An isoline separating relatively warm from relatively cool wintertime forest surface temperatures for the southeastern United States

J. Wickham; T.G. Wade; K.H. Riitters

首页> 外文期刊>Global and planetary change >An isoline separating relatively warm from relatively cool wintertime forest surface temperatures for the southeastern United States

【24h】

An isoline separating relatively warm from relatively cool wintertime forest surface temperatures for the southeastern United States

机译：等值线，将美国东南部相对温暖的冬季森林表面温度与相对较凉的温度区分开

获取原文

获取原文并翻译 | 示例

掌桥外文数据库（机构版） >>

开具论文收录证明 >>

文献代查 >>

页面导航

摘要
著录项
相似文献
相关主题

摘要

Forest-oriented climate mitigation policies promote forestation as a means to increase uptake of atmospheric carbon to counteract global warming. Some have pointed out that a carbon-centric forest policy may be overstated because it discounts biophysical aspects of the influence of forests on climate. In extra-tropical regions, many climate models have shown that forests tend to be warmer than grasslands and croplands because forest albedos tend to be lower than non-forest albedos. A lower forest albedo results in higher absorption of solar radiation and increased sensible warming that is not offset by the cooling effects of carbon uptake in extra-tropical regions. However, comparison of forest warming potential in the context of climate models is based on a coarse classification system of tropical, temperate, and boreal. There is considerable variation in climate within the broad latitudinal zonation of tropical, temperate, and boreal, and the relationship between biophysical (albedo) and biogeochemical (carbon uptake) mechanisms may not be constant within these broad zones. We compared wintertime forest and non-forest surface temperatures for the southeastern United States and found that forest surface temperatures shifted from being warmer than non-forest surface temperatures north of approximately 36°N to cooler south of 36°N. Our results suggest that the biophysical aspects of forests' influence on climate reinforce the biogeochemical aspects of forests' influence on climate south of 36°N. South of 36°N, both biophysical and biogeochemical properties of forests appear to support forestation as a climate mitigation policy. We also provide some quantitative evidence that evergreen forests tend to have cooler wintertime surface temperatures than deciduous forests that may be attributable to greater evapotranspiration rates.

机译：以森林为导向的减缓气候变化政策促进了造林活动，以此作为增加对大气中碳的吸收以抵消全球变暖的一种手段。一些人指出，以碳为中心的森林政策可能被夸大了，因为它忽视了森林对气候影响的生物物理方面。在温带地区，许多气候模式已经表明，森林往往比草地和农田温暖，因为森林的反照率往往低于非森林的反照率。较低的森林反照率会导致更高的太阳辐射吸收率并增加明显的增暖，而温带地区碳吸收的冷却效应并不能抵消这一变化。但是，在气候模型的背景下对森林变暖潜力的比较是基于热带，温带和北方的粗分类系统。在热带，温带和寒带的宽纬度区域内，气候变化很大，在这些宽广的区域内，生物物理（反照率）和生物地球化学（碳吸收）机制之间的关系可能不是恒定的。我们比较了美国东南部的冬季森林和非森林表面温度，发现森林表面温度从北约36°N处的温度高于非林地表面温度向南约36°N的温度降低。我们的研究结果表明，森林对气候影响的生物物理方面加强了森林对36°N以南气候的影响的生物地球化学方面。在36°N以南，森林的生物物理和生物地球化学特性似乎都可以作为一项减缓气候变化政策来支持造林。我们还提供了一些定量证据，表明常绿森林的冬季地表温度往往比落叶林的冬季地表温度低，这可能是由于蒸散速率较高所致。

著录项

来源
《Global and planetary change》 |2014年第9期|46-53|共8页
作者
J. Wickham; T.G. Wade; K.H. Riitters;
展开▼
作者单位

U.S. Environmental Protection Agency, Office of Research and Development, Environmental Sciences Division, Research Triangle Park, NC 27711, United States;

U.S. Environmental Protection Agency, Office of Research and Development, Environmental Sciences Division, Research Triangle Park, NC 27711, United States;

U.S. Department of Agriculture, Forest Service, Southern Research Station, Research Triangle Park NC 27709, United States;

展开▼
收录信息
原文格式 PDF
正文语种 eng
中图分类
关键词
Afforestation; Albedo; Climate mitigation; MODIS; NLCD; Reforestation;

机译：造林;反照率;缓解气候;MODIS;NLCD;植树造林;

相似文献

外文文献
专利

1. A paradox of cooling winter soil surface temperatures in a warming northeastern United States [J] . Brown Paula J., DeGaetano Arthur T. . Agricultural and Forest Meteorology . 2011,第7期

机译：在美国东北部变暖的冬季土壤表面温度下降的悖论
2. Separating the effects of albedo from eco-physiological changes on surface temperature along a successional chronosequence in the southeastern United States [J] . Juang JY, Katul G, Siqueira M, Geophysical Research Letters . 2007,第21期

机译：在美国东南部沿连续时间序列将反照率与生态生理变化对地表温度的影响分开
3. We had a patient in the intensive care unit undergoing hypothermia at 33°C. The patient was shivering in the upper chest and arms. Our cooling device showed that the temperature was increasing with the shivering, and someone suggested placing warm blankets and a surface warming device on the patient to stop the shivering. How does this device stop shivering? [J] . Sarah L. Livesay Therapeutic hypothermia and temperature management . 2018,第3期

机译：在33°C下，我们在重症监护室内进行了患者。患者在上胸部和臂上发抖。我们的冷却装置表明，温度随着颤抖而增加，有人建议将温热的毯子和患者上的表面加热装置放置在颤抖中。这个设备如何停止发抖？
4. Fifteen Years of Warm-Mix Asphalt in the United States: Overall Implications of Warm-Mix Technologies at Varying Testing Temperatures [C] . Carl V. Pittman, Rabeea W. Bazuhair, Isaac L. Howard, Conference on Asphalt Paving Technology . 2019

机译：美国的热拌沥青混合料十五年：在不同的测试温度下，热拌混合料的总体含义
5. Microenvironment, sweat rate, cooling, and thermal stress in women exercising in Islamic clothing in warm and hot temperatures. [D] . Davis, Jon-Kyle. 2009

机译：在温暖和高温下穿着伊斯兰服装的妇女的微环境，出汗率，冷却和热应激。
6. Climate impacts of U.S. forest loss span net warming to net cooling [O] . Christopher A. Williams, Huan Gu, Tong Jiao 2021

机译：美国森林损失跨度净变暖到净冷却的气候影响
7. The oceans mediate the response of global climate to natural and anthropogenic forcings. Yet for the past 2,000 years — a key interval for understanding the present and future climate response to these forcings — global sea surface temperature changes and the underlying driving mechanisms are poorly constrained. Here we present a global synthesis of sea surface temperatures for the Common Era (ce) derived from 57 individual marine reconstructions that meet strict quality control criteria. We observe a cooling trend from 1 to 1800 ce that is robust against explicit tests for potential biases in the reconstructions. Between 801 and 1800 ce, the surface cooling trend is qualitatively consistent with an independent synthesis of terrestrial temperature reconstructions, and with a sea surface temperature composite derived from an ensemble of climate model simulations using best estimates of past external radiative forcings. Climate simulations using single and cumulative forcings suggest that the ocean surface cooling trend from 801 to 1800 ce is not primarily a response to orbital forcing but arises from a high frequency of explosive volcanism. Our results show that repeated clusters of volcanic eruptions can induce a net negative radiative forcing that results in a centennial and global scale cooling trend via a decline in mixed-layer oceanic heat content. [O] . McGregor, Helen V., Evans, Michael N., Goosse, Hugues, 2015

机译：海洋调节了全球气候对自然和人为强迫的响应。然而，在过去的2,000年中（这是了解当前和未来气候对这些强迫的响应的关键间隔），全球海表温度变化及其潜在的驱动机制受到的约束很有限。在这里，我们提出了一个共同的时期（ce）的全球海面温度的全球综合，该综合来自57个符合严格质量控制标准的海洋重建项目。我们观察到从1到1800 ce的冷却趋势，对于显式测试重建中潜在的偏倚而言，该趋势很稳健。在801至1800 ce之间，表面降温趋势在质量上与地面温度重建的独立合成以及从使用过去外部辐射强迫的最佳估计的气候模型模拟集合推导出的海面温度合成在质量上是一致的。使用单一和累积强迫的气候模拟表明，从801到1800 ce的海洋表面冷却趋势主要不是对轨道强迫的反应，而是爆炸性火山爆发的频繁发生。我们的结果表明，火山喷发的反复簇可引起净的负辐射强迫，这会导致混合层海洋热量降低而导致百年和全球规模的降温趋势。
8. GCM predictions for surface air temperature and precipitation over the southeastern United States. [R] . Grotch, S. L. 1990

机译：GCm预测美国东南部的地面气温和降水。

An isoline separating relatively warm from relatively cool wintertime forest surface temperatures for the southeastern United States

摘要

著录项

相似文献

相关主题

期刊订阅