Predictable upwelling and the shoreward transport of planktonic larvae by internal tidal bores

Internal tidal bores have a crucial role in the transport of drifting larvae to marine nearshore populations, a key factor in structuring benthic communities. Shoreward transport of larvae and abrupt surface temperature drops lasting days can be explained by invoking the advection of subsurface cold water to the shore by internal tidal bores. This process is predictable within the lunar cycle and brings deep water to the surface (upwelling) in a direction perpendicular to the coastline.     

Geophysics from triton to the deep blue sea: new quake forecast: north by northwest

Geophysics is closing out the 1980s with a bang. October's Loma Prieta earthquake grabbed the spotlight at this month's American Geophysical Union's annual fall meeting in, of all places, San Francisco; the quake also closed down one of the official hotels, depriving hundreds of the 4500 attendees of rooms. Other hot topics of the late 1980s-Voyager's tour of the outer solar system and the greenhouse effect-got their share of attention as well.     

水稻杂交制种的花期预测及调控途径的研究

根据三系水稻杂交制种和科研实践,分析了三系水稻杂交制种过程中多种导致花期不遇的因素,提出水稻花期预测中比较准确的幼穗剥检法、叶龄余数法等.同时,针对父母本花期不遇给出了秧龄调节法、肥料调节法、水分调节法等调控措施和补救措施,对指导三系水稻制种生产和提高制种量具有重要意义.