Results 61 to 70 of about 7,581 (228)
NATURAL FACTORS OF SMALL THERMOKARST LAKES DYNAMICS INSIDE THE BOVANENKOVO GAS FIELD
This paper is dedicated to studying the causes of small thermokarst lakes number change in the territory of the Bovanenkovo gas field (Western Yamal) happened for the last 30 years.
G. S. Sannikov
doaj +1 more source
Methane emissions from northern lakes under climate change: a review
Northern lakes are important sources of CH4 in the atmosphere under the background of permafrost thaw and winter warming. We synthesize studies on thermokarst lakes, including various carbon sources for CH4 emission and the influence of thermokarst ...
Lingling Li, Bin Xue
doaj +1 more source
Thermokarst lakes are widespread in Arctic lowlands. Under a warming climate, landscapes with highly ice-rich Yedoma Ice Complex (IC) deposits are particularly vulnerable, and thermokarst lake area dynamics serve as an indicator for their response to ...
Alexandra Veremeeva +4 more
doaj +1 more source
Gridmapping the northern plains of Mars: Geomorphological, Radar and Water-Equivalent Hydrogen results from Arcadia Plantia [PDF]
A project of mapping ice-related landforms was undertaken to understand the role of sub-surface ice in the northern plains. This work is the first continuous regional mapping from CTX (“ConTeXt Camera”, 6 m/pixel; Malin et al., 2007) imagery in Arcadia ...
Balme, Matthew R. +20 more
core +3 more sources
Thermokarst-lake methanogenesis along a complete talik profile [PDF]
Abstract. Thermokarst (thaw) lakes emit methane (CH4) to the atmosphere formed from thawed permafrost organic matter (OM), but the relative magnitude of CH4 production in surface lake sediments vs. deeper thawed permafrost horizons is not well understood.
J. K. Heslop +6 more
openaire +4 more sources
Effects of Surface Characteristics on the Existence of Isolated Permafrost in Northeastern Mongolia
ABSTRACT Isolated patches of permafrost, where ground thermal changes are affected by ecosystem factors such as vegetation cover rather than climate, may be vulnerable to environmental disturbances in semiarid regions. However, the impacts of ecosystem factors remain underevaluated in Mongolia.
Gansukh Yadamsuren +9 more
wiley +1 more source
Recent Arctic tundra fire initiates widespread thermokarst development [PDF]
AbstractFire-induced permafrost degradation is well documented in boreal forests, but the role of fires in initiating thermokarst development in Arctic tundra is less well understood. Here we show that Arctic tundra fires may induce widespread thaw subsidence of permafrost terrain in the first seven years following the disturbance.
Benjamin M. Jones +6 more
openaire +3 more sources
ABSTRACT The Nacho Nyäk Tagé (Stewart River) watershed in central Yukon (Canada) is characterized by discontinuous permafrost that is locally highly sensitive to thaw. This study aims to map the spatial distribution of permafrost terrain disturbances (PTDs) in the watershed and model thaw susceptibility to support community‐led land‐use planning by the
Frederic Brieger +2 more
wiley +1 more source
Currently, palsa mires in the southern limit of circumpolar permafrost zone are characterized by an increased intensity of thermokarst processes. In the south of Nature Park Numto the cyclic character of frozen mound formation was replaced by their ...
E.A. Shishkonankova +3 more
doaj +1 more source
Decadal-scale hotspot methane ebullition within lakes following abrupt permafrost thaw
Thermokarst lakes accelerate deep permafrost thaw and the mobilization of previously frozen soil organic carbon. This leads to microbial decomposition and large releases of carbon dioxide (CO _2 ) and methane (CH _4 ) that enhance climate warming ...
K M Walter Anthony +18 more
doaj +1 more source

