北极黄河站2010年Austre Lovénbree和Pedersenbreen冰川运动GPS观测数据
收藏国家极地科学数据中心2023-03-03 更新2024-03-06 收录
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在北极黄河站附近的A冰川和P冰川上钻孔埋设监测标杆,用于开展冰川GPS和物质平衡观测。GPS观测所用设备为Leica GX1230型GPS接收机,配备Leica AX1202型天线。冰川运动和末端位置观测是以北极黄河站GPS卫星跟踪站作为差分主站,对两条冰川的全部标杆以及Austre Lovénbree冰川末端位置控制点进行高精度GPS测量,通过后处理差分计算,得到各观测点相对于黄河站的精确坐标值。两条冰川上每个观测点的测量时间在1小时以上,部分点位进行了两次甚至三次测量,测量精度达到了水平方向优于1 cm、高程方向优于2 cm的水平;冰川末端位置控制点的测量时间约为20分钟,测量精度达到厘米级,完全满足冰川研究工作的需要。
数据处理采用北极黄河站GPS跟踪站作为主站进行后处理差分,黄河站的GPS跟踪站坐标定为CNYR(78°55‘21.36000"N,11°56‘07.81000"E,H=46.116m。
本数据为2010年黄河站冰川运动GPS观测数据,采用word格式存储,包括观测点名称、观测时间、经度、经度误差、纬度、纬度误差、高度和高度误差等信息。数据表格中,冰川监测点的头两位是点名,*new表示旧的标杆已经倒伏不能准确定位,因此新埋设标杆,不能与前面的位置数据比对;*P表示原来标杆倒伏,测量位置是倒伏现场的标杆根部,即可能的点位。
Monitoring poles were drilled and installed on Glacier A and Glacier P near the Arctic Yellow River Station to conduct glacial GPS and mass balance observations.
The GPS observation equipment used was a Leica GX1230 GPS receiver, equipped with a Leica AX1202 antenna.
High-precision GPS measurements were performed for all poles on the two glaciers and the terminal position control points of Austre Lovénbree Glacier, using the GPS satellite tracking station at the Arctic Yellow River Station as the differential reference station. Precise coordinates of each observation point relative to the Yellow River Station were derived via post-processed differential calculations.
Each observation point on the two glaciers was measured for over 1 hour, and some points were measured twice or even three times. The measurement accuracy achieved better than 1 cm in the horizontal direction and better than 2 cm in the elevation direction. The measurement time for the glacial terminal position control points was approximately 20 minutes, with centimeter-level accuracy, which fully meets the requirements of glacial research.
Data processing was conducted using the GPS tracking station at the Arctic Yellow River Station as the reference station for post-processed differential calculations. The coordinates of the Yellow River Station GPS tracking station are defined as CNYR (78°55'21.36000"N, 11°56'07.81000"E, H=46.116m).
This dataset contains the 2010 glacial movement GPS observation data from the Yellow River Station, stored in Word format. It includes information such as observation point name, observation time, longitude, longitude error, latitude, latitude error, altitude, and altitude error.
In the data table, the first two characters of each glacial monitoring point entry represent the point name. *new indicates that the original monitoring pole has toppled over and cannot be accurately positioned, so a new pole was installed, and its positional data cannot be compared with prior records; *P indicates that the original pole has toppled over, and the measured position is the root of the pole at the toppling site, i.e., the approximate potential location.
提供机构:
中国极地研究中心(中国极地研究所)
创建时间:
2023-03-03



