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Enhanced Statistical Estimation of Air Temperature Incorporating Nighttime Light Data

Yunhao Chen, Jinling Quan, Wenfeng Zhan, Zheng Guo
2016 Remote Sensing  
Second, this study attempts to introduce the idea of using nighttime light data for Ta estimation and inspire others to further explore the relationship between the nighttime light data and Ta.  ...  Model inter-comparison shows that this method outperforms six additional empirical regressions that have not incorporated nighttime light data or considered predictor independence or coefficient dynamics  ...  The bias of the estimated Ta shows that the method has no clear preference for air temperatures, land covers, surface properties, or nighttime light in global terms, and is robust against data availability  ... 
doi:10.3390/rs8080656 fatcat:5cbbsgnyxrafznbqzb4xj7hzly

Separation of net ecosystem exchange into assimilation and respiration using a light response curve approach: critical issues and global evaluation

GITTA LASSLOP, MARKUS REICHSTEIN, DARIO PAPALE, ANDREW D. RICHARDSON, ALMUT ARNETH, ALAN BARR, PAUL STOY, GEORG WOHLFAHRT
2010 Global Change Biology  
from the intercept of the ordinate, which avoids the use of potentially problematic nighttime data.  ...  We introduce an algorithm for NEE partitioning that uses a hyperbolic light response curve fit to daytime NEE, modified to account for the temperature sensitivity of respiration and the VPD limitation  ...  Institute for Biogeochemistry, National Science Foundation, University of Tuscia, US Department of Energy.  ... 
doi:10.1111/j.1365-2486.2009.02041.x fatcat:ez3hngmgnnhmljw67fhudislq4

Evaluation of China's Environmental Pressures Based on Satellite NO2 Observation and the Extended STIRPAT Model

Yuanzheng Cui, Lei Jiang, Weishi Zhang, Haijun Bao, Bin Geng, Qingqing He, Long Zhang, David G. Streets
2019 International Journal of Environmental Research and Public Health  
In addition, we find that population, per capita gross domestic product, the share of the secondary industry, ambient air pressures, total nighttime light data, and urban road area have a positive impact  ...  In contrast, increases in the normalized difference vegetation index (NDVI), relative humidity, temperature, and wind speed may reduce NO2 pollution.  ...  Conflicts of Interest: The authors declare no conflict of interest. Int. J. Environ. Res. Public Health 2019, 16, 1487  ... 
doi:10.3390/ijerph16091487 fatcat:7ribfyl6fjg5rmkeggdk5mdzde

Carbon Dioxide Exchange between an Undisturbed Old-Growth Temperate Forest and the Atmosphere

D. Y. Hollinger, F. M. Kelliher, J. N. Byers, J. E. Hunt, T. M. McSeveny, P. L. Weir
1994 Ecology  
Air temperature. saturation deficit, and the diffuse PPFD were of lesser. but still significant, influence.  ...  Mean nighttime respiration rates varied between --2 and -7 pmol.m-'.s-l. Nighttime CO, efflux rate roughly doubled with a 10°C increase in temperature.  ...  The leaf area index (LAI) of the stand was estimated from litterfall data.  ... 
doi:10.2307/1939390 fatcat:vja7ubbhj5bbpnibl7wc5hqrs4

Microhabitat Associations for the Threatened Cheat Mountain Salamander in Relation to Early-stage Red Spruce Restoration Areas

Donald J Brown, Lacy E. Rucker, Catherine Johnson, Shane Jones, Thomas K. Pauley
2022 Journal of Fish and Wildlife Management  
We found that soil pH was higher and soil moisture was lower at spruce restoration sites compared to the occupied site, and that light intensity, sub-canopy air temperature, and ground-level air temperature  ...  One goal of the initiative is to increase availability and enhance quality of habitat for wildlife, including the threatened Cheat Mountain salamander Plethodon nettingi.  ...  monitoring of sub-canopy air temperature (°C), ground-level air temperature (°C), and light intensity (lux) using data loggers (restoration site study-only).  ... 
doi:10.3996/jfwm-21-042 fatcat:2jvcfwttmbaqfmgiqsjqkj3nby

Global Urban Climatology
グローバル都市気象学

VARQUEZ Alvin Christopher Galang
2016 JOURNAL OF JAPAN SOCIETY OF HYDROLOGY AND WATER RESOURCES  
Global urban climatology (GUC) is proposed as a subfield of urban climatology. The main focus of GUC is uniform understanding of urban climates across all cities, globally.  ...  universal understanding of the mechanisms underlying the formation of the phenomenon can be established.  ...  (Note: λF were grouped and averaged at 500 nighttime light-adjusted LandScan population data bin intervals).  ... 
doi:10.3178/jjshwr.29.313 fatcat:3qxw3qov65a5xbf27r52o55vna

Spatially explicit assessment of heat health risk by using multi-sensor remote sensing images and socioeconomic data in Yangtze River Delta, China

Qian Chen, Mingjun Ding, Xuchao Yang, Kejia Hu, Jiaguo Qi
2018 International Journal of Health Geographics  
Methods: A human settlement index integrated by nighttime light images, enhanced vegetation index, and digital elevation model data was utilized to assess the human exposure at high spatial resolution.  ...  Heat hazard and vulnerability index were generated by land surface temperature and demographic and socioeconomic census data, respectively.  ...  [13] analyzed mortality in Paris during EHEs in the summer of 2003; results showed that mortality is related to the distribution of high nighttime temperatures generally driven by the enhanced UHI effects  ... 
doi:10.1186/s12942-018-0135-y pmid:29801488 pmcid:PMC5970500 fatcat:ayk4wmtjqzbbln7s7runuygr3a

A MODIS-based Photosynthetic Capacity Model to estimate gross primary production in Northern China and the Tibetan Plateau

Yanni Gao, Guirui Yu, Huimin Yan, Xianjin Zhu, Shenggong Li, Qiufeng Wang, Junhui Zhang, Yanfen Wang, Yingnian Li, Liang Zhao, Peili Shi
2014 Remote Sensing of Environment  
The PCM follows the logic of the light use efficiency model and is only driven by the Enhanced Vegetation Index (EVI) and the Land Surface Water Index (LSWI).  ...  The model parameter (PC max ) of the PCM represents the maximum photosynthetic capacity, which showed a good linear relationship with the mean annual nighttime Land Surface Temperature (LST an ).  ...  A regression analysis of PC max as a function of the ground-observed mean annual daily air temperature (MAT), nighttime air temperature (MAT n , when the solar elevation angle b 0), daytime air temperature  ... 
doi:10.1016/j.rse.2014.03.006 fatcat:kpogplgogvhthlbjqakr4azfnm

Carbon exchange and venting anomalies in an upland deciduous forest in northern Wisconsin, USA

Bruce D. Cook, Kenneth J. Davis, Weiguo Wang, Ankur Desai, Bradford W. Berger, Ron M. Teclaw, Jonathan G. Martin, Paul V. Bolstad, Peter S. Bakwin, Chuixiang Yi, Warren Heilman
2004 Agricultural and Forest Meteorology  
Mean CO 2 , water vapor, and temperature profile measurements were used to improve flux estimates during periods of low turbulence, and were effective for friction velocities (u * ) >0.3 m s À1 .  ...  Turbulent fluxes of carbon, water vapor, and temperature were continuously measured above an upland forest in north central Wisconsin during 1999 and 2000 using the eddy covariance method.  ...  We also extend our appreciation to Dana Carrington for data analysis, and to Tom Steele, Gary Kellner, and Karla Ortman at the Kemp Natural Resources Station, University of Wisconsin, who provided technical  ... 
doi:10.1016/j.agrformet.2004.06.008 fatcat:zejewhqvgzbrdjwy7qhjckgxde

Differences in plant cover and species composition of semiarid grassland communities of central Mexico and its effects on net ecosystem exchange

J. Delgado-Balbuena, J. T. Arredondo, H. W. Loescher, E. Huber-Sannwald, G. Chavez-Aguilar, M. Luna-Luna, R. Barretero-Hernandez
2013 Biogeosciences  
Thus, daytime NEE in low plant cover sites reached light compensation points at lower photosynthetic photon flux density than those from high plant cover sites.  ...  cover sites, and neutral or sources for the high plant cover sites as accounted by daytime and nighttime NEE annual balance.  ...  We thank INIFAP (Sitio Experimental Vaquerias) for allowing the use of their facilities to carry out this study. We thank Paul Duffy for comments and recommendations on a previous version. Also, J.  ... 
doi:10.5194/bg-10-4673-2013 fatcat:7ngl6iks7vbzdcj2s5eop67naq

Causes of interannual variability in ecosystem–atmosphere CO2 exchange in a northern Wisconsin forest using a Bayesian model calibration

Daniel M. Ricciuto, Martha P. Butler, Kenneth J. Davis, Bruce D. Cook, Peter S. Bakwin, Arlyn Andrews, Ronald M. Teclaw
2008 Agricultural and Forest Meteorology  
This research was funded in part by the Office of Science (BER), U.S. Department of Energy Terrestrial Carbon Processes program, grant number DEFG02-03ER63681, through the  ...  Forest Service North Central Experiment Station; Klaus Keller, The Pennsylvania State University Department of Geosciences; and three anonymous reviewers.  ...  This likely reflects enhanced growth caused during periods of warmer than average temperatures in the transitional seasons, but enhanced respiration in the summer months.  ... 
doi:10.1016/j.agrformet.2007.08.007 fatcat:leb5247fffdohcg443qhpa7f4q

The MAPM (Mapping Air Pollution eMissions) method for inferring particulate matter emissions maps at city scale from in situ concentration measurements: description and demonstration of capability

Brian Nathan, Stefanie Kremser, Sara Mikaloff-Fletcher, Greg Bodeker, Leroy Bird, Ethan Dale, Dongqi Lin, Gustavo Olivares, Elizabeth Somervell
2021 Atmospheric Chemistry and Physics  
The input of the inverse model includes a spatially distributed prior emissions estimate and PM measurement time series from instruments distributed across the desired domain.  ...  Mapping Air Pollution eMissions (MAPM) is a 2-year project whose goal is to develop a method to infer particulate matter (PM) emissions maps from in situ PM concentration measurements.  ...  We additionally acknowledge Guy Coulson and Ian Longley from NIWA in Auckland, New Zealand, for their time and efforts contributing to this project, particularly in treating the measurement data.  ... 
doi:10.5194/acp-21-14089-2021 fatcat:ycupzmjkarbazc2sheudbitqoy

The Seasonal and Diurnal Influence of Surrounding Land Use on Temperature: Findings from Seoul, South Korea

Hyungkyoo Kim, Seung-Nam Kim
2017 Sustainability  
Unlike other studies that rely on extracted data from remotely sensed information, this study uses land use data from local GIS and near-ground temperature data from a network of state-run weather stations  ...  This study explores the impact of land use on temperature and how it varies by season and time of day in Seoul, South Korea.  ...  Seung-Nam Kim was involved in data analysis and interpretation of research findings. Conflicts of Interest: The authors declare no conflict of interest.  ... 
doi:10.3390/su9081443 fatcat:jhgey3qwi5h45ewuthteradchy

Evaluation of the Multi-Scale Ultra-High Resolution (MUR) Analysis of Lake Surface Temperature

Erik Crosman, Jorge Vazquez-Cuervo, Toshio Chin
2017 Remote Sensing  
Representativeness errors may also be introduced when attempting to apply satellite skin surface temperature data to estimate bulk lake temperature [10] .  ...  The results of this study highlight the importance of calculating validation statistics on a seasonal and annual basis for evaluating satellite-derived LSWT.  ...  We thank Lars Rudstam and the Cornell Biological Field Station for providing the temperature data for Lake Oneida, and the National Data Buoy Center for hourly temperature data from Lake Michigan.  ... 
doi:10.3390/rs9070723 fatcat:qohmfqdmafakva53j4o3hn5vbu

Quantifying forest net primary production: combining eddy flux, inventory and metabolic theory

ZH Tan, A Hughes, T Sato, YP Zhang, SJ Han, Y Kosugi, M Goulden, XB Deng, M Cao, ZQ Hao, YH Hu, GR Yu (+1 others)
2017 iForest : Biogeosciences and Forestry  
The potential value of our new method as a standard NPP method is high because of the world-wide network on eddy tower and inventory plot, however further data of performance of the new method is needed  ...  The new top-down method combines eddy flux data, climate variables, tree inventory and metabolic theory.  ...  We would like to express thanks to the projects of "Long-term monitoring of forest carbon dynamics in East Asia [EA-FDPN Phase II]", ChinaFLUX, AsiaFLUX, CForBio and LBA for providing the data.  ... 
doi:10.3832/ifor2159-010 fatcat:unqxuru6dreshlxcwpfvn7kw7m
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