Results 141 to 150 of about 140,190 (361)

A simple index for assessing cumulative human impacts on mountain lakes

Limnology and Oceanography: Methods, EarlyView.
Abstract Mountain lakes are highly sensitive ecosystems and effective sentinels of environmental change, yet the exposure and magnitude of the human footprint remain poorly quantified. In this study, we develop a simple and non‐invasive abiotic index to assess cumulative pressures on mountain lakes. The proposed index integrates eight variables grouped
Clara Sáez, Ignasi Arranz, Guillermo García‐Gómez, Javier Sánchez‐Hernández   +3 more
wiley   +1 more source

Bentang budaya: Identifikasi Aktivitas Manusia dalam ruang bentuklahan proses fluvial di Tempuran Opak Oyo Yogyakarta

Jurnal Pendidikan Geografi Undiksha
Salah satu fenomena geosfer yang menarik adalah bentang budaya yang terdapat di Tempuran Opak Oyo. Tempuran Opak Oyo merupakan pertemuan antara Sungai Opak dan Sungai Oyo, bentuk lahan fluvial hasil proses alam yang secara administratif terletak di ...
Lidya Lestari Sitohang, Krisna Jadug Setyo Wicaksono, Ety Amelia Sai’dah, Fizah Masrifah, Ahmad Faiq Fahruddin   +4 more
doaj   +1 more source

Dimensions of fluvial-tidal meanders: Are they disproportionally large?

, 2018
Many of the world’s major river systems seemingly have one or a few disproportionally large meanders, with tight bends, in the fluvial-tidal transition (e.g., the Thames in the UK, and the Salmon River in Canada).
van der Hoek, Bram, Lexmond, Bente, Leuven, J.R.F.W., Spruijt, Matthijs, Kleinhans, M.G., van Maanen, B.   +5 more
core  

Quantifying temporal dynamics of greenhouse gas emissions in lake mesocosms: Deployment of a low‐cost measurement system

Limnology and Oceanography: Methods, EarlyView.
Abstract Greenhouse gas (GHG) emissions from freshwater ecosystems contribute significantly to global carbon budgets, yet they remain poorly constrained due to limited high‐frequency measurements. We tested a low‐cost, high‐frequency GHG measurement system in a long‐term mesocosm experiment in Lemming, Denmark, over a 7‐month period, focusing on CO2 ...
Tuba Bucak, Eti Ester Levi, Claus Melvad, Jianming Deng, Mikhail Mastepanov, Robert Ladwig, Thomas Alexander Davidson   +6 more
wiley   +1 more source

A Framework for Modeling Tropical Cyclone‐Induced Compound Flooding of the Continental US: Demonstrated in New Orleans

Water Resources Research
Compound flooding involves the interaction of multiple flood processes (e.g., coastal, fluvial, and pluvial) and is modulated by several factors (e.g., weather, climate, topobathy, morphology, time‐lag).
Joshua Green, Jeff Neal, Ivan D. Haigh, Hamish Wilkinson, Tom Collings, Nans Addor, Niall Quinn, Nicolas Bruneau, Thomas Loridan, Balaji Mani, Ignatius R. Pranantyo   +10 more
doaj   +1 more source

Statistical filtering to aid in the sorting of phytoplankton: The effects of image library size and phytoplankton shape

Limnology and Oceanography: Methods, EarlyView.
Abstract The demand for efficient image sorting methods has increased due to technological advancements that enable more intensive phytoplankton monitoring. Both statistical and machine learning algorithms can misidentify algal taxa in taxonomically diverse samples, in which phytoplankton morphology and image traits can vary.
Christopher R. Farrow, Josef D. Ackerman
wiley   +1 more source

Recuperación del terminal fluvial de Puerto Arango en Florencia Caquetá

, 2023
The Puerto Arango River terminal is a crucial transportation hub for moving goods and people in Florencia Caquetá. However, its current infrastructure is inadequate to meet the needs of users, which leads to safety problems and inefficiencies.
Huertas Castelblanco, Jojhan Sebastian
core  

A novel approach for in situ benthic habitat characterization

Limnology and Oceanography: Methods, EarlyView.
Abstract Habitat heterogeneity is a key driver of temporal and spatial variability of subtidal marine benthic biodiversity. However, this makes it a challenging environment in which to measure and quantify the factors driving biodiversity in a consistent manner.
Ryan J. W. Mathews, David K. A. Barnes, Simon A. Morley, Gareth Flint, Lloyd S. Peck   +4 more
wiley   +1 more source

Funcionalidade ecológica em cursos d'água: implicações para a requalificação da paisagem fluvial [PDF]

, 2015
Dissertação (mestrado) - Universidade Federal de Santa Catarina, Centro de Filosofia e Ciências Humanas, Programa de Pós-Graduação em Geografia, Florianópolis, 2015.Os cursos d?água em áreas urbanas possuem alto potencial de requalificação, mesmo quando ...
Rigotti, Jucimara Andreza
core  

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, Hannah Nicklay, Jacob Cianci‐Gaskill, Shannon Dunnigan Kimmel, J. Silas Tanner, Kim Cressman, Steven E. McMurray, Yoshimi M. Rii, Rikke Jeppesen, Rachel Guy, Erik Smith   +10 more
wiley   +1 more source