Results 101 to 110 of about 11,023 (187)

DroughtScape- Summer 2014 [PDF]

open access: yes, 2014
CONTENTS Director’s report...........................1 Outlook ........................................ 2 Drought & climate summary ........ 2 Drought impacts .........................4 International drought monitoring and planning .......................
Smith, Kelly
core   +1 more source

Approximation of ice phenology of Maine lakes using Aqua MODIS surface temperature data

open access: yesEcosphere
AbstractStudies of lake ice phenology have historically relied on limited in situ data. Relatively few observations exist for ice out and fewer still for ice in, both of which are necessary to determine the temporal extent of ice cover. Satellite data provide an opportunity to better document patterns of ice phenology across landscapes and relate them ...
Sophia K. Skoglund   +6 more
openaire   +2 more sources

Ice Thickness Assessment of Non-Freshwater Lakes in the Qinghai–Tibetan Plateau Based on Unmanned Aerial Vehicle-Borne Ice-Penetrating Radar: A Case Study of Qinghai Lake and Gahai Lake

open access: yesRemote Sensing
Ice thickness has a significant effect on the physical and biogeochemical processes of a lake, and it is an integral focus of research in the field of ice engineering.
Huian Jin   +6 more
doaj   +1 more source

Ice Phenology and Thickness in Small Arctic Lakes: Field Observations and Mechanistic Controls

open access: yesWater Resources Research
The Arctic is the fastest‐warming region globally. Lake ice is a sentinel indicator of Arctic change, with wide impacts on hydrological regimes, biodiversity, and ecosystem services.
Ludwig Strötz   +4 more
doaj   +1 more source

Earlier ice melt increases hypolimnetic oxygen despite regional warming in small Arctic lakes

open access: yesLimnology and Oceanography Letters
Although trends toward earlier ice‐out have been documented globally, the links between ice‐out timing and lake thermal and biogeochemical structure vary spatially.
Václava Hazuková   +4 more
doaj   +1 more source

Geographic Variation of Cirques on Iceland: Factors Influencing Cirque Morphology

open access: yes, 2017
Cirques are one of the most common glacial landforms in alpine settings. They also provide important paleoclimate information (e.g. Meierding 1984; Evans 2006). The purpose of this study is to fill in gaps in the climate record of Iceland by conducting a
Grube, Rachael E.   +3 more
core  

Signature of explosive volcanic eruptions in the sediments of a high-altitude Swiss lake [PDF]

open access: yes, 2018
The analysis of 125years of well-dated varved sediments in Lake Silvaplana, located at 1,791m a.s.l. in the Upper Engadine region of south-eastern Switzerland, reveals that 7 out of the 8 climatically relevant explosive volcanic eruptions between A.D ...
Blass, Alex   +3 more
core  

Multistage, multiband and sequential imagery to identify and quantify non-forest vegetation resources [PDF]

open access: yes
Earth Resources photographs from Apollo 6, 7, and 9 and photographs taken during Gemini 4, were used in the research along with high altitude and conventional aerial photography.
Driscoll, R. S., Francis, R. C.
core   +1 more source

Assessment of observed changes and responses in natural and managed systems [PDF]

open access: yes, 2007
Casassa, G   +9 more
core   +1 more source

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