Response of the Land‐Atmosphere System Over North‐Central Oklahoma During the 2017 Eclipse
Response of the Land‐Atmosphere System Over North‐Central Oklahoma During the 2017 Eclipse
复制标题
2017 年日食期间俄克拉荷马州中北部陆地大气系统的响应
DOI：
10.1002/2017gl076908
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发表时间：
2018
影响因子：
5.2
通讯作者：
D. Cook
中科院分区：
文献类型：
--
作者：
D. Turner;V. Wulfmeyer;A. Behrendt;T. Bonin;A. Choukulkar;R. Newsom;W. Brewer;D. Cook
2017年8月21日，美国大陆上空发生日食，导致美国大部分地区的太阳辐射迅速减少，随后增加。日食对陆地大气系统的影响被前所未有的详细记录，使用部署在俄克拉荷马州中北部三个地点的独特传感器阵列。观测结果表明，地表的热量和动量湍流通量对太阳辐射的变化反应迅速。感热通量的减少导致200米以下的空气温度降低，整个边界层的湍流运动大幅减少。此外，在边界层中的湍流混合滞后于表面通量的变化，这种滞后依赖于表面以上的高度。感热通量恢复后，湍流运动增强，对流边界层重新建立。
On 21 August 2017, a solar eclipse occurred over the continental United States resulting in a rapid reduction and subsequent increase of solar radiation over a large region of the country. The eclipse's effect on the land‐atmosphere system is documented in unprecedented detail using a unique array of sensors deployed at three sites in north‐central Oklahoma. The observations showed that turbulent fluxes of heat and momentum at the surface responded quickly to the change in solar radiation. The decrease in the sensible heat flux resulted in a decrease in the air temperature below 200 m, and a large decrease in turbulent motions throughout the boundary layer. Furthermore, the turbulent mixing in the boundary layer lagged behind the change in the surface fluxes, and this lag depended on the height above the surface. The turbulent motions increased and the convective boundary layer was reestablished as the sensible heat flux recovered.
影响因子：
25.2
作者：
V. Wulfmeyer;R. Hardesty;D. Turner;A. Behrendt;M. Cadeddu;P. Di Girolamo;P. Schlüssel;J. van Baelen-J.-van-Ba
通讯作者：
V. Wulfmeyer;R. Hardesty;D. Turner;A. Behrendt;M. Cadeddu;P. Di Girolamo;P. Schlüssel;J. van Baelen-J.-van-Ba