Multiscale Land Surface Parameters of GEDTM30: Slope in Degree

Slope in Degree This data is part of the Global Ensemble Digital Terrain Model (GEDTM30) dataset. Check the related identifiers section below to access other parts of the dataset. Disclaimer This is the release v1.2 of the Multiscale Land Surface Parameters (LSPs) / Terrain derivative of Global Ensemble Digital Terrain Model (GEDTM30). Use for testing purposes only. This work was funded by the European Union. However, the views and opinions expressed are solely those of the author(s) and do not necessarily reflect those of the European Union or the European Commission. Neither the European Union nor the granting authority can be held responsible for them. The data is provided "as is." The Open-Earth-Monitor project consortium, along with its suppliers and licensors, hereby disclaims all warranties of any kind, express or implied, including, without limitation, warranties of merchantability, fitness for a particular purpose, and non-infringement. Neither the Open-Earth-Monitor project consortium nor its suppliers and licensors make any warranty that the website will be error-free or that access to it will be continuous or uninterrupted. You understand that you download or otherwise obtain content or services from the website at your own discretion and risk. Description LSPs are derivative products of the GEDTM30 that represent measures of local topographic position, curvature, hydrology, light, and shadow. A pyramid representation is implemented to generate multiscale resolutions of 30m, 60m, 120m, 240m, 480m, and 960m for each LSP. The parametrization is powered by Whitebox Workflows in Python. To see the documentation, please visit our GEDTM30 Codeberg (https://codeberg.org/openlandmap/GEDTM30). Dataset Contents This dataset includes: Global Slope in Degree 120m Global Slope in Degree 240m Global Slope in Degree 480m Global Slope in Degree 960m Due to Zenodo's storage limitations, the high resolution LSP data are provided via external links: Global Slope in Degree 30m Global Slope in Degree 60m Related Identifiers Digital Terrain Model:GEDTM30 Landform:Slope in Degree Light and Shadow:Hillshade Curvature:Minimal Curvature, Maximal Curvature, Profile Curvature, Tangential Curvature Local Topographic Position:Difference from Mean Elevation, Spherical Standard Deviation of the Normals Hydrology:D8, Specific Catchment Area, LS Factor, Topographic Wetness Index Data Details Time period: static. Type of data: properties derived from Digital Terrain Model How the data was collected or derived: The data was derived using Whitbox Workflows. Methods used: LSP algorithms. Limitations or exclusions in the data: The dataset does not include data Antarctica. Coordinate reference system: EPSG:4326 Bounding box (Xmin, Ymin, Xmax, Ymax): (-180, -64, 180, 89) Spatial resolution: 120m, 240m, 480m, 960m Image size: 324,000P x 138,026L; 162,000P x 178,219L; 69,013P x 89,110L; 34,507L x 17,254L File format: Cloud Optimized Geotiff (COG) format. Additional information: Layer Scale Data Type No Data Difference from Mean Elevation 100 Int16 32,767 Hillshade 1 UInt16 65,535 LS Factor 1,000 UInt16 65,535 Maximal Curvature 1,000 Int16 32,767 Minimal Curvature 1,000 Int16 32,767 Profile Curvature 1,000 Int16 32,767 Slope in Degree 100 UInt16 65,535 Specific Catchment Area 1,000 UInt16 65,535 Spherical Standard Deviation of the Normals 100 Int16 32,767 Tangential Curvature 1,000 Int16 32,767 D8 flow direction 1 Uint8 255 Topographic Wetness Index 100 Int16 32,767 Support If you discover a bug, artifact, or inconsistency, or if you have a question please raise a Codeberg issue here Naming convention To ensure consistency and ease of use across and within the projects, we follow the standard Ai4SoilHealth and Open-Earth-Monitor file-naming convention. The convention works with 10 fields that describe important properties of the data. In this way users can search files, prepare data analysis etc, without needing to open files. For example, for twi_gedtm_m_120m_s_20060101_20151231_go_epsg.4326_v1.2.0.tif, the fields are: generic variable name: twi = topographic wetness index variable procedure combination: gedtm = derivative direct from global ensemble digital terrain model Position in the probability distribution/variable type: m = measurement Spatial support: 120m Depth reference: s = surface Time reference begin time: 20060101 = 2006-01-01 Time reference end time: 20151231 = 2015-12-31 Bounding box: go = global EPSG code: EPSG:4326 Version code: v1.2.0 = version from v1 (major), .2 (minor), .0 (bug fixed)坡度（度） 本数据属于全球集成数字地形模型（Global Ensemble Digital Terrain Model, GEDTM30）数据集的一部分，请参阅下方相关标识符章节以获取该数据集的其他分块内容。 ### 免责声明 本文件为全球集成数字地形模型（GEDTM30）多尺度地表参数（Multiscale Land Surface Parameters, LSPs）/地形衍生产品的v1.2版本，仅可用于测试用途。本项目受欧盟资助，但文中表达的观点仅代表作者本人，未必反映欧盟或欧洲委员会的立场。欧盟及授权机构不对本内容承担任何责任。本数据按“现状”提供。开放地球监测（Open-Earth-Monitor）项目联合体及其供应商与授权方特此声明放弃所有明示或暗示的担保，包括但不限于适销性、特定用途适用性以及不侵权的担保。开放地球监测项目联合体及其供应商与授权方亦不保证本网站无错误、访问不间断或无中断。您需自行承担从本网站下载或获取内容与服务的风险与责任。 ### 数据说明 地表参数（LSPs）是GEDTM30的衍生产品，用于表征局部地形位置、曲率、水文、光照与阴影特征。本数据集采用金字塔分层结构，为每一类地表参数生成30m、60m、120m、240m、480m及960m的多尺度分辨率。参数化流程基于Python环境下的Whitebox Workflows实现。如需查看文档，请访问我们的Codeberg仓库：https://codeberg.org/openlandmap/GEDTM30。 ### 数据集内容 本数据集包含： - 全球120m分辨率坡度（度）数据 - 全球240m分辨率坡度（度）数据 - 全球480m分辨率坡度（度）数据 - 全球960m分辨率坡度（度）数据 由于Zenodo的存储限制，高分辨率地表参数数据将通过外部链接提供： - 全球30m分辨率坡度（度）数据 - 全球60m分辨率坡度（度）数据 ### 相关标识符 - 数字地形模型：GEDTM30 - 地形地貌：坡度（度） - 光照与阴影：山体阴影（Hillshade） - 曲率：最小曲率、最大曲率、剖面曲率、切向曲率 - 局部地形位置：与平均高程差值、法向量球面标准差 - 水文：D8流向、单位汇水面积、LS因子、地形湿度指数 ### 数据详情 - 时间范围：静态数据 - 数据类型：源自数字地形模型的衍生属性 - 数据采集/衍生方式：本数据通过Whitebox Workflows衍生生成 - 所用方法：地表参数算法 - 数据局限性与排除范围：本数据集未包含南极洲地区的数据 - 坐标参考系统：EPSG:4326 - 边界框（Xmin, Ymin, Xmax, Ymax）：(-180, -64, 180, 89) - 空间分辨率：120m、240m、480m、960m - 图像尺寸：324000像素 × 138026行；162000像素 × 178219行；69013像素 × 89110行；34507行 × 17254行 - 文件格式：云优化地理TIFF（Cloud Optimized Geotiff, COG）格式 ### 补充信息 | 图层 | 尺度 | 数据类型 | 无数据值 | |------|------|----------|----------| | 与平均高程差值 | 100 | Int16 | 32767 | | 山体阴影（Hillshade） | 1 | UInt16 | 65535 | | LS因子 | 1000 | UInt16 | 65535 | | 最大曲率 | 1000 | Int16 | 32767 | | 最小曲率 | 1000 | Int16 | 32767 | | 剖面曲率 | 1000 | Int16 | 32767 | | 坡度（度） | 100 | UInt16 | 65535 | | 单位汇水面积 | 1000 | UInt16 | 65535 | | 法向量球面标准差 | 100 | Int16 | 32767 | | 切向曲率 | 1000 | Int16 | 32767 | | D8流向 | 1 | Uint8 | 255 | | 地形湿度指数 | 100 | Int16 | 32767 | ### 技术支持 若您发现漏洞、数据异常或不一致问题，或有任何疑问，请在此处提交Codeberg议题：https://codeberg.org/openlandmap/GEDTM30/issues ### 命名规范 为确保项目内外的命名一致性与易用性，本数据集遵循Ai4SoilHealth与Open-Earth-Monitor标准命名约定。该约定通过10个字段描述数据的关键属性，使用户无需打开文件即可检索文件、开展数据分析等工作。 例如：`twi_gedtm_m_120m_s_20060101_20151231_go_epsg.4326_v1.2.0.tif`，各字段含义如下： 1. 通用变量名：`twi` = 地形湿度指数 2. 变量与处理组合：`gedtm` = 直接源自全球集成数字地形模型的衍生数据 3. 概率分布位置/变量类型：`m` = 实测值 4. 空间支撑范围：`120m` 5. 深度参考：`s` = 地表 6. 时间参考起始时间：`20060101` = 2006-01-01 7. 时间参考结束时间：`20151231` = 2015-12-31 8. 边界框：`go` = 全球范围 9. EPSG代码：`EPSG:4326` 10. 版本代码：`v1.2.0` = 主版本v1、次版本.2、修复版本.0