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Tidal Dataset - CAMRIS - Maximum Tidal Range

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Research Data Australia2024-12-14 收录
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https://researchdata.edu.au/tidal-dataset-camris-tidal-range/3374697
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This dataset contains maps showing the principal attributes of tides around the Australian coast. It has been derived from data published in the Australian National Tide Tables.\n\nFormat: shapefile. \n\nQuality - \nScope: Dataset. \nExternal accuracy: +/- one degree. \nNon Quantitative accuracy: Data are assumed to be correct. \nThree datasets describe tidal information around Australia:\n\nCover_Name, Item_Name, Item_Description:\n\nTIDEMAX, MAX_TIDE_(M), Maximum tidal range in metres.\n\nConceptual consistency: Coverages are topologically consistent. No particular tests conducted by ERIN. \nCompleteness omission: Complete for the Australian continent.\nLineage: ERIN:\nData was projected to geographics using the WGS84 datum and spheroid, to be compatible for the Australian Coastal Atlas. The digital datsets were attributed using the information held in the legend (.key) files.\n\nCSIRO:\nAll CAMRIS data were stored in VAX files, MS-DOS R-base files and as a microcomputer dataset accessible under the LUPIS (Land Use Planning Information System) land allocation package. CAMRIS was established using SPANS Geographic Information System (GIS) software running under a UNIX operating system on an IBM RS 6000 platform. A summary follows of processing completed by the CSIRO:\n1. r-BASE: Information imported into r-BASE from a number of different sources (ie Digitised, scanned, CD-ROM, NOAA World Ocean Atlas, Atlas of Australian Soils, NOAA GEODAS archive and The Complete Book of Australian Weather).\n2. From the information held in r-BASE a BASE Table was generated incorporating specific fields.\n3. SPANS environment: Works on creating a UNIVERSE with a geographic projection - Equidistant Conic (Simple Conic) and Lambert Conformal Conic, Spheroid: International Astronomical Union 1965 (Australia/Sth America); the Lower left corner and the longitude and latitude of the centre point.\n4. BASE Table imported into SPANS and a BASE Map generated.\n5. Categorise Maps - created from the BASE map and table by selecting out specified fields, a desired window size (ie continental or continent and oceans) and resolution level (ie the quad tree level).\n6. Rasterise maps specifying key parameters such as: number of bits, resolution (quad tree level 8 lowest - 16 highest) and the window size (usually 00 or cn).\n7. Gifs produced using categorised maps with a title, legend, scale and long/lat grid.\n8. Supplied to ERIN with .bil; .hdr; .gif; Arc export files .e00; and text files .asc and .txt formats.\n9. The reference coastline for CAMRIS was the mean high water mark (AUSLIG 1:100 000 topographic map series).

本数据集包含展示澳大利亚沿岸潮汐主要属性的地图集,其数据源自《澳大利亚国家潮汐表》公开的资料。 格式:Shapefile。 质量—— 范围:数据集。 外部精度:±1度。 非量化精度:默认数据准确无误。 本数据集包含三类描述澳大利亚沿岸潮汐信息的子数据集: 覆盖名称(Cover_Name)、要素名称(Item_Name)、要素描述(Item_Description): TIDEMAX,MAX_TIDE_(M):以米为单位的最大潮差。 概念一致性:各覆盖图层拓扑结构一致,ERIN未开展专项测试。 完整性:覆盖澳大利亚全境,无数据遗漏。 数据来源与处理沿革(Lineage): ERIN:为适配《澳大利亚海岸地图集》,数据已基于WGS84基准面与椭球体投影至地理坐标系。数字数据集已通过图例(.key)文件中的信息完成属性赋值。 CSIRO:所有CAMRIS数据均存储于VAX文件、MS-DOS R-base文件,以及可通过LUPIS(土地利用规划信息系统,Land Use Planning Information System)土地分配模块访问的微型计算机数据集。CAMRIS依托运行于IBM RS 6000平台UNIX操作系统的SPANS地理信息系统(GIS)软件搭建而成。以下为CSIRO完成的处理流程概述: 1. r-BASE:从多类来源(包括数字化数据、扫描件、CD-ROM光盘、NOAA世界海洋图集、《澳大利亚土壤图集》、NOAA GEODAS档案库以及《澳大利亚气象大全》)将信息导入r-BASE。 2. 基于r-BASE中存储的信息,生成包含指定字段的基础表(BASE Table)。 3. SPANS环境:构建带有地理投影的全域数据集——等距圆锥投影(简单圆锥投影)与兰伯特共形圆锥投影,椭球体采用1965年国际天文学联合会标准(适配澳大利亚/南美洲区域);需指定左下角坐标与中心点经纬度。 4. 将基础表导入SPANS并生成基础地图(BASE Map)。 5. 地图分类:通过筛选指定字段、目标窗口范围(即大陆范围或大陆与海洋范围)以及分辨率级别(即四叉树层级),基于基础地图与基础表生成分类地图。 6. 地图栅格化:指定关键参数,包括比特数、分辨率(四叉树层级8为最低档,16为最高档)以及窗口尺寸(通常为00或cn)。 7. 基于分类地图生成GIF图像,包含标题、图例、比例尺以及经纬度网格。 8. 以.bil、.hdr、.gif、Arc导出文件.e00以及文本文件.asc和.txt格式提交至ERIN。 9. CAMRIS的参考海岸线采用平均高潮位线(AUSLIG 1:100 000比例尺地形图系列)。
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