基于短时间序列重力观测数据的潮汐改正方法

对于没有长期连续潮汐观测站和无精密潮汐模型的地区,研究高精度潮汐改正方法具有重要意义。给出了基于短时间序列重力观测数据的高精度潮汐改正方法,并利用全球动力学计划中TIGOConcepcion、Kamio-ka和Hsinchu三个台站的超导重力观测数据对该方法进行了试验分析。研究结果表明,利用一天或数天重力观测数据可建立高精度潮汐模型,其振幅因子和相位延迟解算精度分别优于0.01和0.5°,潮汐改正精度可以达到μGal量级,验证了该方法的正确性和有效性。本文方法为无精密潮汐模型区域的潮汐改正提供了新的途径。     

潮汐改正对高精度绝对重力测量成果的影响

潮汐是影响高精度绝对重力测量的重要因素之一。文章对绝对重力测量中,采用不同的潮汐改正方法后的结果进行了分析和比较。结果显示潮汐对绝对重力测量成果影响明显;采用理论计算改正潮汐影响的成果内符合精度优于其他方法。该结论对于高精度重力测量具有一定的参考意义和研究意义。     

海洋潮汐负荷对精密单点定位的影响研究

在全球范围内选取地处内陆、沿海和岛屿的85个国际GNSS服务(IGS)测站,对其一天的观测数据进行无海洋潮汐改正和加入GOT4.8海洋潮汐改正模型两种解算,分析了海洋潮汐负荷对全球不同地理区域IGS测站精密单点定位(PPP)精度的影响.结果表明:岛屿测站受海洋潮汐负荷的影响范围最广,改正量最大.加入海洋潮汐改正后,约9...     

海岛礁相对重力测量的潮汐影响

着重分析固体潮模型、潮汐因子的选取和海洋负荷潮的求定,并利用ETGTAB模型数据详细计算了相对重力测量中的潮汐改正,说明在近海和岛屿地区进行高精度海岛礁相对重力测量时,必须考虑精确的固体潮和海洋负荷潮改正,从而提高相对重力测量的联测精度。     

重力计算中的潮汐改正分析

详细介绍了重力固体潮汐改正的来源和计算公式,针对潮汐因子的取值进行了分析讨论,同时就海洋负荷潮汐模型对重力潮汐的影响展开阐述并给出简算公式,最后得出,不同等级的重力测量计算采用相应的计算公式,其计算精度为±2×10-8 ms-2。     

南极中山站重力潮汐观测的海潮负荷效应

综合分析了LaCoste-Romberg(LCR)ET21高精度弹簧重力仪1998年12月26日至2000年1月9日在南极中山站的重力潮汐观测资料，采用目前普遍使用的Schwiderski、Csr3.0和Fes96.2全球海潮模型研究中山站重力潮汐观测的海潮负荷改正问题。结果表明在南极地区，目前的海潮模型存在较大的不确定性，还不足以精密确定该区域的海潮负荷改正。经海潮改正后，重力潮汐观测结果与潮汐理论值之间还存在比较大的差异，观测的周日（01）和半日（M2）潮波重力振幅因子与相应的理论值之间的平均偏差分别为3．8％和7．8％。南极地区附近海域海水的变化半导致该地区海潮负荷响应非常明显的季节性系统变化。     

不同固体潮改正公式及国家重力网的统一

本文讨论了不同的潮汐公式,及其引起的重力测量计算成果不一致的问题,计算了当潮汐改正公式不统一时,对我国范围内绝对重力测量、相对重力测量、重力仪长基线格值因子标定、重力仪短基线周期误差标定及物探重力控制测量成果的影响,分析了我国85重力基本网所选取的绝对重力控制点之间的一致性、控制点与我国85网相对联测平差结果的一致性、以及85网与我国一等重力控制同之间的一致性问题。最后,为统一我国重力控制测量成果提出了一些建议。     

FG5绝对重力仪观测数据的实测重力潮汐改正

基于中国计量科学研究院北京昌平院区的超导重力仪iGrav-012实测重力潮汐数据,以FG5绝对重力仪为例研究了绝对重力观测中的实测潮汐改正问题,分析了用高精度超导重力仪获得的实测合成重力潮汐与理论合成重力潮汐间的差异。并采用iGrav-012超导重力仪和FG5X-249绝对重力仪两种实测数据对实测潮汐改正效果进行了验证。结果表明, FG5绝对重力仪中用的理论合成重力潮汐在考虑海潮重力影响后的结果与实测合成重力潮汐之差在1μGal之内,因此理论合成重力潮汐经过海潮重力影响改正后的结果可满足绝对重力观测精度要求,从观测精度来讲,无需对绝对重力的实测数据实施潮汐改正即可满足绝对重力观测的精度要求。但是FG5X-249绝对重力观测数据的潮汐改正结果表明,不同的潮汐改正方法对绝对重力观测值的影响不同,但这种影响较小,在0.1μGal的量级,因此建议只在高精度绝对重力观测中考虑实测重力潮汐改正。     

南极地区的重力固体潮观测与研究

研究了三台高精度LCR弹簧重力仪 (G5 89,ET2 0和ET2 1 )在南极长城站和中山站的重力潮汐数据 ,在武汉国际重力潮汐基准系统中确定了该地区的重力潮汐参数。研究了海潮负荷问题 ,经海潮改正后的观测结果与理论值间存在较大差异 ,说明海潮模型的不确定性。讨论了气压和温度变化对重力观测的影响。结果表明 ,气压重力导纳值随信号频率增加呈明显的下降趋势 ,可能存在“反变气压计”效应 ,而温度重力的影响主要集中在长周期频段。     

海空重力测量平台倾斜改正修正模型

针对现行海空重力测量平台倾斜改正模型存在的近似性问题,提出了顾及地球扰动重力和科里奥利（Coriolis）加速度两个水平分量影响的平台倾斜改正修正模型,从理论上论证了使用修正模型的合理性,通过数值计算评估了使用近似模型可能带来的误差影响量值,同时使用实际观测数据验证了修正模型的有效性,为修改完善海空重力测量作业标准和数据处理模型提供了必要的理论支撑。     

BOOK REVIEWS

Book review in this aticle:
HISTORICAL DEVELOPMENT OF PHOTOGRAMMETRIC METHODS AND INSTRUMENTS. By T. J. Blachut and K. B. R. Burkhardt.
YORKSHIRE FROM THE AIR. Photographs by Aerofilms .
EDM TRAVERSES: MEASUREMENT, COMPUTATION AND ADJUSTMENT. By R. G. Bird.
NON-TOPOGRAPHIC PHOTOGRAMMETRY. Second Edition. Edited by H. M. Karara.
THREE DIMENSIONAL APPLICATIONS IN GEOGRAPHICAL INFORMATION SYSTEMS. Edited by J. Raper.
THE INTERDISCIPLINARY ROLE OF SPACE GEODESY. Edited by I. Mueller and S. Zerbini.
THE EMERGING PAST. AIR PHOTOGRAPHY AND THE BURIED LANDSCAPE. By R. [P.] Whimster.
LAND INFORMATION AND REMOTE SENSING FOR RENEWABLE RESOURCE MANAGEMENT IN SUB-SAHARAN AFRICA. By F. FALLOUX.
SATELLITE MONITORING OF THE EARTH. By K.-H. Szekielda.
AN ALBUM OF MAP PROJECTIONS. By J. P. Snyder and P. M. Voxland.
THE CHANGING FACE OF BRITAIN—FROM THE AIR. By L. Gardiner.
MAP COMPILATION AND REVISION IN DEVELOPING AREAS: TEST OF LARGE FORMAT CAMERA IMAGERY. By J. Rollin and I. J. Dowman.
CARTOGRAPHIC DESIGN AND PRODUCTION. By J. S. Keates.
THE ASSOCIATION FOR GEOGRAPHIC INFORMATION YEARBOOK 1989. Edited by P. J. Shand and R. V. Moore.     

BOOK REVIEWS

Book review in this aticle:
THEORY AND APPLICATIONS OF OPTICAL REMOTE SENSING. Edited by G. ASRAR.
TERRAIN MODELLING IN SURVEYING AND CIVIL ENGINEERING. Edited by G. P etrie and T. J. M. K ennie .
THE FOUR FACES OF FOURCADE. By C. D. S torrar .
WALES FROM THE AIR. Photographs by Aerofilms . Foreword by J. M orris . Captions by S. A cland .
DEVELOPMENTS IN FOUR-DIMENSIONAL GEODESY. Selected papers of the Ron S. Mather Symposium on Four-Dimensional Geodesy, Sydney, Australia, March 28–31, 1989. Edited by F. K. B runner and C. R lzos .
EUROPEAN SPACE DIRECTORY 1990. Fifth edition. Sponsored by Eurospace. Edited by D. S hjrvanian .
REMOTE SENSING OF BIOSPHERE FUNCTIONING. Edited by R. J. H obbs and H. A. M ooney .
IMAGE CLARITY: HIGH-RESOLUTION PHOTOGRAPHY. By J. B. W illiams .
MAP PROJECTIONS: THEORY AND APPLICATIONS. By F. P earson .
KARTENNETZENTWURFSLEHRE: GRUNDLAGEN UND ANWENDUNGEN. By E. K untz .
THE LIFE OF A PHOTOGRAPH. By L. E. K eefe and D. I nch .
SUBMINIATURE PHOTOGRAPHY. By W. W hite .
THE ASSOCIATION FOR GEOGRAPHIC INFORMATION YEARBOOK 1990. Edited by M. J. F oster and P. J. S hand .
A GUIDE TO REMOTE SENSING: INTERPRETING IMAGES OF THE EARTH. By S. A. D rury .
TASCHENBUCH ZUR FERNERKUNDUNG. Edited by F.-W. S trathmann .     

BOOK REVIEWS

Book Reviewed in this article: PROCEEDINGS: SPACE IMAGERY AND NEWS GATHERING FOR THE 1990s: SO WHAT? SYMPOSIUM ON FOREIGN POLICY AND REMOTE SENSING. Edited by R. A. MCDONALD. AN INTRODUCTION TO IMAGE PROCESSING. By A. Marion . DIGITALE BILDVERARBEITUNG: ANWENDUNG IN PHOTOGRAMMETRIE, KAR-TOGRAPHIE UND FERNERKUNDUNG. Second edition. Edited by H.-P. Bähr and T. Vögtle . INTRODUCTION TO REMOTE SENSING. By A. P. Cracknell and L. W. B. Hayes . DESIGN OF MISSION OPERATIONS SYSTEMS FOR SCIENTIFIC REMOTE SENSING. By S. D. Wall and K. W. Ledbetter . EARTH'S NATURE FROM SPACE–A STUDY OF THE NATURAL RESOURCES OF THE EARTH USING SATELLITE DATA. Edited by N. P. Kozlov . MARTIN HOTINE: DIFFERENTIAL GEODESY. Edited with commentaries by J. Zund . GRUNDLAGEN DER GEO-INFORMATIONSSYSTEME. BAND 1. HARDWARE, SOFTWARE UND DATEN. By R. Bill and D. Fritsch . REMOTE SENSING GEOLOGY. By R. P. Gupta . RAUMBEZOGENE INFORMATIONSSYSTEME. Second edition. By W. Göpfert . DIGITAL PHOTOGRAMMETRIC SYSTEMS. Edited by H. Ebner , D. Fritsch and C. Heipke . APPLICATIONS OF REMOTE SENSING IN ASIA AND OCEANIA–ENVIRONMENTAL CHANGE MONITORING. Edited by S. Murai . REMOTE SENSING OF FOREST RESOURCES: THEORY AND APPLICATION. By J. A. Howard . OBTENÇÃO E USO DE FOTOGRAFIAS AÉREAS DE PEQUENO FORMATO. By A. A. Disperati . EINKAUFSFÜHRER FÜR DAS VERMESSUNGSWESEN. Compiled by B. Harzer . ARCHAEOLOGICAL PROSPECTING AND REMOTE SENSING. By I. Scollar , A. Tabbagh , A. Hesse and I. Herzog . TEST ON ORTHOPHOTO AND STEREO-ORTHOPHOTO ACCURACY. By G. Ducher . MULTILINGUAL DICTIONARY OF REMOTE SENSING AND PHOTOGRAMMETRY: ENGLISH-FRENCH-BENGALI. English to Bengali translation by G. B. Das . AN ILLUSTRATED RECORD OF ORDNANCE SURVEY IN IRELAND. COORDINATE SYSTEMS AND MAP PROJECTIONS. Second edition. By D. H. Maling . PROCEEDINGS RESOURCE TECHNOLOGY 90: SECOND INTERNATIONAL SYMPOSIUM ON ADVANCED TECHNOLOGY IN NATURAL RESOURCES MANAGEMENT, NOVEMBER 12–15, 1990, WASHINGTON, D.C., USA. Edited by G. J. Buhyoff .     

BOOK REVIEWS

Book Reviewed in this article:
REMOTE SENSING: PRINCIPLES AND INTERPRETATION. By F. F. S abins .
BIBLIOGRAPHIA CARTOGRAPHICA, Volume 5 (1978). Edited by L. Z ögner .
ELEMENTARY AIR SURVEY. By W. K. K ilford .
MAPPING FROM AERIAL PHOTOGRAPHS. By C. D. B urnside .
MAPS FOR AMERICA. By M. M. T hompson .
ANALYTICAL PHOTOGRAMMETRY. By S. K. G hosh .
HANDBOOK OF NON-TOPOGRAPHIC PHOTOGRAMMETRY. Edited by H. M. K arara .
URBAN SURVEYING AND MAPPING. By T. J. B lachut , A. C hrzanowski and J. H. S aastamoinen .
THE PUFFIN BOOK OF PHOTOGRAPHY. By C. W right .
MAPS AND AIR PHOTOGRAPHS. By G. C. D ickinson .     

BOOK REVIEWS

Book Reviewed in this article:
THE GEOGRAPHER AS A MAP-MAKER. By A. H odgkiss .
ARCHITECTURAL PHOTOGRAMMETRY. By R. W. A. D allas .
BIBLIOGRAPHIA CARTOGRAPHICA Volume 4 (1977). Edited by L. Z ögner .
PRINCIPLES OF SURVEYING. By J. G. O lliver and J. C lendinning .
THE ELEMENTS OF ASTRONOMY FOR SURVEYORS. By J. B. M ackie .
JOURNËE D'ËTUDE SUR LA STËRËO-ORTHOPHOTOGRAPHIE.
THE NAZI CONNECTION. By F. W. W interbotham .
AERIAL ARCHAEOLOGY. Edited by D. A. EDWARDS and C. R. P artridge .
PHOTOGRAPHY BY INFRARED. ITS PRINCIPLES AND APPLICATIONS. By H. Lou G ibson .     

BOOK REVIEWS

Book reviews in this article:
PHOENIX NI 12-7 EXPERIMENTAL 1 : 250000 SCALE SPACE PHOTOMAPS.
PHOTOMAP TECHNIQUES.
NEW HORIZONS IN COLOR AERIAL PHOTOGRAPHY.
SIMPLE PHOTOGRAMMETRY. By J. C. C. W illiams .
REMOTE SENSING WITH SPECIAL REFERENCE TO AGRICULTURE AND FORESTRY.
PHOTOMICROGRAPHY. A COMPREHENSIVE TREATISE. By R. P. L oveland .
INTERNATIONAL YEARBOOK OF CARTOGRAPHY (VOL. IX, 1969, and VOL. X, 1970). Editor K. F renzel
PROCEEDINGS OF THE ITC POST-CONGRESS SEMINAR. Editors J. K ure and D. A. T ait .
A PROCEDURE FOR ANALYTICAL BLOCK TRIANGULATION. By K. K ubik .
A COMPUTER PROGRAMME FOR ANALYTICAL BLOCK TRIANGULATION. By K. K ubik , B. K unji and J. K ure .
CALCULATION OF ORTHOGONAL MATRICES. By M. T ienstra .
OPTICAL FUNDAMENTALS OF UNDERWATER PHOTOGRAPHY. By G. T. M c N eil .     

BOOK REVIEWS

Book reviews in this article:
ELEMENTARY AIR SURVEY. By W. K. K ilford .
PLANE SURVEYING. By J. A. S andover .
CARTOGRAPHIC SYMPOSIUM EDINBURGH 1962. Editor, G. P etrie .
EXPERIMENTS ON POINT SIGNALISATION (T echnical P ublication .
M ajor -G eneral R. L l . B rown , c.b., c.b.e., m.a., f.r.i.c.s. .     

BOOK REVIEWS

Book Review in this article:
KENYA FROM SPACE: AN AERIAL ATLAS. Edited by D epartment of R esource S urveys and R emote S ensing (K enya ) and C entre de R echerche , d 'E changes et de D ocumentation U niversitaire (F rance ).
NAPLIB DIRECTORY OF AERIAL PHOTOGRAPHIC COLLECTIONS IN THE UNITED KINGDOM 1993. Produced by the N ational A ssociation of A erial P hotographic L ibraries .
THEORY OF RECONSTRUCTION FROM IMAGE MOTION. By S. M aybank .
EARTH OBSERVATION REMOTE SENSING: SURVEY OF MISSIONS AND SENSORS. By . J. K ramer .
GLOBAL POSITIONING SYSTEM: THEORY AND PRACTICE. By B. H ofmann -W ellenhof , H. L ichten-egger and J. C ollins .
GEOGRAPHIC INFORMATION SYSTEMS. By T. B ernhardsen .
SENSORS: A COMPREHENSIVE SURVEY. Edited by W. G öpel , J. H esse and J. N. Z emel . VOLUME 6: OPTICAL SENSORS. Edited by E. W agner , R. D ändliker and K. S penner .
MODELLE UND ALGORITHMEN FÜR DAS FACETTEN-STEREOSEHEN. By M. W eisensee .
FUNDAMENTALS OF SPATIAL INFORMATION SYSTEMS. By R. L aurini and D. T hompson .
HISTORIC LANDSCAPES OF BRITAIN FROM THE AIR. Edited by R. G lasscock .
OPTICAL METHODS IN ENGINEERING METROLOGY. Edited by D. C. W illiams .
REMOTE SENSING AND GEOGRAPHIC INFORMATION SYSTEMS: GEOLOGICAL MAPPING, MINERAL EXPLORATION AND MINING. By C. A. L egg .
PHOTOGRAMMETRY. VOLUME 1. FUNDAMENTALS AND STANDARD PROCESSES. Fourth revised and enlarged edition. By K. K raus .
THE PHOTOGRAPHIC LENS. Second edition. By S. F. R ay .     

BOOK REVIEWS

Book Reviewed in this article:
THE NATIONAL GRAVITY REFERENCE NET 1973 (NGRN73). By D. M asson S mith , P. M. H owell , A. B. D. E. A bernethy -C lark and D. W. P roctor (Editor). O rdnance S urvey P rofessional P aper N o .
THE PRECISE ALIGNMENT SURVEY OF A 5 KM RADIO TELESCOPE AERIAL ARRAY FOR THE CAVENDISH LABORATORY, CAMBRIDGE UNIVERSITY. By W. J. P reiss , D. W. P roctor and P. E. H aywood . O rdnance S urvey P rofessional P aper N o .
REMOTE SENSING EVALUATION FLIGHTS, 1971. Part 1 edited by L. F. C urtis and A. M ayer ; Part 2 edited by J. G. W. G reenwood .
PHOTO-HYDROLOGICAL RECONNAISSANCE SURVEYS. By A. M. J. M eijerink .
EVIDENCE IN CAMERA. The story of photographic intelligence in World War II. By C. B abington S mith .
STABILIZATION OF PHOTOGRAPHIC SILVER HALIDE EMULSIONS. By E. J. B irr .     

BOOK REVIEWS

Book review in this Article PHOTOGRAMMETRY. Volume 2 Advanced methods and applications. By K. Kraus with contributions by J. Jensa and H. Kager. Fourth edition, translated into English by P. Stewardson. Dümmler Verlag, Bonn, 1997. ISBN 3 427 78694 3. 240 x164 mm. 466 pages. lllustrated. Price DM 88. ERROR PROPAGATION IN ENVIRONMENTAL MODELLING WITH GIS. By G. B. M. Heuvelink. Taylor & Francis, London, 1998. ISBN 0 7484 0743 X (hardback), 0 7484 0744 8 (paperback). 233 × 156 mm. xviii + 127 pages. Price £24.95 paperback. GOVERNMENTS AND GEOGRAPHIC INFORMATION. By I. Masser. Taylor & Francis Ltd., London, 1998. ISBN 07484 0789 8 (cased), ISBN 07484 0706 5 (paperback). 246 × 170 mm. xi + 120 pages. 10 figures, 6 colour plates and 10 tables. Price £19.95 paperback. AN INTRODUCTION TO GEOGRAPHICAL INFORMATION SYSTEMS. By I. Heywood , S. Cornelius and S. Carver. Addison Wesley Longman Ltd., Harlow, 1998. ISBN 0 582 08940 9. 245 × 187 mm. xiv + 279 pages. Black and white illustrations and colour plates. Price £18.99paperback. EUROPEAN GEOGRAPHIC INFORMATION INFRASTRUCTURES: OPPORTUNITIES AND PITFALLS. GISData series V. Edited by P. A. Burrough and I. Masser. European Science Foundation/Taylor & Francis Ltd., London, 1998. ISBN 0 7484 0755 3 (hardbac ISBN 0 7484 0756 1 (paperback). 252 × 173 mm. xv + 172 pages. 4 colour plates. Price £55–95 hardback, £26.95 paperback. INNOVATIONS IN GIS. Selected Papers from the Fifth National Conference on GIS Research UK (GISRUK). Edited by S. Carver. Taylor & Francis Ltd., London, 1998. ISBN 0 7484 0810 X. 252 × 174 mm. xxii + 246 pages. Numerous illustrations, including four colour plates. Price £69.95. SCALE IN REMOTE SENSING AND GIS. Edited by D. A. Quattrochi and M. F. Goodchild. Lewis Publishers, New York, 1997. ISBN 1 56670 104 X. 235 × 165 mm. 406 pages, 21 colour plates, including bibliographical references, index, many diagrams and illustrations. Price £48.00 hardback. PRACTICAL GEODESY: USING COMPUTERS. By M. Hooijberg. Springer-Verlag, Heidelberg, 1997. ISBN 3 540 61826 0. 273 x198 mm. xi + 308 pages. 69 figures and 21 tables. Price £49.00 hardback. GIS ONLINE: INFORMATION RETRIEVAL, MAPPING, AND THE INTERNET. By B. Plewe. OnWord Press, Santa Fe, New Mexico, 1997. ISBN 1 56690 137 5. 179 × 228 mm. xv + 311 pages. 99 figures. World Wide Web site containing supporting material and update information: http://kaycnta.geog.byu.edu/gisonline Price £29.95 paperback. ANALYSIS OF SAR DATA OF THE POLAR OCEANS: RECENT ADVANCES. Edited by C. Tsatsoulis . and R. Kwok . Springer-Verlag, Berlin, 1998. ISBN 3 540 62802 9. 241 × 160 mm. vi + 290 pages. 125 figures, including 26 in colour, and 18 tables. Price £95.50 hardback. IMAGES OF THE EARTH: A GUIDE TO REMOTE SENSING. Second edition. By S. A. Drury. Oxford University Press, Oxford, 1998. ISBN 0 19 854997 0. 276 × 220 mm. viii + 203 pages. 201 illustrations, 2 tables. Price £25.00 paperback. EXPLORING GEOGRAPHIC INFORMATION SYSTEMS. By N. R. Chrisman. John Wiley & Sons, Inc., New York, 1997. ISBN 0 471 10842 1. 230 × 190 mm. xvi + 298 pages. 103 figures and 27 tables. Price £24.95 paperback.