scholarly journals A High-Accuracy Multiwavelength Radiometer for In Situ Measurements in the Thermal Infrared. Part I: Characterization of the Instrument

Author(s):  
Michel Legrand ◽  
Christophe Pietras ◽  
Gérard Brogniez ◽  
Martial Haeffelin ◽  
Nader Khalil Abuhassan ◽  
...  
Author(s):  
Gérard Brogniez ◽  
Christophe Pietras ◽  
Michel Legrand ◽  
Philippe Dubuisson ◽  
Martial Haeffelin

Urban Science ◽  
2019 ◽  
Vol 3 (1) ◽  
pp. 8
Author(s):  
Cristina Matos ◽  
António Cunha ◽  
Francisco Pereira ◽  
Arminda Gonçalves ◽  
Elisabete Silva ◽  
...  

The characterization of water and energy consumptions is essential in order to define strategies for their rational use. The way these resources are used in households is the path for efficient and rational management, interdependent from each other. It is believed that there are significant differences between the patterns of water and energy consumption in rural and urban areas, where influencing factors should also be identified. This article aims to provide some preliminary results of a research project named ENERWAT, with the main goal to characterize the relation between water and energy consumption at the end use level for urban and rural environments. One of the goals of the aforementioned project was the design, application, and results analysis of a survey, in order to find the main differences in the water and energy consumptions at the end use level and the factors that influence it in urban and rural households. A total of 245 households participated in the research during 2016 (110 urban dwellings and 135 rural), responding to questions on their family composition, dwellings characterization, water and energy consumption habits, and conservation behaviors of these resources. The project also includes the instrumentation and monitoring of dwellings in rural and urban environments to quantify the water consumption and related energy consumption. This stage is still in progress and includes in situ measurements of nine different households (four in rural and five in urban environments) during at least one year. In this article, some of the results obtained by the survey application and the in situ measurements are presented. Despite the large number of data and the associated complexity, it can be concluded that the joint analysis of the results allows identification of a connection between water and energy consumption, as well as a household’s consumption patterns.


2015 ◽  
Vol 61 (229) ◽  
pp. 864-874 ◽  
Author(s):  
Jinlong Chao ◽  
Chengyu Liu ◽  
Yingjun Xu ◽  
Wei Gu ◽  
Ying Li ◽  
...  

AbstractWe report on the radiative transfer process and optical properties of sea ice in the thermal infrared (TIR) band, presenting two new linear kernel driver models (Relative Emissivity Distribution Function, REDF) that describe TIR emission characteristics of smooth and rough ice. In order to test the models and determine the necessary coefficients, in situ measurements from the Bohai Sea were carried out during the 2011/12 and 2012/13 boreal winters. The results show that the relative emissivity of smooth sea ice decreases along with increasing viewing zenith angle, and the shape of the relative emissivity curve is similar to that of an ideal plane. Affected by parameters such as roughness and surface temperature distribution, the anisotropy of relative emissivity of sea ice with a high degree of roughness is stronger relative to the cosine emitter. The model coefficients were also obtained using a robust regression method based on the measured data. The presented models are more practical than the numerical radiative transfer model and can be used for multi-angular TIR remote sensing.


2011 ◽  
Vol 222 ◽  
pp. 106-109
Author(s):  
Janis Bukins ◽  
Gunta Kunakova ◽  
Pāvels Birjukovs ◽  
Juris Prikulis ◽  
Justin Varghese ◽  
...  

Conductive AFM and in situ methods were used to determine contact resistance and resistivity of individual Sb2S3 nanowires. Nanowires were deposited on oxidized Si surface for in situ measurements and on Si surface with macroelectrodes for conductive AFM (C-AFM) measurements. Contact resistance was determined by measurement of I(V) characteristics at different distances from the nanowire contact with the macroelectrode and resistivity of nanowires was determined. Sb2S3 is a soft material with low adhesion force to the surface and therefore special precautions were taken during measurements.


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