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DOI | 10.1002/joc.5538 |
Modelling high-latitude summer temperature patterns using physiographic variables | |
Sadoti, Giancarlo1; McAfee, Stephanie A.1; Roland, Carl A.2,3; Nicklen, E. Fleur2; Sousanes, Pamela J.2 | |
2018-08-01 | |
发表期刊 | INTERNATIONAL JOURNAL OF CLIMATOLOGY
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ISSN | 0899-8418 |
EISSN | 1097-0088 |
出版年 | 2018 |
卷号 | 38期号:10页码:4033-4042 |
文章类型 | Article |
语种 | 英语 |
国家 | USA |
英文摘要 | Recent investigations of high-resolution temperature patterns employing dense observational networks have improved our understanding of fine-scale climatic influences on hydrological and ecological processes. Few of these investigations, however, have focused on high-latitude environments. In this studyone of the first to evaluate drivers of fine-scale temperature patterns in a non-glaciated high-latitude environmentwe evaluated physiographic controls on summer temperature while accounting for free-air temperature conditions along a north-south transect of temperature sensors on Mt. Healy, at the eastern edge of Denali National Park and Preserve in Alaska, United States. Although the study was limited to summer, when near-surface temperature inversions are rare, we identified average daily minimum temperature (T-min) lapse rates shallower than -2 degrees C/km over five summers. Lapse rates of average temperature (T-avg) were steeper (-5.3 degrees C/km), but still did not approach the global average lapse rate of -6.5 degrees C/km. We also identified positive effects of solar radiation on both T-min and T-avg, variation in T-min and T-avg lapse rates across a range of synoptic temperature conditions, and variation in T-min lapse rates across terrain convergence values. Finally, we compared relationships between elevation and temperature from transect sensors and a gridded product. Over 15months of comparison, sensor T-avg was 0.6 degrees C cooler than gridded data at similar elevations. Sensor lapse rates were on average 0.5 degrees C steeper than those from gridded data but only significantly so in the cool month of June 2014. These differences highlight the need for additional instrumentation across this remote and topographically variable region to improve accuracy and reduce biases in gridded climate products. |
英文关键词 | Alaska Denali National Park elevation gradient lapse rate microclimate topography |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000440826000019 |
WOS关键词 | AIR-TEMPERATURE ; AMERICAN CORDILLERA ; MOUNTAIN REGIONS ; COMPLEX TERRAIN ; LAPSE RATES ; ALASKA ; CLIMATE ; INVERSIONS ; ELEVATION ; PRECIPITATION |
WOS类目 | Meteorology & Atmospheric Sciences |
WOS研究方向 | Meteorology & Atmospheric Sciences |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/37465 |
专题 | 气候变化 |
作者单位 | 1.Univ Nevada, Dept Geog, 1664 N Virginia St, Reno, NV 89557 USA; 2.Natl Pk Serv, Cent Alaska Network, Fairbanks, AK USA; 3.Natl Pk Serv, Denali Natl Pk & Preserve, Fairbanks, AK USA |
推荐引用方式 GB/T 7714 | Sadoti, Giancarlo,McAfee, Stephanie A.,Roland, Carl A.,et al. Modelling high-latitude summer temperature patterns using physiographic variables[J]. INTERNATIONAL JOURNAL OF CLIMATOLOGY,2018,38(10):4033-4042. |
APA | Sadoti, Giancarlo,McAfee, Stephanie A.,Roland, Carl A.,Nicklen, E. Fleur,&Sousanes, Pamela J..(2018).Modelling high-latitude summer temperature patterns using physiographic variables.INTERNATIONAL JOURNAL OF CLIMATOLOGY,38(10),4033-4042. |
MLA | Sadoti, Giancarlo,et al."Modelling high-latitude summer temperature patterns using physiographic variables".INTERNATIONAL JOURNAL OF CLIMATOLOGY 38.10(2018):4033-4042. |
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