Australian Hydrographic Service Surveys at Mawson Station - ITRF2000

This consolidated dataset consists of Australian Hydrographic Service (AHS) surveys HI621C, 5135 (Terrestrial), HI364, HI514, and HI607 converted to International Terrestrial Reference Frame 2000 (ITRF2000) horizontal datum with Z conversion values for multiple height datums. The data was provided to the AAD by Paul Digney of Jacobs consulting in February 2021.Included survey datasets:•    HI621C_MAWSON_merged.shp•    HI621C_MAWSON_merged.shp•    Terrestrial_Data_5135•    HI364_HSDB_T0001_SD_100035029_op_soundings•    QC_HI 514 HDCS_FDD_appraised (Mawson Approches)•    HI607.ShpAll data are in horizontal datum ITRF2000 and have been combined into a single ESRI geodatabase feature class titled AHS_Surveys_Mawson_ITRF2000.Attribute data shows quality information, conversion factors (shift in metres) for multiple datums and the MSL orthometric height:Column Name,     Alias,    MeaningEasting,    Easting,    Easting ITRF2000Northing,    Northing,    Northing ITRF2000CD_To_GRS8,    CD_To_GRS80,     LAT (Chart Datum) to the EllipsoidLAT_to_GRS80,    LAT_to_GRS80,    LAT (Chart Datum) to GSR80LAT_to_MSL_Mawson,    LAT_to_MSL_Mawson,    LAT to Mawson MSLZ_To_GRS80,    Z_To_GRS80,    Height to the EllipsoidZ_To_MSL_Mawson,    Z_To_MSL_Mawson,    Local MSL orthometric heightVertical_U,    Vertical_Uncertainty,    How good is the Vertical PositionHorizontal,    Horizontal Uncertainty,    How good is the Horizontal PositionUncertaint,    Uncertainty Comments,    Depth_Comm,     Depth_Comments,            Vertical uncertainty ranges from 0.05 to 0.64 m and horizontal uncertainty ranges from 0.05 to 1.0 mSee the attached document ‘Metadata_Record_Mawson Final REV2.xlsx’ for further details.

本整合数据集包含澳大利亚水文局（Australian Hydrographic Service, AHS）的HI621C、5135（陆地测量）、HI364、HI514及HI607号测量成果，已转换至2000国际地面参考框架（International Terrestrial Reference Frame 2000, ITRF2000）水平基准面，并附带多高程基准面对应的Z向转换参数。
本数据集于2021年2月由Jacobs咨询公司的Paul Digney提交至澳大利亚南极局（Australian Antarctic Division, AAD）。

包含的测量数据集如下：
• HI621C_MAWSON_merged.shp
• HI621C_MAWSON_merged.shp
• Terrestrial_Data_5135
• HI364_HSDB_T0001_SD_100035029_op_soundings
• QC_HI 514 HDCS_FDD_appraised (Mawson Approches)
• HI607.Shp

所有数据均采用ITRF2000水平基准面，并已整合为单个ESRI地理数据库要素类，命名为AHS_Surveys_Mawson_ITRF2000。

属性数据包含质量信息、多基准面转换参数（单位：米级偏移量）及平均海平面正高信息，具体字段如下：
列名 别名 含义说明
Easting Easting ITRF2000东向坐标
Northing Northing ITRF2000北向坐标
CD_To_GRS8 CD_To_GRS80 海图基准面纬度至参考椭球面的转换参数
LAT_to_GRS80 LAT_to_GRS80 海图基准面纬度至GRS80椭球的转换参数
LAT_to_MSL_Mawson LAT_to_MSL_Mawson 莫森站平均海平面纬度转换参数
Z_To_GRS80 Z_To_GRS80 高程至参考椭球面的转换参数
Z_To_MSL_Mawson Z_To_MSL_Mawson 本地平均海平面正高
Vertical_U Vertical_Uncertainty 垂直位置精度
Horizontal Horizontal_Uncertainty 水平位置精度
Uncertaint Uncertainty Comments 不确定性注释
Depth_Comm Depth_Comments 深度测量注释

垂直不确定度范围为0.05~0.64米，水平不确定度范围为0.05~1.0米。详细信息请参阅附件文档《Metadata_Record_Mawson Final REV2.xlsx》。