A Note on Reviving the Goddard Satellite-Based Surface Turbulent Fluxes （GSSTF） Dataset

Accurate sea surface flux measurements are crucial for understanding the global water and energy cycles. The oceanic evaporation, which is a major component of the global oceanic fresh water flux, is useful for predicting oceanic circulation and transport. The global Goddard Satellite-based Surface Turbulent Fluxes Version-2 (GSSTF2; July 1987--December 2000) dateset that was officially released in 2001 has been widely used by scientific community for global energy and water cycle research, and regional and short period data analyses. We have recently been funded by NASA to resume processing the GSSTF dataset with an objective of continually producing a uniform dataset of sea surface turbulent fluxes, derived from remote sensing data. The dataset is to be reprocessed and brought up-to-date (GSSTF2b) using improved input datasets such as a recently upgraded NCEP/DOE sea surface temperature reanalysis, and an upgraded surface wind and microwave brightness temperature V6 dataset (Version 6) from the Special Sensor Microwave Imager (SSM/I) produced by Remote Sensing Systems (RSS). A second new product (GSSTF3) is further proposed with a finer temporal (12-h) and spatial (0.25^ox0.25^o) resolution. GSSTF2b (July 1987--December 2008) and GSSTF3 (July 1999--December 2009) will be released for the research community to use by late 2009 and early 2011, respectively.     

黔中开阳磷矿沉积区震旦纪陡山沱期定量岩相古地理重建*

磷矿的沉积和成矿与成磷期的古地理环境密切相关。本文首次将“单因素分析多因素综合作图法”运用于开阳地区震旦纪陡山沱期沉积型磷矿床的成矿分析和找矿预测上。通过选取陡山沱组及其各岩性段的地层厚度及磷矿层品位作为单因素,确定开阳地区古地理格局;结合地层岩性组合、沉积特征等多因素综合分析,恢复开阳地区成矿期沉积环境,编制陡山沱早期、中期和晚期岩相古地理图。根据定量岩相古地理重建结果,认为开阳地区陡山沱期整体处于南靠黔中古陆、地势南高北低、局部地形复杂的滨岸海滩沉积环境,其中临滨带为最有利成矿带,局部地形变化也会造成矿层厚度、品位的差异;矿层受到的水流冲蚀、暴露、淋滤及再沉积作用是导致矿石品位显著提升的关键因素。通过定量岩相古地理学精确还原成矿期古地理环境、解析多期次沉积成矿过程,对于确定磷矿控矿因素、构建找矿预测模型和预测矿体空间位置具有重要意义。     

南极长城站至莫斯科和伊尔库茨克路径上时延的测量与传播路径研究

本文介绍了利用在南极长城站接收来自ＲＷＭ（莫斯科）和ＲＩＤ（伊尔库茨克）台的授时信号的无线电波时延的测量方法，并依据１９９１年４月至１９９１年９月所测量的传播时延数据分析了电波传播路径。说明了沿长、短大圆路径的传播时段。判定存在着非大圆路径传播并阐明了关于非大圆路径传播的一些变化规律。对非大圆路径发生的条件进行了探讨     

湘鄂赣二叠纪岩相古地理研究

湘鄂赣二叠纪沉积盆地是在华南陆块基础上发育而成,具有扬子克拉通北缘被动大陆边缘盆地、扬子克拉通盆地、湘赣板内拉张盆地和华夏克拉通边缘盆地等四类。根据古暴露等标志,建立了各类盆地的沉积层序,并进行了区域对比。在此基础上,本文着重运用层序地层编图法编制了湘鄂赣二叠纪岩相古地理图,深化了该区岩相古地理研究,详细建立了沉积体系域模式和岩相古地理演化特点和控制因素。     

合肥市夏季热岛特征研究

根据2002牟夏季高温期间合肥市城市小气候考察的资料，分析了合肥市夏季城市热岛特征以及热岛强度的历史变化。结果表明：1）合肥市夏季热岛强度的日变化与冬季明显不同，夏季晴天一天中热岛强度只出现一个峰值，其基本特征与Oke提出的理想状态下的城市热岛强度日变化的模式曲线非常相似，而冬季与高纬地区的加拿大卡尔加里城市的热岛强度日变化特征接近。这反映了冬、夏两季人类活动、能源消耗量的不同；2）随着城市范围的扩大和城市绿化工程的实施，合肥市热岛面积、分布形状有了一定的改变，但主要分布特征和强度基本没有变化。     

气象服务在促进内蒙古政策性农业保险事业发展中的作用

文章在分析国内外农业保险发展现状的基础上,结合内蒙古农业气象观测站网建设和气象为农服务业务开展现状,阐述了气象服务在农业保险业务发展中的作用和优势,为我区各级气象部门开展政策性农业保险服务业务提供了思路。     

地震折射波的虚拟射线理论及其应用

本文提出了一种地震折射液的虚拟射线理论,根据该理论,只要已知地表层的速度,即可直接由折射波信息提取地震参数,从而可实现折射界面的反演。 文中通过实际介质模型的计算机实验结果,验证了该理论的正确性。     

近海污损生物的调查方法

近海海区污损生物调查有浮标挂板法和海上设施（浮标及其锚碇系统，Ｍａｒｅｘ水文浮标，移动式钻井平台和固定式生产平台）采样法。由于近海海区污损生物调查工作的特殊性和艰难性，笔者提出了利用已有的海上设施，尤其是固定式平台来积累近海污损生物资料，以便进行生态学研究。     

基于HYCOM再分析数据研究琉球海流的形成与起源

The origin of the Ryukyu Current(RC) and the formation of its subsurface velocity core were investigated using a 23-year(1993–2015) global Hybrid Coordinate Ocean Model(HYCOM) dataset. The volume transport of the RC comes from the Kuroshio eastward branch(KEB) east of Taiwan and part of the North Pacific Subtropical Gyre(pNPSG). From the surface to 2 000 m depth, the KEB(p-NPSG) transport contributes 41.5%(58.5%) to the mean total RC transport. The KEB originally forms the subsurface velocity core of the RC east of Taiwan due to blockage of the subsurface Kuroshio by the Ilan Ridge(sill depth: 700 m). Above 700 m, the Kuroshio can enter the East China Sea(ECS) over the Ilan Ridge, meanwhile, the blocked Kuroshio below 700 m turns to the right and flows along the Ryukyu Islands. With the RC flowing northeastward, the p-NPSG contribution strengthens the subsurface maximum structure of the RC owing to the blockage of the Ryukyu Ridge. In the surface layer, the pNPSG cannot form a stable northeastward current due to frequent disturbance by mesoscale eddies and water exchange through the gaps(with net volume transport into ECS) between the Ryukyu Islands.     

地面总辐射的异常减少对气候影响的数值试验

在与实际台风场近似一致的环境流场条件下，应用柱会标中的正压无辐散模式，讨论了台风中扰动的稳定性问题。研究表明，台风暖心结构的台风外围适当强度的冷空气活动有利限台风中扰动发展，且台风愈强，台风中扰动愈易发展。