南极每日中等尺度空气温度数据集来自MODIS陆地和冰面温度数据集
Eva Bendix Nielsen1, Marwan Katurji2, Peyman Zawar-Reza2
1Centre for Atmospheric Research, School of Earth and Environment at University of Canterbury, Christchurch, New Zealand. eva.nielsen@pg.canterbury.ac.nz.
Scientific data
|November 27, 2023
概括
一个新的数据集,AntAir ICE,使用卫星数据模拟南极空气温度,为极地研究和气候变化研究提供了比现有气候模型更准确,更高分辨率的替代方案.
科学领域:
- * 极地科学 极地科学
- * * 气候学 气候学
- * * 冰川学 冰川学
- * 水文学 水文学
- * 生态学 * 生态学
背景情况:
- *准确的空气温度数据对于了解南极气候动态至关重要,但由于极端环境,直接观测很少.
- * 卫星推导的表面温度已经显示出作为近地表空气温度的代理的潜力.
研究的目的:
- *为陆地南极洲和周围的冰架开发高分辨率的每日空气温度数据集.
- * 为极地研究学科和气候变化监测提供有价值的资源.
主要方法:
- * 开发了使用线性模型估计MODIS皮肤温度数据的空气温度的AntAir ICE数据集.
- *数据集涵盖了2003-2021年期间,每日时间和1平方公里的空间分辨率.
主要成果:
- *与ERA5气候再分析模型相比,AntAir ICE数据集在现场空气温度测量中显示出更高的准确性.
- * 该数据集提供了显著更高的空间分辨率,增强了对南极温度模式的监测.
结论:
- * AntAir ICE提供了更准确,更详细的南极空气温度变化的图像.
- * 这一数据集是各种极地研究领域和了解南极洲气候变化影响的宝贵工具.
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