Latham John, Gadian Alan, Fournier Jim, Parkes Ben, Wadhams Peter, Chen Jack
National Centre for Atmospheric Research Boulder, CO 80301, USA School of Earth and Atmospheric Sciences, University of Manchester, Manchester M13 9PL, UK
NCAS, SEE, University of Leeds, Leeds, LS2 9JT, UK.
Philos Trans A Math Phys Eng Sci. 2014 Dec 28;372(2031). doi: 10.1098/rsta.2014.0053.
The general principle behind the marine cloud brightening (MCB) climate engineering technique is that seeding marine stratocumulus clouds with substantial concentrations of roughly monodisperse sub-micrometre-sized seawater particles might significantly enhance cloud albedo and longevity, thereby producing a cooling effect. This paper is concerned with preliminary studies of the possible beneficial application of MCB to three regional issues: (1) recovery of polar ice loss, (2) weakening of developing hurricanes and (3) elimination or reduction of coral bleaching. The primary focus is on Item 1. We focus discussion herein on advantages associated with engaging in limited-area seeding, regional effects rather than global; and the levels of seeding that may be required to address changing current and near-term conditions in the Arctic. We also mention the possibility that MCB might be capable of producing a localized cooling to help stabilize the West Antarctic Ice Sheet.
海洋云增亮（MCB）气候工程技术背后的一般原理是，用大量浓度大致均匀的亚微米级海水颗粒播撒海洋层积云，可能会显著提高云的反照率和寿命，从而产生降温效果。本文关注的是对MCB在三个区域问题上可能的有益应用的初步研究：（1）极地冰流失的恢复，（2）发展中飓风的减弱，以及（3）珊瑚白化的消除或减少。主要重点是第1项。我们在此将讨论重点放在与进行有限区域播撒相关的优势、区域影响而非全球影响，以及应对北极当前和近期变化状况可能所需的播撒水平上。我们还提到了MCB可能能够产生局部降温以帮助稳定西南极冰盖的可能性。
