Geothermal heat flux into deep caldera lakes Shikotsu, Kuttara, Tazawa and Towada
Geothermal heat flux into deep caldera lakes Shikotsu, Kuttara, Tazawa and Towada
复制标题
流入支笏湖、久多乐湖、田泽湖和十和田湖的地热热通量
DOI：
10.1007/s10201-013-0399-7
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发表时间：
2013
期刊：
影响因子：
1.6
通讯作者：
K. Chikita
中科院分区：
文献类型：
--
作者：
B. Boehrer;R. Fukuyama;K. Chikita
测量了进入四个火山口湖最深沃茨的地热通量。2007年7月至11月的分层期间的温度分布允许量化的收购热。由于其巨大的深度，来自湖床的热量输入与表面的热通量局部分离。总之，可以实现地热输入的直接测量。虽然在所有情况下都可以怀疑地热活动增强，但有两个湖泊（支笏湖和田泽湖）的地热通量为0.29或0.27 W/m2，与其他未受火山活动影响的地区相同，而其他两个湖泊（库塔拉湖和十和田湖）的热输入分别为1或18.6 W/m2。总之，在我们调查的范围内，所有湖泊从地下获得的热量都超过了大陆热通量的平均值。因此，从地面进入湖泊的热通量不受地球内部热量所暗示的温度梯度的支配。其他影响，如深湖水和地下水或地下局部热源的总体温差，提供了更重要的贡献。显然，地下水的流动在将热量输送到湖泊的深层沃茨中起着决定性的作用。
Geothermal heat fluxes into the deepest waters of four caldera lakes were measured. Temperature profiles within the stratification period between July and November 2007 allowed a quantification of the acquired heat. Due to their enormous depth, heat input from the lake bed was locally separated from heat fluxes at the surface. In conclusion, a direct measurement of geothermal heat input could be accomplished. Although enhanced geothermal activity could be suspected in all cases, two lakes showed a geothermal heat flux of 0.29 or 0.27 W/m2(Lake Shikotsu and Lake Tazawa), as found in other regions not affected by volcanism, while both other lakes (Lake Kuttara and Lake Towada) showed a greatly enhanced heat input of 1 or 18.6 W/m2, respectively. In conclusion, within our investigated set, all lakes acquired more heat from the underground than the continental heat flux average. Hence, the heat flux into the lakes from the ground was not dominated by the temperature gradient implied by the inner heat of the earth. Other effects like the general temperature difference of deep lake water and the groundwater or local sources of heat in the underground deliver more important contributions. Obviously the flow of water in the underground can play a decisive role in the heat transport into the deep waters of lakes.
使用多波束回声测深仪评估日本十和田湖水下植被的生物量和分布
影响因子：
1.6
作者：
Kazuki Abukawa;Masumi Yamamuro;Zaal Kikvidze;Akira Asada;Chunhui Xu;Kenichi Sugimoto
通讯作者：
Kenichi Sugimoto