当前位置:首页>南京>【专题数递】中国科学院南京地理与湖泊研究所科学数据中心 发布全球冰湖空间分布数据集GIGLak(2020年)

【专题数递】中国科学院南京地理与湖泊研究所科学数据中心 发布全球冰湖空间分布数据集GIGLak(2020年)

  • 2026-06-01 15:53:22
【专题数递】中国科学院南京地理与湖泊研究所科学数据中心 发布全球冰湖空间分布数据集GIGLak(2020年)

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LakeData

近日,国家地球系统科学数据中心湖泊-流域分中心暨中国科学院南京地理与湖泊研究所科学数据中心(以下简称“本中心”)发布全球冰湖空间分布数据集GIGLak(2020年)该数据实现了全球(不包含南极和格陵兰冰盖区域)面积在0.01 km²及以上的冰川湖泊空间编目,填补了全球时空一致的小微型冰川湖泊空间数据集的空白欢迎相关领域研究人员访问使用。

该数据集由中国科学院南京地理与湖泊研究所宋春桥研究员团队研制生产,相关研究成果以“A spatially constrained remote sensing-based inventory of glacial lakes worldwide”为题,发表于Nature旗下期刊《Scientific Data》上。该数据支撑团队进一步开展关于新型测高卫星SWOT监测冰湖水位的冰雪穿透效应研究,相关成果发表于《Geophysical Research Letters》。

01

数据介绍

气候变暖背景下,冰川加速消融驱动了冰碛坝湖和冰坝湖在世界范围内的广泛发育。冰湖的快速扩张不仅改变了区域水储量,其潜在的冰湖溃决洪水也对下游生命财产和基础设施构成严峻威胁。因此,在全球尺度上精确摸清冰湖的空间分布“家底”,是灾害预警和水资源评估的重要先决条件。目前,由于不同研究使用的数据源、提取方法及阈值标准不统一,全球冰湖数据的跨区域整合与比对面临巨大挑战。

为了提供一个精准的“空间底座”,研究团队整合GSW(1984-2020)与GLAD(1999-2020)两套全球地表水产品,提取全球多年最大水域范围;随后叠加RGI v6.0全球冰川数据,以冰川末端3km为空间约束、0.01km² 为面积阈值开展初步筛选;再利用MERIT DEM 地形数据去除地形阴影、云雪等误提图斑;最后通过累计约 2600 小时的人工质量控制,剔除河流、水库等非冰湖图斑、补充遗漏冰湖,并完成边界精修与四类冰川湖类型划分,最终形成时空标准统一的全球冰川湖空间分布数据集(GIGLak)。

数据结果显示,过去30年期间全球共分布有117352个冰湖,总面积达24755.84 km²(图1)。这些冰湖广泛分布于“第三极”高山区到低海拔的沿海地区,其中格陵兰周边、高山亚洲、阿拉斯加、加拿大以及科迪勒拉山系是冰湖分布的显著热点区域。在规模特征上,面积介于0.01至0.10 km²之间的小型微型冰湖在数量上占据绝对优势(占总数的77.24%),但其面积仅占总量的11.82%。团队还将冰湖细分为四类,发现“冰川非接触型湖泊”(IUL)在全球范围内占据主导地位,其数量占比达67.07%,面积占比达53.04%。

图1 数据集生产流程

图2. 全球不同冰川区四类冰川湖的空间分布及其数量和面积比例。

NGFL、IUL、ICL 和 SGL 分别代表非冰川补给湖、非冰接触冰前湖、冰接触冰前湖和冰面湖。

02

数据下载

1.国家地球系统科学数据中心湖泊-流域分中心

https://lake.geodata.cn/data/datadetails.html?dataguid=118326789478610

2.中国科学院南京地理与湖泊研究所数据中心

http://data.niglas.ac.cn/catalog/detail/1068

03

数据引用方式

中文引用方式参考:

宋春桥, 范晨雨, 等. 全球冰湖空间分布数据集(GIGLak)(2020年). 国家地球系统科学数据中心湖泊-流域分中心,2026.

https://doi.org/10.11971/lim.2026.012.db.lwdc. https://cstr.cn/37833.11.lake.2026012.

英文引用方式参考:

Chunqiao Song, Chenyu Fan, et al. A spatially constrained remote sensing-based inventory of glacial lakes worldwide. Lake-Watershed Science Data Center, National Earth System Science Data Center, 2026.

https://doi.org/10.11971/lim.2026.012.db.lwdc. https://cstr.cn/37833.11.lake.2026012.

04

论文引用方式

[1] Deng, M., Ma, R., Wang, L. et al. A lake salinity dataset produced via microwave and optical imageries. Earth Syst. Sci. Data 18, 903-925 (2026). https://doi.org/10.5194/essd-18-903-2026

[2] Luo, S., Song, C.*, Zhan, P., Li, J., & Peng, L. (2026). A first look at the snow/ice penetration effect of SWOT observations on water level of global glacial lakes. Geophysical Research Letters, 53, e2026GL122624. https://doi.org/10.1029/2026GL122624

END

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  1. CONNECT:[ UseTime:0.000723s ] mysql:host=127.0.0.1;port=3306;dbname=b460;charset=utf8mb4
  2. SHOW FULL COLUMNS FROM `fenlei` [ RunTime:0.000876s ]
  3. SELECT * FROM `fenlei` WHERE `fid` = 0 [ RunTime:0.000394s ]
  4. SELECT * FROM `fenlei` WHERE `fid` = 63 [ RunTime:0.000323s ]
  5. SHOW FULL COLUMNS FROM `set` [ RunTime:0.000526s ]
  6. SELECT * FROM `set` [ RunTime:0.000227s ]
  7. SHOW FULL COLUMNS FROM `article` [ RunTime:0.000688s ]
  8. SELECT * FROM `article` WHERE `id` = 561955 LIMIT 1 [ RunTime:0.001063s ]
  9. UPDATE `article` SET `lasttime` = 1780617067 WHERE `id` = 561955 [ RunTime:0.012134s ]
  10. SELECT * FROM `fenlei` WHERE `id` = 65 LIMIT 1 [ RunTime:0.000250s ]
  11. SELECT * FROM `article` WHERE `id` < 561955 ORDER BY `id` DESC LIMIT 1 [ RunTime:0.000564s ]
  12. SELECT * FROM `article` WHERE `id` > 561955 ORDER BY `id` ASC LIMIT 1 [ RunTime:0.004644s ]
  13. SELECT * FROM `article` WHERE `id` < 561955 ORDER BY `id` DESC LIMIT 10 [ RunTime:0.001068s ]
  14. SELECT * FROM `article` WHERE `id` < 561955 ORDER BY `id` DESC LIMIT 10,10 [ RunTime:0.001752s ]
  15. SELECT * FROM `article` WHERE `id` < 561955 ORDER BY `id` DESC LIMIT 20,10 [ RunTime:0.000693s ]
0.096496s