2020-2022年北极海冰区海冰融池覆盖度数据集
收藏资源简介:
融池正反馈机制的存在,使得融池吸收的太阳短波辐射多于海冰,引起海冰加速融化,影响海冰演变,因此量化融池覆盖率为研究北极海冰快速变化提供重要依据。本数据集基于MODIS影像使用米散射理论和多层辐射传输模型理论建立融池光谱反射模型和海冰光谱反射模型,利用混合像元分解算法生产2000-2022年北极海冰区海冰融池覆盖度。本数据集投影为兰伯特等面积投影,数据集格式为栅格(*.tif)。
The presence of the positive feedback mechanism for melt ponds enables them to absorb more solar short-wave radiation than sea ice, thereby accelerating sea ice melting and affecting sea ice evolution. Thus, quantifying melt pond coverage serves as a critical basis for investigating rapid changes in Arctic sea ice. This dataset develops spectral reflectance models for melt ponds and sea ice using Mie scattering theory and multi-layer radiative transfer theory based on MODIS imagery, and generates sea ice melt pond coverage over the Arctic sea ice region from 2000 to 2022 via the mixed pixel decomposition algorithm. The dataset adopts Lambert Equal-Area Projection, and its format is raster files (*.tif).




