This paper describes TerraHidro that is a distributed hydrologic modeling platform. TerraHidro is general purpose water resources system that presents a new concept to represent water flows based on graph structure, in the geographic information system (GIS) context. The drainage extractions and Amazonian basin delimitations using TerraHidro have been compared with ArcGis Hydro Tools regarding ...

Despite the arid to hyperarid climate of the Great Sahara of North Africa, pluvial climates dominated the region. Radar data shed some light on the postulated Trans-African Drainage System and its relationship to active and inactive tributaries of the Nile basin. Interpretations of recent elevation data confirm a source of the river water from the Red Sea highlands did not connect the Atlantic ...

Fractal dimensions have been frequently applied to generalize the complexity and drainage of particular stream networks. Certain techniques to calculate dimension have become particularly popular, specifically the Divider method, functional-box counting, and as a function between bifurcation and length ratios. The frequency and variability with which these techniques are applied creates discrep...

This paper aims to present terrain characteristics of Kuya river basin specially relief zoning, aspect analysis, hill shade view, its relation with drainage conditions etc. Analysis of SRTM data in ERDAS Imagine and Arc GIS software reveals that there is no siginificant relief difference between upper and lower catchment of the basin but distinction between upper and lower catchments is very cl...

BACKGROUND Lymphatic drainage from skin on the head and neck is complex. We sought to provide improved visualization and analysis of the patterns of head and neck skin lymphatic drainage using aggregated lymphoscintigraphy data. METHODS Lymphoscintigraphy data from 929 patients with cutaneous melanoma on the head and neck collected at the Sydney Melanoma Unit have been mapped onto a 3-dimensi...

This paper introduces the Soil and Water Assessment Tool (SWAT) as a tool of decision makings for the Integrated Lake Basin Management (ILBM). I show how the analytical framework is applied to one of drainage watersheds in Laguna de Bay in Philippines toward sustainable lake basin management through the ILBM-Governance project.

This work presents the necessary steps to obtain the quantitative parameters of a superficial drainage basin, using digital image processing techniques such as segmentation and mathematical morphology.

OBJECTIVE To analyze the predictors and patterns of recurrence of melanoma in patients with a negative sentinel lymph node biopsy result. DESIGN Retrospective chart review of a prospectively created database of patients with cutaneous melanoma. SETTING Tertiary university hospital. PATIENTS A total of 515 patients with melanoma underwent a sentinel lymph node biopsy without evidence of meta...

BACKGROUND Aberrant lymphatic drainage is believed to contribute to the high recurrence rate of head and neck melanomas. The purpose of this study was to identify the clinical significance of unexpected lymphatic drainage patterns. METHODS A single institution retrospective analysis was performed of middle-aged and older men (mean age, 66.2 years; range, 41-87 years) who underwent successful ...

(UMRB) is a major sub-basin of the entire Mississippi River, one of the largest and most diverse ecosystems in North America. The length of the Upper Mississippi River (UMR) is approximately 800 miles (1,287 km). The drainage area of the basin is approximately 189,189 square miles (489,980 km2) and contains about 15 percent of the drainage area of the entire Mississippi River Basin. The Basin i...