Results 191 to 200 of about 771,839 (291)

Characterization of recharge components for delineation of a high-alpine rock glacier spring catchment, Ötztal Alps (northern Italy). [PDF]

Hydrogeol J
Bertolotti G, Vremec M, Seelig S, Krainer K, Wagner T, Fischer A, Winkler G.   +6 more
europepmc   +1 more source

A simplified two‐station approach for modeling metabolism in dam tailwaters subject to diel flow variation

Limnology and Oceanography: Methods, EarlyView.
Abstract Tailwaters are ubiquitous and highly managed ecosystems whose food webs often rely disproportionately on autochthonous energy. In situ continuous dissolved oxygen data are increasingly being used to estimate gross primary productivity and ecosystem respiration in rivers, but this approach is complicated in tailwaters, where upriver ...
Ian W. Bishop, Bridget R. Deemer, Theodore A. Kennedy, Robert A. Payn, Robert O. Hall Jr., Charles B. Yackulic   +5 more
wiley   +1 more source

The evolutionary history of the field vole species complex revealed by modern and ancient genomes. [PDF]

Genome Biol
Baca M, Bujalska B, Popović D, Golubiński M, Alves PC, Bard E, Berto C, Cuenca-Bescós G, Dalén L, Fewlass H, Fadeeva T, Herman J, Horáček I, Krajcarz M, Law M, Lemanik A, López-García JM, Luzi E, Murelaga X, Mahmoudi A, Peresani M, Parfitt S, Pauperio J, Pavlova SV, Pazonyi P, Rodríguez IR, Searle JB, Stojak J, Strukova T, Wójcik JM, Nadachowski A.   +30 more
europepmc   +1 more source

Biogeography and diversification patterns in the Irano‐Turanian biodiversity hotspots inferred from a molecular phylogeny of the subendemic Iris subgenus Scorpiris (Iridaceae)

Nordic Journal of Botany, EarlyView.
The Irano‐Turanian Floristic Region harbors a rich flora, but our understanding of the development of this diversity is limited by a lack of data on phylogenetic relationships and biogeographic patterns of endemic and more widespread plants. Hypotheses of in situ diversification versus allopatric diversification were tested using Iris subgen. Scorpiris,
Mona Salimbahrami, Hojjatollah Saeidi, Ali Bagheri, Carol A. Wilson, Gerald M. Schneeweiss   +4 more
wiley   +1 more source

Snow avalanche susceptibility, hazard, and exposure assessment in the Western Himalaya using machine learning and numerical modelling. [PDF]

Sci Rep
Abhinav A, Sattar A.
europepmc   +1 more source

Implications of heterogeneous embankment conditions for geoelectrical investigations on dams: A case study at Mactaquac Dam, Canada

Near Surface Geophysics, EarlyView.
Abstract Electrical resistivity tomography (ERT) has been shown to be effective for surveying and monitoring dams, due to the method's sensitivity to moisture content and relevant physical properties (e.g., porosity). Automated ERT systems, capable of time‐lapse monitoring, can be used to detect variations in ground conditions.
John S. Ball, Karl E. Butler, Jonathan E. Chambers, Paul B. Wilkinson, Andrew Binley   +4 more
wiley   +1 more source

Miocene and Pliocene ice and air from the Allan Hills blue ice area, East Antarctica. [PDF]

Proc Natl Acad Sci U S A
Shackleton S, Hishamunda V, Davidge L, Brook E, Peterson JM, Carter A, Aarons S, Kurbatov A, Introne D, Yan Y, Nesbitt IM, Buizert C, Steig EJ, Schauer AJ, Morgan J, Neff PD, Epifanio JA, Severinghaus J, Bender M, Higgins JA.   +19 more
europepmc   +1 more source

Using synthetic models to understand the detecting ability of ground‐penetrating radar for water‐conducting structures in the bedrock of formerly glaciated site

Near Surface Geophysics, EarlyView.
Abstract Utilizing synthetic models for the interpretation of ground‐penetrating radar (GPR) profiles can aid in the detection of hydrogeological structures by identifying their signatures. In this study, finite difference (FD) forward modelling was used to understand the detection ability of 50 MHz GPR for (1) the quaternary deposit–bedrock contact ...
Annika Katarina Åberg, Salla Eeva, Emilia Koivisto, Susanne Charlotta Åberg, Seija Kultti, Kirsti Korkka‐Niemi   +5 more
wiley   +1 more source

Impacts of future sea level change on Greenland from community knowledge, coastal mapping, and glacial isostatic adjustment models. [PDF]

Proc Natl Acad Sci U S A
Tinto KJ, Austermann J, Bell RE, Blockley D, Brayton CE, Krawczyk D, Lewright L, Lloyd AJ, Nitsche FO, Paxman GJG, Porter DF, Sørensen A, Turrin M, Zinglersen K.   +13 more
europepmc   +1 more source

Swimming Upriver? Exploring the Sources of Freshwater and Marine Fish in Military Diet in Sixteenth‐ to Nineteenth‐Century Northeastern North America

International Journal of Osteoarchaeology, EarlyView.
ABSTRACT Atlantic cod were caught in large numbers and shipped from fishing stations in North America to Europe and the Caribbean, and this has been frequently studied zooarchaeologically; however, the exchange of cod and other fish into interior North America has received less study.
Martin H. Welker, Suzanne Needs‐Howarth, Eréndira M. Quintana Morales   +2 more
wiley   +1 more source