南北极地图集的设计与特点   总被引：2，自引：1，他引：1  

陶岚  漆炜  庞小平 《地理空间信息》2010,8(3):131-133,137

作为中国第一部反映南北极地区地理环境和科考情况的地图集《南北极地图集》,该图集特殊的地理条件决定了其在编绘方式上与其他图集不同,从图集的内容设计、整饰和色彩设计、以及统一协调性研究3个方面入手,重点介绍图集设计中各方面的特色,总结图集编制的技术路线,为同类地图集的编绘提供参考。  相似文献   

四川省城镇土地级别与基准地价图集及查询系统研制     

徐京华  李何超  汪四文 《四川测绘》2010,(5):195-198

本文研究分析了四川省城镇土地级别、基准地价图集及查询系统等相关问题,阐述了系统总体设计、内容选择、表示方法、制作技术及其特点等。  相似文献   

《汶川地震灾害地图集》的设计与编制     

曾文军  李维庆  刘增林 《四川测绘》2009,32(1):39-42

本文介绍了《汶川地震灾害地图集》的设计与编制,包括设计思想、图集基本内容、技术路线及工艺流程、内容及表现形式的设计、采用的新技术、图集的特色等。  相似文献   

A rapid method to map the crustal and lithospheric thickness using elevation, geoid anomaly and thermal analysis. Application to the Gibraltar Arc System, Atlas Mountains and adjacent zones   总被引：1，自引：0，他引：1  

J. Fullea  M. Fernndez  H. Zeyen  J. Vergs 《Tectonophysics》2007,430(1-4):97-117

We present a method based on the combination of elevation and geoid anomaly data together with thermal field to map crustal and lithospheric thickness. The main assumptions are local isostasy and a four-layered model composed of crust, lithospheric mantle, sea water and the asthenosphere. We consider a linear density gradient for the crust and a temperature dependent density for the lithospheric mantle. We perform sensitivity tests to evaluate the effect of the variation of the model parameters and the influence of RMS error of elevation and geoid anomaly databases. The application of this method to the Gibraltar Arc System, Atlas Mountains and adjacent zones reveals the presence of a lithospheric thinning zone, SW–NE oriented. This zone affects the High and Middle Atlas and extends from the Canary Islands to the eastern Alboran Basin and is probably linked with a similarly trending zone of thick lithosphere constituting the western Betics, eastern Rif, Rharb Basin, and Gulf of Cadiz. A number of different, even mutually opposite, geodynamic models have been proposed to explain the origin and evolution of the study area. Our results suggest that a plausible slab-retreating model should incorporate tear and asymmetric roll-back of the subducting slab to fit the present-day observed lithosphere geometry. In this context, the lithospheric thinning would be caused by lateral asthenospheric flow. An alternative mechanism responsible for lithospheric thinning is the presence of a hot magmatic reservoir derived from a deep ancient plume centred in the Canary Island, and extending as far as Central Europe.  相似文献   

区域性地图集的设计创意——以《江苏省可持续发展地图集》为例     

刘晓玫沈宁泽  沈春迎 《地球信息科学学报》2003,5(2):27-31

信息时代的地图集编制无论在理论上还是在实践上都有着巨大的创新空间。区域地图集旨在反映区域的主要特征,为区域研究和决策提供依据。在区域性综合地图集的设计中,我们把区域可持续发展的观念作为切入点,运用综合制图的概念对区域相关数据进行信息重组和数据挖掘,从而体现现代地图功能飘移的思路。同时应用数字地图集编制系统,为地图集数据的更新,多方利用创造条件。  相似文献   

《北京市土地利用总体规划》图集的设计与编制     

侯海鸥 《北京测绘》2011,(4):66-68

阐述了<北京市土地利用总体规划>图集的设计思想.从版式开本设计、内容结构设计、地理基础底图的设计、专题内容的设计、工艺流程设计、整饰色彩设计等几个方面入手,介绍了图集的编制方法,并对FreeHand与superMap支持下的工艺流程进行了探索,希望能为其他同类图集的编制提供一些参考.  相似文献   

影像地图集的设计与研制     

张忠阳  郦淑俊 《现代测绘》2011,34(3):55-56,64

影像地图集作为地图产品的一种表现形式是将直接复照客观现象的航空(遥感)信息与经过专业人员加工的地理信息有机地融合在一起,帮助人们科学地、客观地、系统地、直观形象地认知地理环境,正确理解地理现象的空间关系。本文结合《宜兴市影像地图集》的设计与研制,着重讨论该图集的表示内容、生产技术流程以及影像校正、计算机直接制版新工艺流程等几个主要技术问题,为今后基于高分辨率航空(遥感)影像生产影像地图集在理论、方法和技术上提供参考。  相似文献   

New microcomputer database system for maps     

A. I. Zolnai  A. V. Okulitch 《Mathematical Geology》1988,20(8):973-976

A microcomputer-aided drafting system is used at the Geological Survey of Canada, Calgary, to make large charts and legends for the Geologic Atlas of Canada. Hand-drafting of Atlas maps may be supplemented by a digital geologic map database created by a new microcomputer and videotracing system at CAL-CAD. Video-tracing is more rapid and discriminating than existing rasterscan and digitizing table systems, as an image of the map is multiplexed (overlain) on-screen with AutoCAD. Interactive tracing and storage of each data type as a separate layer of file aids accuracy, and adds great editing power and output flexibility to geological and geophysical maps, cross sections, logs, and other complex diagrams. New digital and old paper databases can be merged into powerful geographic information systems.Read by M. Marchand (Canterra Energy Ltd., Calgary) at Emerging Concepts, MGUS 87 conference, 13–15 April 1987, Redwood City, California.  相似文献   

Tectonic–karstic origin of the alleged “impact crater” of Lake Isli (Imilchil district,High Atlas,Morocco)     

《Comptes Rendus Geoscience》2014,346(3-4):82-89

The scenic lakes Tislit and Isli of the Imilchil area in the central High Atlas of Morocco have been recently promoted to the rank of “dual impact crater” by a group of geoscientists. This was promptly denied by a group of meteorite specialists, but the first team reiterated their impact crater interpretation, now restricted to Lake Isli. This alleged 40-kyr-old impact crater would be associated with the Agoudal meteorite recognized further in the southeast. Here, we show that the lake formed during the Lower–Middle Pleistocene in a small Pliocene (?) pull-apart basin through additional collapsing due to karst phenomena in the underlying limestones. This compares with the formation of a number of lakes of the Atlas Mountains. None of the “proofs” produced in support of a meteoritic origin of Lake Isli coincides with the geology of the area.  相似文献   

The importance of being reliable – Local ecological knowledge and management of forage plants in a dryland pastoral system (Morocco)     

《Journal of Arid Environments》2013

In dryland rangelands with their high environmental variability, local ecological knowledge of forage plants is essential for management decisions. Ecological apparency hypothesis (EAH) predicts plants' availability and visibility to be important criteria for local valuation. However, EAH has mainly been tested in low-variability systems. We ask whether EAH is valid for forage plants in drylands; which other local criteria exist; and how criteria are connected to management decisions.In a Moroccan pastoral system, we applied a novel ethnobotanical method by calculating the Cognitive Salience Index (CSI) for plants' valuation (CSI_antro) and availability (CSI_eco). To evaluate explicit criteria, we correlated palatability and nutritive value to CSI_anthro. ANCOVAs related CSI_anthro to EAH criteria (CSI_eco and lifetime) and to plant occurrence on pasture types. We found EAH criteria to better predict CSI_antro than explicit criteria. Apparent plants from semi-arid pastures were more valued than those from arid pastures (HSD; p < 0.05). We introduce the criterion of reliability into EAH to explain this, and demonstrate how pastoralists adjust management decisions to resource reliability. Linking resource valuation to management decisions can thus improve our understanding of resilience mechanisms. Our study also confirms the validity of EAH for forage species and dryland environments.  相似文献