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1.
１９９５年春，美国国家宇航局将发射一颗携带宽视场海洋观测传感器的海洋卫星。宽视场海洋观测传感器是继工作了七年多，于１９８５年停止发送资料的Ｎｉｍｂｕｓ－７海岸带水色扫描仪之后的第一个星载海洋水色传感器，不像作为概念验证性实验的海岸带水色扫描仪那样，宽视场海洋观测传感器被设计用来提供充分精确的光合色素浓度资料以进行海洋初级生产力和生物地球化学定理研究。宽视场海洋观测传感器将常规地每二日一次提供全球复 相似文献
2.
在卫星遥感领域,美国宇航局(NASA)除致力于地球观测系统的多传感器、多学科、多门类综合观测地球的计划实施外,还积极推行专用地球探测卫星计划。这些专用遥感卫星是NASA探测地球计划的一个重要组成部分。 1 宽视场海洋观测传感器(Sea WIFS) SeaWIFS的目的是用于全球海洋水色测量,是海岸带水色扫描仪(CZCS)的后续。SeaWIFS将由轨道科学协会(OSC)发射。其数据卖给NASA。 相似文献
3.
海洋遥感应用研究现状及展望 总被引：2，自引：2，他引：2
从２０世纪７０年代始至今，海洋遥感经历了从探索实验、实验研究到应用研究和业务使用的过程。１９７０～１９７８年主要利用载人飞船搭载实验和利用气象卫星、陆地卫星探测海洋；１９７８～１９８５年主要是对美国发射的海洋卫星（Ｓｅａｓａｔ）和搭载海岸带水色扫描仪（ＣＺＣＳ）的雨云卫星７号（Ｎｉｍｂｕｓ－７）进行实验研究；１９８５年至今为应用研究和业务使用，期间世界上相继发射了多颗海洋卫星，特别是２０世纪最后５年出现了各国竞相发射海洋水色卫星的热潮，已发射和计划发射的卫星见表ｌ。我国也计划在２００１年发射我国… 相似文献
4.
Ｎｉｍｂｕｓ－７卫星上的多通道扫描辐射计─━海岸带水色扫描仪（ＣＺＣＳ），被设计用来提供海洋近表层浮游植物色素浓度和其他与水色有关现象（如悬浮沉积物、有机污染等）的资料。由于自然和人为的排放以及由潮流引起的再悬浮沉积物的影响，对近岸水域ＣＺＣＳ遥感资料的分析存在一定的困难，对于近岸水域应作出慎重的研究，因为此类水域的生物－海洋学状况具有较大变化性。计算时必须对每一种情况作出试验，以便找出卫星辐射率测量与浮游植物色素分布，近岸上升流锋，有机污染以及悬浮沉积物之间的关系．本文阐述和讨论了ＣＺＣＳ资料的处理以及估算近岸水域色素和县浮沉积物浓度的算法． 相似文献
5.
国家海洋局海洋二所免费接收处理美国水色卫星宽视场海洋水色观测资料(SedWiFS)成功后,开始无偿向国内各有关用户发送资料。此前,在我国第一期美国水色卫星宽视场海洋水色观测资料应用培训班上,该所已向来自中科院、国家教委、中央气象局、水利部、国家海洋局等10个部委局和地 相似文献
6.
1998年10月21日,由龚惠兴、童庆禧院士等组成的专家组通过了国家海洋局第二海洋研究所潘德炉研究员领衔,会同国内六家研究单位的专家共同完成的我国免费接收处理美国“海星”号海洋水色卫星宽视场海洋水色观测资料的卫星 相似文献
7.
甲壳胺回收食品加工废水中蛋白质研究 总被引：5，自引：0，他引：5
甲壳胺［１，２］（又叫壳聚糖），是由甲壳质经一系列化工加工后得到的线型聚阳离子化合物。它是一种从富含蛋白质的各种食品加工废水中回收蛋白质的较理想的絮凝剂。这方面的研究，国外有不少报道。如Ｗ．Ａ．Ｂｏｕｇｈ［８，９］报道了甲壳胺在处理食品加工废水中的作用；桥本正惠［３］报道了脱乙酸在６７～７５％之间且粘度（０·４％）大于０．１５Ｐａ·ｓ的甲壳胺用于废水处理时效果好ＦＫｏｏ－ＨｕｎｓＣｈｕｎｇ［７］等报道了甲壳胺与戊二醛联合作用来完成对废水中悬浮物的絮凝脱水；Ｃ．Ｓｅｎｓｔａｄ［６］报道了甲壳胺在处… 相似文献
8.
流式细胞仪样品流速的即时标定及误差分析 总被引：2，自引：0，他引：2
流式细胞仪是进行细胞生物学研究的重要仪器 ,在微型浮游生物的研究中也起着很重要的作用［３］ ,但流式细胞仪测定对进样体积的准确度和精密度往往都有较高的要求。目前的几种商业化流式细胞仪 (如ＢｅｃｋｍａｎＣｏｕｌｔｅｒ的ＥＰＩＣＳＸＬ，ＢｅｃｔｏｎＤｉｃｋｉｎｓｏｎ的ＦＡＣＳＣＡＬＩＢＵＲ，ＢｅｃｔｏｎＤｉｃｋｉｎｓｏｎ的ＬＳＲ，Ｃｙｔｏｍａｔｉｏｎ的ＭｏＦｌｏＢＴＡ，Ｐａｒｔｅｃ＿ＰＡＳ的Ｄａｋｏ＿ＧＡＬＡＸＹ［４］)采用的进样方式主要有两种 ,即针筒式进样和压力式进样。压力式进样是普遍采用的进样方式 ,… 相似文献
9.
互花米草总黄酮(TFS)与生物矿质液(BML)对小鼠血糖的影响 总被引：3，自引：1，他引：3
互花米草（Ｓｐａｒｔｉｎａ ａｌｔｅｒｎｉｆｌｏｒａ）系１９７９年自美国引进的一种生长于海滩潮间带的盐沼植物［１］。互花米草总黄酮（ＴｏｔａｌｆｌａｖｏｎｏｉｄｓｏｆＳｐａｒｔｉｎａ ａｌｔｅｒｎｉｆｌｏｒａ，ＴＦＳ）是从互花米草提取液──生物矿质液（Ｂｉｏｍｉｎｅｒａｌｌｉｑｕｉｄ，ＢＭＬ）［２］中分离得到的一类生物活性物质。大量研究资料表明，黄酮类化合物具有多方面有益的生理效应与药理作用［３］。近年来有文献报道多种传统中药（葛根、淫羊霍、桑叶、黄芪）与一些天然植物（芹菜、大麦）均因含黄酮类物… 相似文献
10.
Ｎｉｍｂｕｓ－７卫星上的多通道扫描辐射计－海岸带水色扫描仪，被设计用来提供海洋近表层浮游植物素浓度和其他与水色有关现象的资料。由于自然和人为的排放以及由潮流引起的再悬浮沉积的影响，对近岸水域遥感资料的分析存在一定的困难，对于近岸水域应作出慎重的研究，因为此类水域的生物－海洋学状况具有较大变化性。 相似文献
11.
Atmospheric correction for China''s coastal water color remote sensing 总被引：14，自引：0，他引：14
INTRODUcrIONMeasurements from satellite have demonstrated that space sensor can be applied to measurethe sPectra of water-leaving radiance and proven that ocean color remote sensing is a powerfultcol for understanding oceanic, biological and physical processes. One sPecial ocean color satel-lite heaStar was successfully launched in August l997. It has brought to oceanOgraphers a wel-comed and improvd renewal of the ocean color of CZCS, VHRSR and arS. ffeaWiFS con-tributes much bette… 相似文献
12.
Study on detection of coastal water environment of China by ocean color remote sensing 总被引：11，自引：1，他引：11
ＳＡＴＥＬＬＩＴＥＰＲＯＧＲＡＭＳＦＯＲＣＯＡＳＴＡＬＷＡＴＥＲＤＥＴＥＣＴＩＯＮＳｉｎｃｅｔｈｅ 1 980ｓ,ｇｒｅａｔａｔｔｅｎｔｉｏｎｈａｓｂｅｅｎｐａｉｄｔｏｔｈｅａｄｖａｎｃｅｄｒｅｍｏｔｅｓｅｎｓｉｎｇｔｅｃｈｎｉｑｕｅｉｎＣｈｉｎａ ,ｅｓｐｅｃｉａｌｌｙｔｏｔｈｅｄｅｖｅｌｏｐｍｅｎｔｏｆｓａｔｅｌｌｉｔｅｐｒｏｇｒａｍｓｆｏｒｃｏａｓｔａｌｗａｔｅｒｅｎｖｉｒｏｎｍｅｎｔ.Ｔｗｏｏｃｅａｎｃｏｌｏｒｃｈａｎｎｅｌｓａｄｄｅｄｔｏｔｈｅｆｉｒｓｔｒｅｍｏｔｅｓｅｎｓｉｎｇｓａｔｅｌｌｉｔ… 相似文献
13.
离水辐射非朗伯特性的Monte Carlo模拟及分析 总被引：12，自引：2，他引：10
水体光场的非朗伯特性(二向性)是目前水色反演算法中的误差因素之一。随着新一代高精度水色遥感器的发射,原来的许多次要因素已变得不可忽略。为研究水体光场的非朗伯特性,首先建立了一个三维MonteCarlo海洋光学模型,并利用国际上提出的7个海洋光学标准问题中的4个对模型的正确性进行了检验;在此基础上,模拟了不同太阳天顶角、体成分等参数对离水辐射率的方向特性的影响。模拟结果表明,在一定的遥感器-太阳-像元几何条件下,同一水体的光场二向性带来的离水辐射率变化可能大于已有的业务化水色大气修正算法反演高水辐射率的误差。模拟结果对水色遥感中正确进行现场数据获取及遥感与地面数据比对有一定的意义。 相似文献
14.
我国海区SeaWiFS资料大气校正 总被引：13，自引：1，他引：13
利用光谱辐射传输理论，结合海上同步实测资料，开发出我国海区SeaWiFS资料大气校正模型。经卫星资料处理结果比对，本模型在一类水体，基本消除了412nm和443nm波段离水辐射率小于0的现象；在二类水体，利用临近一类水体的大气条件进行了有效的大气校正；同时建立了670nm,765nm,865nm波段的大气校正模型，这三个面适用于高浓度悬浮泥沙的信息提取。本模型用于处理我国海区的SeaWiFS资料比美国NASA模型更适合我国海区特定的大气和海洋环境，为SeaWiFS资料海洋水色信息提取和我国海洋一号（HY－1）及风云一号（FY－1C）卫星资料的大气校正研究提供了技术基础。 相似文献
15.
Are trends in SeaWiFS chlorophyll time-series unusual relative to historic variability 总被引：1，自引：0，他引：1
For selected locations in the Atlantic and Pacific Ocean, we compared surface ocean chlorophyll time series extracted from SeaWiFS imagery from 1997–2004 with the results of an ocean coupled circulation and biogeochemical model covering the period 1958–2004. During the 1997–2004 time period, linear trends in model and satellite time series were significantly correlated at most of the 44 sites we studied. Eleven sites were selected for further study, and we used the longer time series of the model to assess whether trends observed during the SeaWiFS period at these 11 sites were unusual in relation to those observed over the longer historical period covered by the model. The results show that the trends observed during the SeaWiFS period were not unusual and fell well within the range in magnitude of linear trends observed in other 8-year periods of model output. This result implies that the SeaWiFS satellite ocean color time series is not yet sufficiently long, on its own, to directly observe any long term changes in phytoplankton chlorophyll that may be occurring in the surface waters of the open ocean as a result of increased ocean stratification linked to global climate changed. 相似文献
16.
After many years＇ endeavor of research and application practice, the ocean color remote sensing in China has been growing into a new technique with valuable practicality from its initiate stage of trial research. With the aim of operational service, several kinds of ocean color remote sensing application systems have been developed and realized the long-term marine environmental monitoring utilizing the real-time or near real-time satellite and airborne remote sensing data. New progresses in the technology and application of ocean color remote sensing in China are described, including the research of key techniques and the development of various application systems. Meanwhile, according to the application status and demand, the prospective development of Chinese ocean color remote sensing is brought forward. With Chinese second ocean color satellite （ HY-1 B） orbiting on 11 April 2007 and the development of airborne ocean color remote sensing system for Chinese surveillance planes, great strides will take place in Chinese ocean color remote sensing application with the unique function in marine monitoring, resources management and national security, etc. 相似文献
17.
The algorithms of extracting chlorophyll-a(Chl-a) concentration have been established for Chinese moderate resolution imaging spectrometer(CMODIS) mounted on Shenzhou-3 spaceship launched on 25 March 2002.The CMODIS is an ocean color sensor with 30 visible channels and 4 infrared channels,much different from other ocean color satellites and needs new algorithms to process data.Three models of Chl-a concentration were established based on Chl-a data retrieved from sea-viewing wide field-of-view sensor(SeaWiFS),with the average relative errors of 26.6%,24%.0% and 33.5%,respectively.This practical and economic approach can be used for developing the algorithms of Chinese ocean color and temperature sensor(COCTS) on the satellite Haiyang-1 to derive the Chl-a concentration concentration distribution.The applicability of the algorithms was analyzed using some in situ measurements.Suspended sediment is the main factor influencing the accuracy of the spectral ratio algorithms of Chl-a concentration.The algorithms are suitable to using in the regions where suspended sediment concentrations(SSC) are less than 5 g/m3 under the condition of relative error of Chl-a concentration retrieval within 35%.High concentration of suspended sediment leads to the overestimate remote sensing retrieval of concentration of Chl-a,while low-middle SSCs lead to the low Chl-a concentration values using the spectral ratio algorithms.Since the accuracy of Chl-a concentration by the spectral ratio algorithms is limited to waters of Case 2,it is necessary to develop semi-analytical models to improve the performance of satellite ocean color remote sensing in turbid coastal waters. 相似文献
18.
A. A. Vetrov 《Oceanology》2008,48(1):33-42
New maps of the mean monthly distribution of chlorophyll and the primary production in the Kara Sea were compiled using joint processing of CZCS (1978–1986), SeaWiFS (1998–2005), and MODIS (2002–2006) satellite data and field measurements. The annual primary production of phytoplankton is estimated at 22.3 × 106 t of C per year or 70 mg of C/m2 per day. The results of the calculations of the organic carbon budget in the Kara Sea are presented. 相似文献
19.
The data of the color satellite ocean scanners SeaWiFS and MODIS-Aqua provide evidence that a sharp increase in the backscattering
coefficient of the suspended particles occurred within a considerable part of the Barents Sea during the last decade in July–September.
Judging from all the indications, this increase can be attributed to the coccolithophorid bloom. In 2004, we were able to
directly substantiate this attribution. Water samples for determining the phytoplankton concentration were collected in the
course of observations from onboard the R/V Professor Stokman in the western Barents Sea during the fast growth of the backscattering coefficient of the suspended particles according
to the satellite data. They revealed the high concentration of the coccolithophorids and coccoliths. The satellite data indicate
the strong variability of the areas of the bloom in time and space. We were able to show the interrelation of the backscattering
coefficient of the suspended particles and the sea surface temperature. 相似文献
20.
The authors propose to treat the structure of the sea surface images from the ocean color scanners (OCS) as a complex integrated
indication of the state of the marine environment. Supposedly, such an approach will make current the information on the water
environment processes hidden in the spectral-radiance patterns of arbitrary shapes. They are typical of inland seas, straits,
and other transition areas but attract no attention due to recognition difficulties. The authors give preliminary estimates
of the repeatability of mesoscale structures found from data of the OCSs SeaWiFS and MODIS for the period of 1998–2007 in
the oceanologically diverse Caspian Sea regions. The authors’ approach is shown to be useful for studying the long-term variability
of marine aquatic areas from the satellite data archives. 相似文献