帕隆藏布江河道形态参数（1973-2020）

1973-2020年帕隆藏布江波密段典型河段河道形态参数，主要包括河道面积（m²）、河道宽度（m）、辫状指数（-）、心滩数目（-）及心滩面积（m²）等信息。河道边界的提取主要基于Landsat 系列MISS、TM、ETM+以及OLI遥感影像，利用MNDWI指数提取并经过人工目视解译修正。基于影像提取的河道形态参数经过了野外实测数据的验证。该数据将为理解青藏高原短期河道形态变化，及青藏高原河道形态变化对气候变化及人类活动的响应研究、未来区域河流管理、水文水资源管理以及生态环境保护提供有力的数据支撑。Channel morphological parameters of typical reaches in the Bomi section of the Parlung Zangbo River from 1973 to 2020 mainly include channel area (m²), channel width (m), braided index (-), number of mid-channel bars (-), and mid-channel bar area (m²), among other relevant indicators. The extraction of river channel boundaries is primarily based on Landsat series MISS, TM, ETM+ and OLI remote sensing images, which were extracted using the Modified Normalized Difference Water Index (MNDWI) and corrected via manual visual interpretation. The channel morphological parameters derived from these images have been validated with field-measured data. This dataset provides robust data support for research on short-term fluvial morphological changes across the Qinghai-Tibet Plateau, the responses of such changes to climate change and human activities, as well as future regional river management, hydrology and water resources management, and ecological environmental protection.

搜集汇总

背景与挑战

背景概述

该数据集提供了1973年至2020年帕隆藏布江波密段典型河段的河道形态参数，包括河道面积、宽度、辫状指数、心滩数目和面积等关键指标，数据基于Landsat遥感影像经MNDWI指数提取和人工修正，并经过野外实测验证。这些数据主要用于研究青藏高原短期河道形态变化及其对气候变化和人类活动的响应，为区域河流管理、水文水资源管理和生态环境保护提供支持。