National-scale geodatabase of catchment characteristics in the Philippines for river management applications.
National-scale geodatabase of catchment characteristics in the Philippines for river management applications.
复制标题
菲律宾的河流管理应用程序集水特征的国家尺度地理数据库。
DOI：
10.1371/journal.pone.0281933
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发表时间：
2023
期刊：
影响因子：
3.7
通讯作者：
中科院分区：
文献类型：
--
作者：
河流网络和流域特征的定量描述提供了宝贵的背景下，使地貌知情的可持续河流管理。对于拥有高质量地形数据的国家，有机会开放获取系统评估地貌和地形特征的基线产品。在这项研究中，我们提出了一个全国范围内的菲律宾河流系统的基本地形特征的评估。我们使用TopoSurvey V2应用一致的工作流程，使用2013年获得的全国数字高程模型（DEM）描绘河流网络和河流集水区，并通过机载干涉合成孔径雷达（IfSAR）生成。我们评估了128个中型至大型集水区（集水区面积> 250平方公里）的形态和地形特征，并将结果组织在国家级地理数据库中。该数据集实现了地形数据作为河流管理应用程序的一部分的潜力，通过使水文形态的变化特征和背景化。该数据集被用来揭示在菲律宾的河流网络和流域的多样性。集水区有一个连续的形状（Gravelius紧凑系数范围从1.05到3.29），排水密度范围从0.65到1.23公里/平方公里。平均集水坡度范围为3.1至28.1°，平均河流坡度变化超过一个数量级，从0.004至0.107 m/m。流域间的分析显示了相邻河流流域的独特的地形特征;吕宋岛西北部的例子突出了流域之间的地形相似性，而班乃岛的例子显示了明显的地形差异。这些对比突出了使用基于地点的分析可持续河流管理应用的重要性。通过设计一个交互式ArcGIS Web应用程序来显示国家级地理数据库，我们提高了数据的可访问性，使用户能够自由地访问、浏览和下载数据（https：glasgow-uni.maps.arcgis.com/apps/webappviewer/index.html? id=a88b9ca0919f4400881eab4a26370cee）。国家级地理数据库提供了对基本地形特征的基本了解，以支持各种地貌、水文和地质灾害敏感性应用。
Quantitative descriptions of stream network and river catchment characteristics provide valuable context for enabling geomorphologically-informed sustainable river management. For countries where high-quality topographic data are available, there are opportunities to enable open access availability of baseline products from systematic assessment of morphometric and topographic characteristics. In this study, we present a national-scale assessment of fundamental topographic characteristics of Philippine river systems. We applied a consistent workflow using TopoToolbox V2 to delineate stream networks and river catchments using a nationwide digital elevation model (DEM) acquired in 2013 and generated through airborne Interferometric Synthetic Aperture Radar (IfSAR). We assessed morphometric and topographic characteristics for 128 medium- to large-sized catchments (catchment area > 250 km2) and organised the results in a national-scale geodatabase. The dataset realises the potential of topographic data as part of river management applications, by enabling variations in hydromorphology to be characterised and contextualised. The dataset is used to reveal the diversity of stream networks and river catchments in the Philippines. Catchments have a continuum of shapes (Gravelius compactness coefficient ranges from 1.05 to 3.29) with drainage densities that range from 0.65 to 1.23 km/km2. Average catchment slope ranges from 3.1 to 28.1° and average stream slope varies by more than an order of magnitude from 0.004 to 0.107 m/m. Inter-catchment analyses show the distinctive topographic signatures of adjacent river catchments; examples from NW Luzon highlight topographic similarity between catchments whereas examples from Panay Island shown marked topographic differences. These contrasts underline the importance of using place-based analyses for sustainable river management applications. By designing an interactive ArcGIS web-application to display the national-scale geodatabase, we improve data accessibility and enable users to freely access, explore and download the data (https://glasgow-uni.maps.arcgis.com/apps/webappviewer/index.html?id=a88b9ca0919f4400881eab4a26370cee). The national-scale geodatabase provides a baseline understanding of fundamental topographic characteristics in support of varied geomorphological, hydrological and geohazard susceptibility applications.
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影响因子：
6.4
作者：
Cohen, Sagy;Wan, Tong;Syvitski, J. P. M.
通讯作者：
Syvitski, J. P. M.
影响因子：
3.5
作者：
Brierley, Gary;Fryirs, Kirstie
通讯作者：
Fryirs, Kirstie
影响因子：
7.1
作者：
Boongaling, Cheamson Garret K.;Faustino-Eslava, Decibel V.;Lansigan, Felino P.
通讯作者：
Lansigan, Felino P.
DOI：
10.1007/s00254-002-0601-4
发表时间：
2002-11-01
期刊：
ENVIRONMENTAL GEOLOGY
影响因子：
--
作者：
David, CP
通讯作者：
David, CP
影响因子：
5
作者：
Barbosa, Natalie;Andreani, Louis;Ratschbacher, Lothar
通讯作者：
Ratschbacher, Lothar