PROMICE-2022 Ice Mask Sentinel-2 RGB mosaic (August 2022)

PROMICE-2022 Ice Mask Sentinel-2 RGB Mosaic (August 2022) Short description High-resolution Sentinel-2 RGB mosaics covering the ice margin of the Greenland Ice Sheet used to derive the PROMICE-2022 ice mask. The mosaics were compiled from Sentinel-2 imagery acquired in August 2022 and processed to Cloud-Optimized GeoTIFF (COG) format with ZSTD compression for efficient access and reduced file size. The dataset is provided as nine regional mosaics to balance file size, spatial coverage, and usability. The nine directional tiles included are: SW, W, NW, NNW, NNE, NE, EN, ES, SE. The scripts used to create these mosaics are available at the PROMICE ice mask GitHub repository: https://github.com/GEUS-Glaciology-and-Climate/PROMICE-ice-mask. Files included Sentinel_2_August_2022_SW_COG.tif — COG mosaic, southwest Greenland Sentinel_2_August_2022_W_COG.tif — COG mosaic, west Greenland Sentinel_2_August_2022_NW_COG.tif — COG mosaic, northwest Greenland Sentinel_2_August_2022_NNW_COG.tif — COG mosaic, north-northwest Greenland Sentinel_2_August_2022_NNE_COG.tif — COG mosaic, north-northeast Greenland Sentinel_2_August_2022_NE_COG.tif — COG mosaic, northeast Greenland Sentinel_2_August_2022_EN_COG.tif — COG mosaic, east-northeast Greenland Sentinel_2_August_2022_ES_COG.tif — COG mosaic, east-southeast Greenland Sentinel_2_August_2022_SE_COG.tif — COG mosaic, southeast Greenland Technical summary Source: Sentinel-2 Level-2 imagery (Copernicus/ESA) Acquisition: August 2022 Resolution: native Sentinel-2 RGB Format: Cloud-Optimized GeoTIFF (COG) Compression: ZSTD (lossless, optimized for cloud access) CRS: WGS 84 / NSIDC Sea Ice Polar Stereographic North (EPSG:3413) Licence & attribution The underlying Sentinel-2 imagery is distributed under the Copernicus Open Access Licence (Copernicus/ESA). Users are requested to acknowledge Copernicus/ESA when using the mosaics. The PROMICE-2022 derivative products in this Dataverse are provided under the terms described in the dataset metadata. Terms of use If the data are presented or used to support results of any kind, please include an acknowledgement and references to the applicable publications: Reference to the peer-reviewed article presenting the PROMICE-2022 Ice Mask: Luetzenburg, G. et al. (2026). PROMICE-2022 Ice Mask: A High-Resolution Outline of the Greenland Ice Sheet from August 2022. Earth Syst. Sci. Data, 18, 411–427. hhttps://doi.org/10.5194/essd-18-411-2026 Reference to the dataset itself (see citation and DOI at the top of this page). If the data are crucial to the main conclusions of a manuscript or presentation of any kind, please contact a relevant member of the PROMICE team at GEUS and include them in the manuscript author list. Usage notes The mosaics are provided as nine COG files to allow efficient streaming and subsetting without downloading the full dataset. They were used to manually delineate the PROMICE-2022 ice mask and are suitable for high-resolution visual interpretation and as a mask for Sentinel-2 based classification workflows. Related Datasets PROMICE-2022 Ice Mask (Master Dataset) The PROMICE-2022 Ice Mask is the primary output of this data release and provides the updated delineation of the Greenland Ice Sheet. The mask was derived using multiple datasets, including the Sentinel-2 mosaics provided here. Access it here: https://doi.org/10.22008/FK2/O8CLRE Google Earth Engine The PROMICE-2022 Ice Mask (file 06 of the master dataset) is available as an asset in the Google Earth Engine Feature Collection. Access it here: projects/promice-data-ee/assets/ice_masks/PROMICE_2022_ICE_MASK PROMICE-2022 Ice Mask QGIS Bundle This bundle provides the PROMICE-2022 ice mask together with a preconfigured QGIS project, layer styles, and WMS layers (e.g., Sentinel-2, SPOT 6/7, topographic maps). It is recommended for users who want to explore the ice mask and reference imagery inside a fully prepared GIS environment. Access it here: https://doi.org/10.22008/FK2/ARQ2L1

PROMICE-2022冰盖掩膜 哨兵二号(Sentinel-2)RGB镶嵌图（2022年8月）

简短说明
本数据集为覆盖格陵兰冰盖冰缘的高分辨率哨兵二号(Sentinel-2)RGB镶嵌图，用于生成PROMICE-2022冰盖掩膜。该镶嵌图由2022年8月获取的哨兵二号影像合成，经处理后采用ZSTD压缩格式存储为云优化GeoTIFF(Cloud-Optimized GeoTIFF, COG)，以实现高效访问并减小文件体积。本数据集分为9幅区域镶嵌图，以平衡文件体积、空间覆盖范围与易用性。包含的9个方位分幅如下：西南（SW）、西（W）、西北（NW）、北西北（NNW）、北东北（NNE）、东北（NE）、东东北（EN）、东东南（ES）、东南（SE）。生成该镶嵌图的脚本可于PROMICE冰盖掩膜GitHub仓库获取：https://github.com/GEUS-Glaciology-and-Climate/PROMICE-ice-mask.

包含文件
Sentinel_2_August_2022_SW_COG.tif — 格陵兰西南区域COG镶嵌图
Sentinel_2_August_2022_W_COG.tif — 格陵兰西部区域COG镶嵌图
Sentinel_2_August_2022_NW_COG.tif — 格陵兰西北部区域COG镶嵌图
Sentinel_2_August_2022_NNW_COG.tif — 格陵兰北西北区域COG镶嵌图
Sentinel_2_August_2022_NNE_COG.tif — 格陵兰北东北区域COG镶嵌图
Sentinel_2_August_2022_NE_COG.tif — 格陵兰东北部区域COG镶嵌图
Sentinel_2_August_2022_EN_COG.tif — 格陵兰东东北区域COG镶嵌图
Sentinel_2_August_2022_ES_COG.tif — 格陵兰东东南区域COG镶嵌图
Sentinel_2_August_2022_SE_COG.tif — 格陵兰东南部区域COG镶嵌图

技术概要
数据源：哨兵二号(Sentinel-2)L2级影像（哥白尼计划/欧洲空间局(Copernicus/ESA)）
获取时间：2022年8月
分辨率：哨兵二号原生RGB分辨率
格式：云优化GeoTIFF(Cloud-Optimized GeoTIFF, COG)
压缩方式：ZSTD（无损压缩，适配云端访问优化）
坐标参考系：WGS 84 / 美国国家冰雪数据中心海冰北极极面投影（EPSG:3413）

许可与署名要求
底层哨兵二号影像遵循哥白尼计划开放获取许可（Copernicus/ESA）发布。使用该镶嵌图时，请注明哥白尼计划/欧洲空间局。本数据库中的PROMICE-2022衍生产品遵循数据集元数据中规定的使用条款发布。

使用条款
若使用本数据支撑各类成果展示或研究结论，请附上相关致谢与参考文献：
1. PROMICE-2022冰盖掩膜相关同行评议论文：Luetzenburg, G. 等（2026）。PROMICE-2022冰盖掩膜：基于2022年8月影像的格陵兰冰盖高分辨率轮廓。《地球系统科学数据》（Earth Syst. Sci. Data），18卷，411–427页。https://doi.org/10.5194/essd-18-411-2026
2. 本数据集自身的引用信息，请见本页面顶部的著录信息与数字对象唯一标识符(Digital Object Identifier, DOI)。
若本数据为论文或演示文稿核心结论的关键支撑，请联系丹麦地质调查局(GEUS)PROMICE团队相关成员，并将其纳入论文作者列表。

使用说明
本数据集以9幅COG文件形式提供，支持高效流式加载与区域裁剪，无需下载完整数据集。该镶嵌图曾用于人工勾绘PROMICE-2022冰盖掩膜，适用于高分辨率目视解译，亦可作为基于哨兵二号影像的分类工作流的掩膜数据。

相关数据集
## PROMICE-2022冰盖掩膜（主数据集）
PROMICE-2022冰盖掩膜为本数据发布的核心产出，提供了更新后的格陵兰冰盖轮廓。该掩膜通过包括本数据集在内的多源数据生成。访问链接：https://doi.org/10.22008/FK2/O8CLRE

## 谷歌地球引擎(Google Earth Engine)资源
PROMICE-2022冰盖掩膜（主数据集第6份文件）已作为要素集资源收录于谷歌地球引擎(Google Earth Engine)，访问链接：projects/promice-data-ee/assets/ice_masks/PROMICE_2022_ICE_MASK

## PROMICE-2022冰盖掩膜QGIS工具包
该工具包包含PROMICE-2022冰盖掩膜，以及预配置的QGIS工程、图层样式与Web地图服务(Web Map Service, WMS)图层（如哨兵二号、SPOT 6/7影像、地形地图）。适合希望在已配置完成的地理信息系统(GIS)环境中探索冰盖掩膜与参考影像的用户。访问链接：https://doi.org/10.22008/FK2/ARQ2L1