Results 61 to 70 of about 2,398,036 (206)

A new perspective on the spatial, temporal, and vertical distribution of biomass burning: quantifying a significant increase in CO emissions

Environmental Research Letters, 2020
A variance-maximization approach based on 19 years of weekly measurements of pollution in the troposphere carbon monoxide (CO) measurements quantifies the spatial-temporal distribution of global biomass burning.
Chuyong Lin, Jason Blake Cohen, Shuo Wang, Ruoyu Lan, Weizhi Deng   +4 more
doaj   +1 more source

Small scale distribution patterns and vertical migration of North Sea herring larvae (Clupea harengus, Teleostei: Clupeidea) in relation to abiotic and biotic factors

Scientia Marina, 2009
The distribution of herring larvae in relation to environmental conditions and the occurrence of possible prey and predator organisms was studied during a 4-day period on a permanent station in the northern North Sea in September 1999.
Holger Haslob, Norbert Rohlf, Dietrich Schnack   +2 more
doaj   +1 more source

Unmanned Aerial Vehicle Observations of the Vertical Distribution of Particulate Matter in the Surface Layer of the Taklimakan Desert in China

Atmosphere, 2020
Field observations made with unmanned aerial vehicles of the particulate matter (PM) concentration from the ground to a height of 500 m were conducted at Xiaotang and Tazhong in the Taklimakan Desert (TD), China, from 7 to 15 November 2019.
Lili Jin, Qing He, Hong Jiang, Junan Xiao, Quanwei Zhao, Sasa Zhou, Zhenjie Li, Jiawei Zhao   +7 more
doaj   +1 more source

Quality externalities among hotel establishments: what is the impact of tour operators? [PDF]

, 2002
This paper is about quality decisions in a vertical structure where competitive producers sell to powerful retailers. Specifically, we focus the analysis on the role played by a tour operator (TO) on quality investments when distributing the capacity of ...
Calveras, A, Vera Hernandez, M
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Changes and Predictions of Vertical Distributions of Global Light-Absorbing Aerosols Based on CALIPSO Observation

Remote Sensing, 2020
Knowledge of the vertical distribution of absorbing aerosols is crucial for radiative forcing assessment, and its quasi real-time prediction is one of the keys for the atmospheric correction of satellite remote sensing. In this study, we investigated the
Zigeng Song, Xianqiang He, Yan Bai, Difeng Wang, Zengzhou Hao, Fang Gong, Qiankun Zhu   +6 more
doaj   +1 more source

Deep chlorophyll maximum in temperate lakes with different trophic conditions − a rare or common phenomenon?

Knowledge and Management of Aquatic Ecosystems
Deep chlorophyll maxima (DCM) are a common phenomenon in low-trophic stratified lakes, and there is much less information about the occurrence of DCM in eutrophic and dystrophic lakes.
Karpowicz Maciej, Pasztaleniec Agnieszka, Grabowska Magdalena, Pietryczuk Anna   +3 more
doaj   +1 more source

Vertical variation in leaf functional traits of Parashorea chinensis with different canopy layers

Frontiers in Plant Science
IntroductionCanopy species need to shift their ecological adaptation to improve light and water resources utilization, and the study of intraspecific variations in plant leaf functional traits based at individual scale is of great significance for ...
Nan Jin, Nan Jin, Nan Jin, Nan Jin, Xiaocheng Yu, Xiaocheng Yu, Xiaocheng Yu, Jinlong Dong, Jinlong Dong, Jinlong Dong, Mengcheng Duan, Yuxuan Mo, Leiyun Feng, Leiyun Feng, Leiyun Feng, Rong Bai, Rong Bai, Rong Bai, Jianli Zhao, Jia Song, Gbadamassi Gouvide Olawole Dossa, Huazheng Lu, Huazheng Lu, Huazheng Lu   +23 more
doaj   +1 more source

VERTICAL COORDINATION IN PORK: IMPLICATIONS FOR FOOD DISTRIBUTION [PDF]

Agribusiness,
Martinez, Stephen W.
core   +1 more source

Vertical distribution and trophic structure of the macrozooplankton in a shallow temperate estuary (Ria de Aveiro, Portugal)

Scientia Marina, 2006
The zooplankton of the lower part of Canal de Mira (Ria de Aveiro) was sampled during one lunar month. The sampling programme consisted of nine 25 hour fixed-cycles, separated weekly. In each cycle, samples were collected every two hours at three depths (
Fernando M. Morgado, Ramiro Pastorinho, Carla Quintaneiro, Pedro Ré   +3 more
doaj   +1 more source

Model of Vertical Marketing System in Retail Distribution [PDF]

Fierce market competition among leading retailers asserts different models of market appearance and cooperation with suppliers. Vertical integration, as a kind of cooperation could range from one-hand transactions to mutual investments in specific assets.
Dario Dunkovic
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