Results 141 to 150 of about 562,892 (309)
Carbon-14 Plant Evidence of mid-Holocene Quelccaya Ice Cap Margin Fluctuations [PDF]
, 2017 The North Lake Lobe of the Quelccaya Ice Cap in southern Peru represents a wholly unique location for reconstructing paleoclimate conditions. At this location, plant samples were preserved in-situ beneath the advancing glacial ice, and since 2004 have ...
Stahl, Henry
core
Limnology and Oceanography: Methods, EarlyView.Abstract Cyanobacterial and other algal blooms are an environmental concern in waterbodies worldwide. While these blooms are a nuisance for recreational activities, they can also be harmful to human and wildlife health when the algae produce and release toxins.
Natalie C. Hall +7 more
wiley +1 more source
Geomorphic processes on the North Slope of Alaska [PDF]
Three physiographic provinces comprise the North Slope of Alaska: the Arctic Mountains, the Arctic Foothills and the Arctic Coastal Plain Provinces. The features and processes in the Arctic Coastal Plain, a zone of continuous permafrost, are stressed in
Hall, D. K.
core +1 more source
Limnology and Oceanography: Methods, EarlyView.Abstract Metabolism is a key property of lake ecosystem functioning, but logistical challenges make it difficult to estimate across remote regions. The steady‐state dissolved oxygen (DO) stable isotope method (18O method) estimates metabolism from discrete water samples and thus enables large‐scale surveys.
Fredrik Alriksson +6 more
wiley +1 more source
Refining techniques for high‐frequency monitoring of chlorophyll a fluorescence in estuarine systems
Limnology and Oceanography: Methods, EarlyView.Abstract Concentrations of the photosynthetic pigment chlorophyll a are commonly used as a proxy for phytoplankton biomass in aquatic systems. Traditional methods for extracting chlorophyll a in discrete samples limit measurement frequency, while in situ sensor technology provides high frequency chlorophyll a fluorescence measurements at a more ...
Nicole Dix +10 more
wiley +1 more source
Movement Disorders, EarlyView.Abstract Deep brain stimulation (DBS) effectively treats motor symptoms in movement disorders but often compromises speech through incompletely defined mechanisms. We conducted a PROSPERO‐registered systematic review and meta‐analysis of publications through August 2024 (CRD42024527738).
Elina Tripoliti +15 more
wiley +1 more source
Comparison of remote sensors for soil moisture and other hydrologic studies [PDF]
Progress in lake temperature and soil moisture remote sensing during 1971. The use of satellite data and imagery for improved flood and low flow forecasts, improved water level and ice reports for the Great Lakes, and better and faster coastal zone storm
Wiesnet, D. R.
core +1 more source
Lectotypifications and taxonomic changes in the holoparasitic Orobanchaceae
Nordic Journal of Botany, EarlyView.Based on further extensive studies of specimens in various herbaria, lectotypes are designated for many taxa of holoparasitic Orobanchaceae. In particular, 47 names in the genera Boschniakia (incl. Xylanche), Cistanche, Orobanche, Phelipanche and Phelypaea are lectotypified.
Holger Uhlich +5 more
wiley +1 more source
Estimating Ice Cover on the Great Lakes Using Seismic Ambient Noise
Geophysical Research LettersLake ice impacts seismic noise on nearby seismometers, and therefore seismic observations can be used to monitor ice changes. However, the transfer function describing how lake‐microseism noise covaries with ice cover has not been quantified.
Joshua B. Russell +1 more
doaj +1 more source
Nordic Journal of Botany, EarlyView.Scabiosa trenta Hacq. was first described in 1782 by Balthasar Hacquet, with its specific epithet referring to the Trenta Valley in Slovenia. Since then, S. trenta has been the focus of numerous mountaineering and botanical expeditions, particularly by the alpinist Julius Kugy during the Golden Age of Alpinism, a period in the second half of 19th ...
Valentina Boscariol +5 more
wiley +1 more source