MEASUREMENT OF AIR TEMPERATURE FLUCTUATIONS WITH THERMOCOUPLES

1969 ◽  
Author(s):  
G. S. Campbell
Keyword(s):  
Air Temperature ◽  
Temperature Fluctuations

The Effect of Bagnold Dunes Slopes on the Short Timescale Air Temperature Fluctuations at Gale Crater on Mars

2018 ◽  
Vol 45 (21) ◽  
pp. 11,588-11,594 ◽  
Author(s):  
Nina Miller ◽  
Manuel de la Torre Juárez ◽  
Leslie Tamppari
Keyword(s):  
Air Temperature ◽  
Temperature Fluctuations ◽  
Gale Crater ◽  
Short Timescale

scholarly journals Thermal history and comfort in a Brazilian subtropical climate: a 'cool' addiction hypothesis

2016 ◽  
Vol 16 (1) ◽  
pp. 7-20 ◽  
Author(s):  
Renata De Vecchi ◽  
Christhina Maria Cândido ◽  
Roberto Lamberts
Keyword(s):  
Air Temperature ◽  
Indoor Air ◽  
Thermal History ◽  
Air Conditioning ◽  
Prolonged Exposure ◽  
Temperature Fluctuations ◽  
Subtropical Climate ◽  
Indoor Thermal Comfort ◽  
Air Speed ◽  
The Impact

Abstract Currently, there is a rising trend for commercial buildings to use air conditioning to provide indoor thermal comfort. This paper focuses on the impact of prolonged exposure to indoor air-conditioned environments on occupants' thermal acceptability and preferences in a mixed-mode building in Brazil. Questionnaires were administered while indoor microclimatic measurements were carried out (i.e., air temperature, radiant air temperature, air speed and humidity). Results suggest significant differences in occupants' thermal acceptability and cooling preferences based on thermal history; differences were found between groups based on different physical characteristics (i.e., different gender and body condition). The findings also indicated a significant potential to implement temperature fluctuations indoors when occupants are exposed to air conditioning environments in warm and humid climates.

scholarly journals Spatiotemporal Response of Vegetation to Rainfall and Temperature fluctuations in the Sahel. Case study in the Forest Reserve of Fina, Mali

2021 ◽  
Author(s):  
Karamoko Sanogo ◽  
Birhanu B. Zemadim ◽  
Souleymane Sanogo ◽  
Ashatu Abdulkadiri ◽  
Abdramane BA
Keyword(s):  
Air Temperature ◽  
Arid Zone ◽  
Time Lag ◽  
Temperature Fluctuations ◽  
Vegetation Response ◽  
Forest Reserve ◽  
Forest Reserves ◽  
Climate Fluctuation ◽  
Spatiotemporal Response

Forests constitute a key component of the Earth system but the sustainability of the forest reserves in the semi-arid zone is a real concern since its vegetation is very sensitive to the climate fluctuation. The understanding of the mechanisms for the interaction vegetation-climate is poorly studied in the context of African Sahel. In this study, the characteristics of the vegetation response to the fluctuations of precipitation and temperature is determined for the forest reserve of Fina. Rainfall estimates, air temperature and NDVI are used to establish the lag correlations between fluctuations of vegetation and climate variables at both seasonal and interannual bases. Results shows increasing tendency of NDVI started from the 1990s coinciding the recovery of the rainfall from the 1980s drought and the obtained correlation(r=0.66) is statistically significant (pvalue<0.01). The strongest responses of vegetation to rainfall and temperature fluctuations were found after 30 and 15 days, respectively. Moreover, at shorter time lag (e.g. 15 days) more pronounced vegetation responses to both rainfall and temperature were found in agricultural dominated land while at longer time lag (e.g. 30 days) stronger response was observed in Bare dominated land. The vegetation response to the climate fluctuation is modulated by the land use/cover dynamics. Keywords: NDVI, Rainfall, Air temperature, vegetation response, Fina Forest Reserve, Mali.

Air temperature fluctuations in rooms

1997 ◽  
Vol 32 (2) ◽  
pp. 101-114 ◽  
Author(s):  
A.K. Melikov ◽  
U. Krüger ◽  
G. Zhou ◽  
T.L. Madsen ◽  
G. Langkilde
Keyword(s):  
Air Temperature ◽  
Temperature Fluctuations

scholarly journals Sentinel-1 InSAR Measurements of Elevation Changes over Yedoma Uplands on Sobo-Sise Island, Lena Delta

2018 ◽  
Vol 10 (7) ◽  
pp. 1152 ◽  
Author(s):  
Jie Chen ◽  
Frank Günther ◽  
Guido Grosse ◽  
Lin Liu ◽  
Hui Lin
Keyword(s):  
Active Layer ◽  
Late Pleistocene ◽  
Air Temperature ◽  
Climate Warming ◽  
Temperature Fluctuations ◽  
Surface Elevation ◽  
Freeze Thaw ◽  
Elevation Changes ◽  
Mean Annual Air Temperature ◽  
Lena Delta

Yedoma—extremely ice-rich permafrost with massive ice wedges formed during the Late Pleistocene—is vulnerable to thawing and degradation under climate warming. Thawing of ice-rich Yedoma results in lowering of surface elevations. Quantitative knowledge about surface elevation changes helps us to understand the freeze-thaw processes of the active layer and the potential degradation of Yedoma deposits. In this study, we use C-band Sentinel-1 InSAR measurements to map the elevation changes over ice-rich Yedoma uplands on Sobo-Sise Island, Lena Delta with frequent revisit observations (as short as six or 12 days). We observe significant seasonal thaw subsidence during summer months and heterogeneous inter-annual elevation changes from 2016–17. We also observe interesting patterns of stronger seasonal thaw subsidence on elevated flat Yedoma uplands by comparing to the surrounding Yedoma slopes. Inter-annual analyses from 2016–17 suggest that our observed positive surface elevation changes are likely caused by the delayed progression of the thaw season in 2017, associated with mean annual air temperature fluctuations.

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