Results 71 to 80 of about 42,717 (194)

Size‐based regulation and water quality: Evidence from the Iowa hog industry

American Journal of Agricultural Economics, Volume 108, Issue 3, Page 829-855, May 2026.
Abstract The growing prevalence of animal feeding operations (AFOs) in the United States raises concerns among the public and regulators about their impact on local environmental quality. By linking historical regulatory records of AFOs in Iowa to downstream surface water pollution monitors, this paper studies the effects of the 2003 Clean Water Act ...
Chen‐Ti Chen, Gabriel E. Lade, John M. Crespi, David A. Keiser   +3 more
wiley   +1 more source

A High-Precision Method for Evaluating the Similarity of Maritime Vessel Trajectories

Journal of Marine Science and Engineering
This study investigates the demand for high-precision trajectory similarity assessment in intelligent maritime navigation. This is done by analyzing discrepancies between GPS-derived trajectories and actual vessel paths, while identifying critical ...
Ran Ji, Mengkai Ma, Jian Dong, Sen Wang
doaj   +1 more source

Modeling hydrography and marine sedimentation in the Cariaco Basin since the Last Glacial Maximum [PDF]

, 2009
The Cariaco Basin has shallow connections with the Caribbean Sea, and these are further reduced at times of lower sea level, such as at the Last Glacial Maximum (LGM).
Lane-Serff, G.F., Pearce, R.B.
core   +1 more source

Cross‐scale interactions mediate local drivers of nonnative species richness

Ecography, Volume 2026, Issue 4, April 2026.
Many well‐supported hypotheses seek to explain drivers of nonnative species richness across spatial scales, but evidence for common patterns among regions and taxa remains inconclusive. This study investigates why consistent patterns are elusive by estimating and assessing cross‐scale interactions, wherein large‐scale factors contextualize patterns ...
Lily M. Thompson, William K. Annis, Stephen R. Midway, Julian D. Olden, Brandon K. Peoples   +4 more
wiley   +1 more source

Forschungsschiff METEOR Reise Nr. 61 (2004) - Nordost-Atlantik [PDF]

, 2004
R/V METEOR Cruise No. 61 was divided into three different legs, which all focused on the NEAtlantic to the west of Ireland from the Porcupine Seabight towards the Rockall Bank.
Hebbeln, Dierk, Pfannkuche, Olaf, Ratmeyer, Volker, Reston, Timothy J.   +3 more
core  

Variation in the seston C:N ratio of the Arctic Ocean and pan-Arctic shelves [PDF]

, 2014
Studying more than 3600 observations of particulate organic carbon (POC) and particulate organic nitrogen (PON), we evaluate the applicability of the classic Redfield C:N ratio (6.6) and the recently proposed Sterner ratio (8.3) for the Arctic Ocean and ...
Andersen, Tom, Bellerby, Richard G. J., Frigstad, Helene, Hessen, Dag O., Silyakova, Anna   +4 more
core   +1 more source

Challenges and Opportunities for National‐Scale Projections of Future Coastal Landscape Change

Earth's Future, Volume 14, Issue 4, April 2026.
Abstract Local to global scale projections of future coastal landscape change are essential to improve land and resource management decisions that aim to prepare for and reduce risk exposure to impending coastal hazards. However, the availability of actionable knowledge is often limited due to the complexity of drivers of change, their consequences ...
Erika E. Lentz, Davina L. Passeri, Sara L. Zeigler, Kate White, Thomas Wahl, Amanda D. Stoltz, Elizabeth A. Pendleton, Shubhra Misra, Trevor Meckley, Ben Hamlington, Neil Ganju, Amanda E. Cravens, Joel Carr, Christine A. Buckel   +13 more
wiley   +1 more source

A Self-Adaptive Compression Method for Ship Trajectories without Threshold Setting

Journal of Marine Science and Engineering
Addressing the shortcomings of existing ship trajectory compression methods that rely on the empirical setting of a fixed threshold and face challenges in controlling the spatial similarity before and after compression, this paper proposes a self ...
Lihua Zhang, Yinfei Zhou, Lulu Tang, Shuaidong Jia, Zeyuan Dai   +4 more
doaj   +1 more source

Identifying the Extent of River‐Influenced Waters of the Transpolar Drift With In Situ Measurements of Dissolved Organic Matter Fluorescence and Seawater Density

Journal of Geophysical Research: Oceans, Volume 131, Issue 4, April 2026.
Abstract The oceanic component of the Transpolar Drift (TPD) is a key component of Arctic Ocean surface circulation. However, our understanding of its spatial extent and influence on the underlying water column remains limited. This study leverages a unique high spatial resolution oceanographic transect from August 2022 (late summer), first to identify
Zoé Koenig, Mats A. Granskog, Morven Muilwijk, Achim Randelhoff, Angelika H. H. Renner, Melissa Chierici, Agneta Fransson, Rafael Gonçalves‐Araujo, Paul A. Dodd   +8 more
wiley   +1 more source

Complex marine (river) expeditionary studies ― an important direction of development of scientific and technical potential of the sea-economy complex of the country

Геофизический журнал, 2019
In accordance with the provisions of the Agreement on Scientific and Technical Cooperation between the State Institution “State Hydrography” of the Ministry of Infrastructure of Ukraine and the State Institution “Scientific Hydrophysical Center of the ...
N.F. Golodov, A.Yu. Gordeyev, Yu.I. Popov, S.G. Fedoceenkov, A.A. Shchiptsov, O.A. Shchiptsov   +5 more
doaj   +1 more source