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1. Beyond rest and quiescence (endodormancy and ecodormancy): A novel model for quantifying plant–environment interaction in bud dormancy release

Author:
Lundell, Robin; Hänninen, Heikki; Saarinen, Timo; Åström, Helena; Zhang, Rui
Source:
Plant, cell and environment 2020 v.43 no.1 pp. 40-54
ISSN:
0140-7791
Subject:
air temperature,   etc   ; dormancy; environmental factors; models; phenology;     Show all 5 Subjects
Abstract:
... Bud dormancy of plants has traditionally been explained either by physiological growth arresting conditions in the bud or by unfavourable environmental conditions, such as non‐growth‐promoting low air temperatures. This conceptual dichotomy has provided the framework also for developing process‐based plant phenology models. Here, we propose a novel model that in addition to covering the classical ...
DOI:
10.1111/pce.13650

2. Experimental study on the dynamics, quality and impacts of using variable-speed pumps in buildings for frequency regulation of smart power grids

Author:
Wang, Huilong; Wang, Shengwei; Shan, Kui
Source:
Energy 2020 v.199 pp. 117406
ISSN:
0360-5442
Subject:
air temperature,   etc   ; air conditioning; buildings; heating systems; pumps; ventilation systems;     Show all 6 Subjects
Abstract:
... The increased generation of renewable power is challenging in terms of the power balance and reliability of power grids due to the intermittent nature of renewable sources. Heating, ventilation, and air-conditioning (HVAC) systems in buildings, at demand side, are promising candidates for providing frequency regulation. In this study, we systematically assessed the use of variable-speed pumps in H ...
DOI:
10.1016/j.energy.2020.117406

3. Estimation of daytime near-surface air temperature from satellite data

Author:
Labbi, Abdelkader
Source:
Remote sensing applications 2020 v.18 pp. 100305
ISSN:
2352-9385
Subject:
air temperature,   etc   ; climate; climate change; remote sensing; satellites;     Show all 5 Subjects
Abstract:
... The near-surface air temperature is an important factor affecting everyday life and be used in many environmental applications and climate change research. This study aimed to propose a simple methodology for estimating daytime near-surface air temperature (DNSAT) from satellite data. On the one hand, the split-window technique has been used to extract the surface brightness temperature at ground ...
DOI:
10.1016/j.rsase.2020.100305

4. Field assessment of winter outdoor 3-D radiant environment and its impact on thermal comfort in a severely cold region

Author:
Du, Jing; Sun, Cheng; Xiao, Qiuke; Chen, Xin; Liu, Jing
Source:
The Science of the total environment 2020 v.709 pp. 136175
ISSN:
0048-9697
Subject:
air temperature,   etc   ; buildings; climate; cold; humans; relative humidity; winter; China;     Show all 8 Subjects
Abstract:
... According to the Code for Design of Civil Buildings (GB 50352-2005), the severely cold region of China is defined as the area where the monthly mean air temperature is lower than or equal to −10 °C in January, and is lower than or equal to 25 °C in July, and mean relative humidity is higher than or equal to 50% in July. This study investigates outdoor 3-D short- and long-wave radiant flux densitie ...
DOI:
10.1016/j.scitotenv.2019.136175

5. Simulation and measurement of air temperatures and mean radiant temperatures in a radiantly heated indoor space

Author:
Guo, Hongshan; Ferrara, Maria; Coleman, James; Loyola, Mauricio; Meggers, Forrest
Source:
Energy 2020 v.193 pp. 116369
ISSN:
0360-5442
Subject:
air temperature,   etc   ; advection; cold; convection; environmental factors; surface temperature;     Show all 6 Subjects
Abstract:
... Determining variations in air temperature and mean radiant temperature (MRT), two primary environmental parameters directly linked to thermal comfort, can be challenging. The ease and effectiveness of both measurement and simulation are quite different for determining air temperature and MRT. We review these challenges and present an experiment demonstrating how these differences in complexity and ...
DOI:
10.1016/j.energy.2019.116369

6. An experimental examination of the effects of n-hexane and n-heptane fuel blends on combustion, performance and emissions characteristics in a HCCI engine

Author:
Aydoğan, Bilal
Source:
Energy 2020 v.192 pp. 116600
ISSN:
0360-5442
Subject:
air temperature,   etc   ; combustion; emissions; fuels; gasoline engines; heptane; hexane;     Show all 7 Subjects
Abstract:
... Homogenous charge compression ignition (HCCI) engines are low-temperature combustion engines with high thermal efficiency. The operation range of HCCI engines, which are not directly controlled on combustion, is limited by the problems of knocking and misfiring. At this point, it is aimed to eliminate the problem of knocking at the high engine loads by the charge mixture composition and various op ...
DOI:
10.1016/j.energy.2019.116600

7. Experimental investigation of water spray injection in liquid piston for near-isothermal compression

Author:
Patil, Vikram C.; Acharya, Pinaki; Ro, Paul I.
Source:
Applied energy 2020 v.259 pp. 114182
ISSN:
0306-2619
Subject:
air temperature,   etc   ; compressors; droplets; heat transfer; liquids; nozzles; stroke;     Show all 7 Subjects
Abstract:
... Near-isothermal compression is desired to achieve high efficiency in many compressor applications. Low heat transfer characteristic of conventional compressors is a major bottleneck in attaining a near-isothermal compression. A high heat transfer rate is possible with an injection of a large number of water droplets using a spray nozzle inside the compression chamber. In this paper, the effectiven ...
DOI:
10.1016/j.apenergy.2019.114182

8. Various Methods of Assessing Sugar Beet Seed Vigour and Its Impact on the Germination Process, Field Emergence and Sugar Yield

Author:
Podlaski, Sławomir; Chomontowski, Chrystian
Source:
Sugar tech 2020 v.22 no.1 pp. 130-136
ISSN:
0972-1525
Subject:
air temperature,   etc   ; germination; seeds; sugar beet; sugars; vigor;     Show all 6 Subjects
Abstract:
... During 2012–2015, the seed vigour of 54 commercial sugar beet varieties was evaluated. In addition, correlations among different methods of determining seed vigour and the potential impact of low vigour on the quality traits of seeds and root yield were investigated. The chosen seed vigour indicators were field emergence (early and final count), emergence course in a phytotron under controlled con ...
DOI:
10.1007/s12355-019-00754-5

9. Development and preliminary application of a gridded surface air temperature homogenized dataset for China

Author:
Xu, Yan; Zhao, Ping; Si, Dong; Cao, Lei; Wu, Xueyuan; Zhao, Yufei; Liu, Na
Source:
Theoretical and applied climatology 2020 v.139 no.1-2 pp. 505-516
ISSN:
0177-798X
Subject:
air temperature,   etc   ; climate; data collection; latitude; longitude; models; China;     Show all 7 Subjects
Abstract:
... When meteorological stations are quite unevenly distributed, a simple regional arithmetic mean of observation data may assign an excessive weight to one region with dense stations, which affects the representativeness of the regional mean. In this study, we used the homogenized monthly maximum (Tₘₐₓ), mean (Tₘ), and minimum (Tₘᵢₙ) temperature dataset at more than 2400 national surface meteorologic ...
DOI:
10.1007/s00704-019-02972-z

10. The extreme year—analysis of thermal conditions in Poland in 2018

Author:
Tomczyk, Arkadiusz M.; Bednorz, Ewa
Source:
Theoretical and applied climatology 2020 v.139 no.1-2 pp. 251-260
ISSN:
0177-798X
Subject:
air temperature,   etc   ; meteorology; research institutions; water management; Poland;     Show all 5 Subjects
Abstract:
... The study objective was the determination of thermal conditions in Poland in 2018 on the background of the multi-annual period 1966–2018. The study was based on data obtained from the Institute of Meteorology and Water Management – National Research Institute. The research showed a statistically significant increase in mean daily air temperature in the years 1966–2018. The highest mean annual air ...
DOI:
10.1007/s00704-019-02968-9

11. Potential predictability and skill assessment of boreal summer surface air temperature of South Asia in the North American multimodel ensemble

Author:
Ehsan, Muhammad Azhar
Source:
Atmospheric research 2020 v.241 pp. 104974
ISSN:
0169-8095
Subject:
air temperature,   etc   ; El Nino; La Nina; cold; prediction; summer; surface water temperature; Indian Ocean; South Asia;     Show all 9 Subjects
Abstract:
... The potential and actual forecast skill of surface air temperature (SAT) during boreal summer season (June to August: JJA) over South Asia (SA: 65°-100°E and 5°-30°N) is assessed in six ensemble prediction systems from the North American Multimodel Ensemble (NMME) project over the common period 1982–2016, and two different lead times (April and May). All models generally show the observed climatol ...
DOI:
10.1016/j.atmosres.2020.104974

12. Global and regional evolution of sea surface temperature under climate change

Author:
Ruela, R.; Sousa, M.C.; deCastro, M.; Dias, J.M.
Source:
Global and planetary change 2020 v.190 pp. 103190
ISSN:
0921-8181
Subject:
air temperature,   etc   ; climate; climate change; climate models; greenhouse gas emissions; heat; surface water temperature;     Show all 7 Subjects
Abstract:
... Sea surface temperature (SST) has important local and remote influence on global climate through the distribution and transport of heat and moisture, which in turn affect precipitation and air temperature patterns across the globe. Thus, this work aims to assess the worldwide regionalization of the SST evolution for the 21ˢᵗ century under the influence of climate change by means of: 1) division of ...
DOI:
10.1016/j.gloplacha.2020.103190

13. The impact of pace of life on pedestrian heat stress: A computational modelling approach.

Author:
Melnikov, Valentin R.; Krzhizhanovskaya, Valeria V.; Lees, Michael H.; Sloot, Peter M.A.
Source:
Environmental research 2020 v.186 pp. 109397
ISSN:
0013-9351
Subject:
air temperature,   etc   ; bioinformatics; cities; data collection; heat production; heat stress; microclimate; urban areas; walking; Singapore;     Show all 10 Subjects
Abstract:
... Elevated walking speed is an indicator of increased pace of life in cities, caused by environmental pressures inherent to urban environments, which lead to short- and long-term consequences for health and well-being. In this paper we investigate the effect of walking speed on heat stress. We define the heat-stress-optimal walking speed and estimate its values for a wide range of air temperatures w ...
DOI:
10.1016/j.envres.2020.109397

14. Accelerated changes of glaciers in the Yulong Snow Mountain, Southeast Qinghai-Tibetan Plateau

Author:
Wang, Shijin; Che, Yanjun; Pang, Hongxi; Du, Jiankuo; Zhang, Zhonglin
Source:
Regional environmental change 2020 v.20 no.2 pp. 38
ISSN:
1436-3798
Subject:
air temperature,   etc   ; climate change; glaciers; mountains; remote sensing; rivers; topographic maps; tourism; tourists; China;     Show all 10 Subjects
Abstract:
... The Yulong Snow Mountain (YSM) is a region of temperate glaciers in the southeast Qinghai-Tibetan Plateau. The present study systematically assessed the glacier changes during the past several decades using ground-based and remotely sensed observations and referencing topographic maps. The images and maps revealed that the glaciers area in the YSM retreated by 64.02% from 1957 to 2017. The length ...
DOI:
10.1007/s10113-020-01624-7

15. A model for obtaining ground temperature from air temperature in permafrost regions on the Qinghai-Tibetan Plateau

Author:
Hu, Guojie; Zhao, Lin; Li, Ren; Wu, Xiaodong; Wu, Tonghua; Pang, Qiangqiang; Liu, Guang yue; Xie, Changwei
Source:
Catena 2020 v.189 pp. 104470
ISSN:
0341-8162
Subject:
air temperature,   etc   ; air; drilling; ecosystems; global warming; linear models; permafrost; regression analysis; China;     Show all 9 Subjects
Abstract:
... Air and ground temperatures are important factors contributing to land and atmosphere processes as well as ecosystem dynamics. This paper presents a simple model for simulating ground temperature from air temperature in the permafrost regions on the Qinghai-Tibetan Plateau (QTP). The model takes hysteresis between daily air temperature and ground temperature into consideration as well as exponenti ...
DOI:
10.1016/j.catena.2020.104470

16. Application of the non-stationary peak-over-threshold methods for deriving rainfall extremes from temperature projections

Author:
Lee, Okjeong; Sim, Inkyeong; Kim, Sangdan
Source:
Journal of hydrology 2020 v.585 pp. 124318
ISSN:
0022-1694
Subject:
air temperature,   etc   ; climate change; climate models; dewpoint; hydrology; issues and policy; rain; time series analysis; uncertainty;     Show all 9 Subjects
Abstract:
... Concerns about climate change are amplifying interest in future rainfall extremes. However, there are big differences between the statistics of rainfall extremes obtained using future rainfall time series produced from various climate models. Such large uncertainties create a lot of confusion in establishing climate change adaptation measures. Looking at future rainfall extremes at a particular si ...
DOI:
10.1016/j.jhydrol.2019.124318

17. Forecasting surface water temperature in lakes: A comparison of approaches

Author:
Zhu, Senlin; Ptak, Mariusz; Yaseen, Zaher Mundher; Dai, Jiangyu; Sivakumar, Bellie
Source:
Journal of hydrology 2020 v.585 pp. 124809
ISSN:
0022-1694
Subject:
air temperature,   etc   ; ecosystems; environmental assessment; fisheries management; hydrology; lakes; models; regression analysis; surface water temperature; wavelet;     Show all 10 Subjects
Abstract:
... Accurate water temperature forecasting in lake systems is important for environmental impact assessment and fisheries management, among others. In this study, two models are developed and applied for water temperature forecasting in lake systems: (1) the multi-layer perceptron neural network (MLPNN) model; and (2) the wavelet transform and MLPNN integrated model (WT_MLPNN). The models are applied ...
DOI:
10.1016/j.jhydrol.2020.124809

18. An experimental investigation of the performance of new design of solar air heater (tubular)

Author:
Hassan, Hamdy; Abo-Elfadl, Saleh; El-Dosoky, M.F.
Source:
Renewable energy 2020 v.151 pp. 1055-1066
ISSN:
0960-1481
Subject:
air temperature,   etc   ; air; air flow; heat; mass flow; renewable energy sources; solar heaters;     Show all 7 Subjects
Abstract:
... An experimental work on the performance of new design of solar air heater (SAH) called tubular solar heater (TSAH) is investigated experimentally. In this design, the flat absorber plate of the flat solar air heater (FSAH) is replaced by adjacent tubes at the same direction of the airflow through the SAH. Two SAHs (FSAH and TSAH) having the same dimensions and materials except their absorbers are ...
DOI:
10.1016/j.renene.2019.11.112

19. Artificial neural network modelling of moisture content evolution for convective drying of cylindrical quince slices

Author:
Chasiotis, V.K.; Tzempelikos, D.A.; Filios, A.E.; Moustris, K.P.
Source:
Computers and electronics in agriculture 2020 v.172 pp. 105074
ISSN:
0168-1699
Subject:
air temperature,   etc   ; air drying; air flow; neural networks; prediction; quinces; water content;     Show all 7 Subjects
Abstract:
... In the present study, moisture content evolution of cylindrical quince slices during convective drying was modelled by using artificial neural networks (ANN). Quince slices with an average initial moisture content of 81% in wet basis (w.b.) or 4.27 kgwₐₜₑᵣ/kgdᵣy ₘₐₜₜₑᵣ in dry basis (d.b.), were dried in a laboratory thermal convective dryer and experimental data of moisture content versus drying t ...
DOI:
10.1016/j.compag.2019.105074

20. Investigating the performance enhancement of copper fins on trapezoidal thermochemical reactor

Author:
Han, Xiaojing; Liu, Shuli; Zeng, Cheng; Yang, Liu; Shukla, Ashish; Shen, Yongliang
Source:
Renewable energy 2020 v.150 pp. 1037-1046
ISSN:
0960-1481
Subject:
air temperature,   etc   ; copper; heat transfer; renewable energy sources; thermal energy; water temperature; zeolites;     Show all 7 Subjects
Abstract:
... Thermochemical energy storage has a great potential in thermal energy storage attracting extensive attention in building’s applications. However, performance issues of the thermochemical reactor should be tackled to improve the overall performance. To enhance the heat transfer within the reactor, this study proposes a thermochemical reactor integrated with copper fins. The reactor features both he ...
DOI:
10.1016/j.renene.2019.11.052