Results 41 to 50 of about 1,730,646 (204)

Three‐dimensional characterization of particle morphology in natural gravel and blasted rock fragments using SfM‐MVS photogrammetry

open access: yesRiver
This study aims to develop a high‐precision and cost‐efficient method for the three‐dimensional reconstruction of large particles in natural gravel and blasted rock fragments, utilizing Structure from Motion (SfM) and Multi‐View Stereo (MVS) techniques ...
Hongchen Liu   +4 more
doaj   +1 more source

The grain size distribution function of suspended load in the lower Yellow River

open access: yesRiver
The log‐normal distribution function (LNDF) and Weibull cumulative density function (WCDF) represent two prevalent approaches for characterizing sediment grain size distributions.
Zipu Ma
doaj   +1 more source

Newtown Creek Green Map

open access: yes, 2003
A map detailing the area of Newtown Creek by the East River in New York City (inset map shows where in relation to Manhattan and surrounding boroughs).
East River Apprenticeshop
core   +1 more source

Spatiotemporal variability of aerosol optical depth and climatic coupling over Jaipur city based on multi‐spectral satellite analysis

open access: yesRiver
Aerosol dynamics in semi‐arid cities are key to understanding air quality and climate interactions. This study examines the spatiotemporal variability of Aerosol Optical Depth (AOD) over Jaipur, India, from 2018 to 2024 using MODIS observations at 470 ...
Aman Yadav   +2 more
doaj   +1 more source

Biennial assessment of Ohio River water quality conditions (Online) [PDF]

open access: yes, 2000
Electronic coverage as of Feb. 2, 2005: water years 2000 and 2001-; Supporting data in appendices, a separate file.; Description based on: Water years 2000 and 2001; title from PDF cover (viewed Feb.
Ohio River Valley Water Sanitation Commission.
core  

Passaic River Basin News, Summer 2005

open access: yes, 2005
This is the newsletter of the Passaic River Coalition (PRC), an urban watershed association active since 1969. The PRC focuses on improvements in land-water resource management, and public health issues by working as an advisor to citizens, other ...

core   +1 more source

Source analysis of nitrate pollution in a typical tributary of the upper Yellow River using a combined approach of stable isotopes and DOM fluorescence characteristics

open access: yesRiver
Identifying the sources and characteristics of water pollution is essential for the protection and management of water environments. Nitrate (NO3−) is a key pollutant affecting water quality in the Qingshui River, a typical semi‐arid tributary in the ...
Bin Xu   +12 more
doaj   +1 more source

River sediments [PDF]

open access: yesPhilosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences, 2012
Abstract River history is reflected in the nature of the sediments carried and deposited over time. Using examples drawn from around the world, this account illustrates how river sediments have been used to reconstruct past environmental changes at a variety of scales in time and space.
openaire   +3 more sources

Seasonal dynamics and environmental drivers of dissolved organic matter distribution in heterogeneous river terrains

open access: yesRiver
Dissolved organic matter (DOM) in rivers plays a key role in the global carbon cycle and aquatic ecosystems, yet its spatiotemporal dynamics across complex terrains remains inadequately characterized.
Kun Shi   +5 more
doaj   +1 more source

Passaic River Basin News, Summer 2006

open access: yes, 2006
This is the newsletter of the Passaic River Coalition (PRC), an urban watershed association active since 1969. The PRC focuses on improvements in land-water resource management, and public health issues by working as an advisor to citizens, other ...

core   +1 more source

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