TY  - Data
T1  - Multi year Observation of Near Bottom Water Dynamics and Suspended Sediments in the Core Area of the Yangtze River Estuary with Maximum Turbidity (2015-2018)
A1  - Ge Jianzhong
DO  - 10.4121/6d4fcaff-6a30-4990-881a-a5ac8ebb1ca6
PY  - 2025
DA  - 2025-12-29
PB  - National Cryosphere Desert Data Center
AB  - This dataset is derived from a comprehensive multi-year field investigation activity called the North Channel Measurement Program (NP ChamM), aimed at deepening the understanding of hydrodynamics and sedimentary dynamics of the North Channel, the main channel of the Yangtze River estuary in China. Covering eight observation points, lasting 50 days, distributed over four years, including two dry seasons and two rainy seasons. By deploying a tripod system equipped with multiple instruments on the seabed, reliable monitoring of near bottom physical processes has been achieved.    The final dataset obtained includes the following: (1) fluid motion data, covering pressure, flow velocity and direction (bottom and full water column range), as well as wave morphology; (2) Near bottom environmental conditions, including temperature, salinity, and turbidity (within 1 meter of the bottom layer and near the bottom); (3) Supplementary meteorological data from reliable suppliers; (4) Preliminary results of post-processing demonstrate the practical application value of the data, such as analysis of lateral flow field and turbulent kinetic energy characteristics.    This dataset is particularly valuable due to its wide temporal and spatial coverage and high concentration observation characteristics (concentration range from grams per liter to tens of grams). The NP Cham observation program was implemented annually from 2015 to 2018, achieving precise observations of seasonal changes in environmental conditions and related physical processes. Eight observation points distributed on both sides of the deep-water channel can quantitatively analyze the channel shallow water exchange process, flow mechanics along the channel, and saltwater intrusion phenomena. This dataset can deepen our understanding of the dynamics along and across channels in the channel shoal system, and is also suitable for calibrating numerical models. All data undergoes strict quality control to ensure reliability
DB  - NCDC
UR  - http://www.ncdc.ac.cn/portal/metadata/0d1a82bf-05f0-4a3a-beb3-eaf4cfd48c8e
ER  -