	Johnson, Gunnar; Chang, Heejun; Fountain, Andrew
通讯作者	Johnson, G (corresponding author), Portland State Univ, Environm Sci Dept, Portland, OR 97201 USA.
来源期刊	EARTH SYSTEM SCIENCE DATA
ISSN	1866-3508
EISSN	1866-3516
出版年	2021
卷号	13 期号:8 页码:3979-3994
英文摘要	In this study we present the Portland State University Active Rock Glacier Inventory (n = 10 332) for the contiguous United States, derived from the manual classification of remote sensing imagery (Johnson, 2020; https://doi.org/10.1594/PANGAEA.918585). Individually, these active rock glaciers are found across widely disparate montane environments, but their overall distribution unambiguously favors relatively high, arid mountain ranges with sparse vegetation. While at least one active rock glacier is identified in each of the 11 westernmost states, nearly 88% are found in just five states: Colorado (n = 3889), Montana (n = 1813), Idaho (n = 1689), Wyoming (n = 839), and Utah (n = 834). Mean active rock glacier area is estimated at 0.10 km(2), with cumulative active rock glacier area totaling 1004.05 km(2). Active rock glaciers are assigned to a three-tier classification system based on area thresholds and surface characteristics known to correlate with downslope movement. Class 1 features (n = 7042, average area D 0.12 km(2)) appear to be highly active, Class 2 features (n = 2415, average area D 0.05 km(2)) appear to be intermediately active, and Class 3 features (n = 875, average area D 0.04 km(2)) appear to be minimally active. This geospatial inventory will allow past active rock glacier research findings to be spatially extrapolated, help facilitate further active rock glacier research by identifying field study sites, and serve as a valuable training set for the development of automated rock glacier identification and classification methods applicable to other large regional studies.
类型	Article ; Data Paper
语种	英语
开放获取类型	Green Submitted, gold
收录类别	SCI-E
WOS记录号	WOS:000686632100001
WOS关键词	DEBRIS-COVERED GLACIERS ; PERMAFROST DISTRIBUTION ; SIERRA-NEVADA ; FRONT RANGE ; DRY ANDES ; ALPS ; REGION ; ARGENTINA ; DYNAMICS ; MASSIF
WOS类目	Geosciences, Multidisciplinary ; Meteorology & Atmospheric Sciences
WOS研究方向	Geology ; Meteorology & Atmospheric Sciences
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/368069
作者单位	[Johnson, Gunnar] Portland State Univ, Environm Sci Dept, Portland, OR 97201 USA; [Chang, Heejun] Portland State Univ, Geog Dept, Portland, OR 97201 USA; [Fountain, Andrew] Portland State Univ, Geol Dept, Portland, OR 97201 USA
推荐引用方式 GB/T 7714	Johnson, Gunnar,Chang, Heejun,Fountain, Andrew. Active rock glaciers of the contiguous United States: geographic information system inventory and spatial distribution patterns[J],2021,13(8):3979-3994.
APA	Johnson, Gunnar,Chang, Heejun,&Fountain, Andrew.(2021).Active rock glaciers of the contiguous United States: geographic information system inventory and spatial distribution patterns.EARTH SYSTEM SCIENCE DATA,13(8),3979-3994.
MLA	Johnson, Gunnar,et al."Active rock glaciers of the contiguous United States: geographic information system inventory and spatial distribution patterns".EARTH SYSTEM SCIENCE DATA 13.8(2021):3979-3994.