Results 11 to 20 of about 11,027 (173)

Remote Sensing of Lake Ice Phenology across a Range of Lakes Sizes, ME, USA [PDF]

Remote Sensing, 2019
Remote sensing of ice phenology for small lakes is hindered by a lack of satellite observations with both high temporal and spatial resolutions. By merging multi-source satellite data over individual lakes, we present a new algorithm that successfully estimates ice freeze and thaw timing for lakes with surface areas as small as 0.13 km2 and obtains ...
Shuai Zhang 0023, Tamlin M. Pavelsky
openaire   +4 more sources

Sedimentary Metagenomics Reveal Avian Community Transitions From the Last Glacial Maximum to the Holocene. [PDF]

Ecol Evol
We used sedimentary ancient DNA shotgun metagenomics to reconstruct past bird communities in northern high‐latitude environments. By using long time series and data collected across a large environmental gradient, we contributed in a unique and explorative way to the understanding of palaeoecological dynamics between birds and their habitat on the ...
Sander MM, Stoof-Leichsenring KR, Liu S, Shen W, Lisovski S, Herzschuh U.   +5 more
europepmc   +2 more sources

An automated method to monitor lake ice phenology [PDF]

Limnology and Oceanography: Methods, 2011
A simple method to automatically measure the date of ice‐on, the date of ice‐off, and the duration of lake ice cover is described. The presence of ice cover is detected by recording water temperature just below the ice/water interface and just above the lake bottom using moored temperature sensors.
Pierson, D. C., Weyhenmeyer, G. A., Arvola, Lauri, Benson, B., Blenckner, T., Kratz, T., Livingstone, D. M., Markensten, H., Marzec, G., Pettersson, K., Weathers, K.   +10 more
openaire   +1 more source

Climate change at the ecosystem scale: a 50-year record in New Hampshire [PDF]

, 2012
Observing the full range of climate change impacts at the local scale is difficult. Predicted rates of change are often small relative to interannual variability, and few locations have sufficiently comprehensive long-term records of environmental ...
Bailey, Amey S., Hamburg, Steven P., Richardson, Andrew D., Vadeboncoeur, Matthew A   +3 more
core   +2 more sources

Plant water resource partitioning and isotopic fractionation during transpiration in a seasonally dry tropical climate [PDF]

, 2017
Lake Chala (3 degrees 19' S, 37 degrees 42' E) is a steep-sided crater lake situated in equatorial East Africa, a tropical semiarid area with a bimodal rainfall pattern. Plants in this region are exposed to a prolonged dry season, and we investigated if (
Bodé, Samuel, Boeckx, Pascal, De Wispelaere, Lien, Hemp, Andreas, Hervé Fernández, Pedro Alejandro, Verschuren, Dirk   +5 more
core   +3 more sources

A longer vernal window: The role of winter coldness and snowpack in driving spring thresholds and lags [PDF]

, 2017
Climate change is altering the timing and duration of the vernal window, a period that marks the end of winter and the start of the growing season when rapid transitions in ecosystem energy, water, nutrient, and carbon dynamics take place.
Adolph, Alden, Albert, Mary, Burakowski, Elizabeth A., Burchsted, Denise, Contosta, Alexandra R., Dibb, Jack E., Green, Mark, Guerra, David, Martin, Mary E., McDowell, William H., Routhier, Michael R., Wake, Cameron P., Whitaker, Rachel, Wollheim, Wilfred M.   +13 more
core   +2 more sources

Effects of Changes in Arctic Lake and River Ice [PDF]

, 2011
Climatic changes to freshwater ice in the Arctic are projected to produce a variety of effects on hydrologic, ecological, and socio-economic systems.
McNamara, James P.
core   +1 more source

Observational evidence for the convective transport of dust over the central United States [PDF]

, 2016
Bulk aerosol composition and aerosol size distributions measured aboard the DC-8 aircraft during the Deep Convective Clouds and Chemistry Experiment mission in May/June 2012 were used to investigate the transport of mineral dust through nine storms ...
Anderson, B. E., Barth, M. C., Beyersdorf, A. J., Blake, D. R., Chen, G., Corr, C. A., Crosbie, E., Dibb, Jack E., Lawson, R. P., Moore, R. H., Scheuer, Eric M., Schroeder, J. R., Shook, M., Thornhill, K. L., Winstead, E., Ziemba, L. D.   +15 more
core   +3 more sources

Ice Phenology in Eurasian Lakes over Spatial Location and Altitude

Water, 2022
Eurasian freezing lakes cover an almost 180° wide longitude sector between the latitudes 30° and 75° N, and their altitudes range from below the sea surface level up to 5 km elevation. Ice phenology varies widely in this region. However, these variations and their influence factors have been little studied.
Matti Leppäranta, Lijuan Wen
openaire   +1 more source

Investigating Changes in Chlorophyll a and Other Water Chemistry Variables in Response to Global Environmental Change [PDF]

, 2020
Changes in water quality are influenced by climate change and other anthropogenic stressors. We 1) assessed changes in water quality in lakes in the Laurentian Great Lakes region, and 2) compiled water quality data for lakes across the world to assess ...
Mahdiyan, Octavia
core