MBRS Watershed Hydrology Ro Motagua Ro Chamelecn and
MBRS Watershed Hydrology Río Motagua, Río Chamelecón and Río Ulúa Paul Kirshen & Ned Spang
Watersheds “an area of land within which all waters flow to a single river system” ---Heathcote 1998 “the specific land area that drains water into a river system or other body of water” ---The World Bank
Features of a Typical Watershed Overland flow Groundwater flow Reef
w Countries: Guatemala, Honduras w Watershed Area: 12, 670 km 2 Río Motagua w Guatemala: 10, 529 km 2 w Honduras: 2, 141 km^2 w Average Annual Precipitation: 1, 400 mm w Length: 487 km w Average Discharge: 530 m^3/sec Source: Gulf of Honduras: Preliminary Transboundary Diagnostic Analysis, Final Draft (August 2003) Abt Associates/ Woods Hole Group, Global Environment Facility--Inter. American Development Bank Project Development Facility (PDF-B), pp. 5 -6. Photo Source: www. guate 360. com/galeria/postcards. php
Río Motagua: Monthly Flow Hydrograph - 2004 (Morales) Resumen De Estaciones Hidrometricas De La Republica De Guatemala, (2005) INSIVUMEH, Guatemala.
Río Motagua: Water Use/Availability Source: Vorosmarty, C. J. , P. Green, J. Salisbury and R. B. Lammers. 2000. Global water resources: vulnerability from climate change and population growth, Science, 289: 284 -288.
Water Quality Stations Station 1 a Rio Hondo: -Station 1 a Rio Motagua: -Gualán Gualan Puente Orellan a -Puente Orellana
Lead in Río Motagua: Water Quality Source: adapted from “Calidad de Agua de los Rios de La Republica de Guatemala” (December 2003), INSIVUMEH, Guatemala
Phosphate – P Río Motagua: Water Quality 2 Source: adapted from “Calidad de Agua de los Rios de La Republica de Guatemala” (December 2003), INSIVUMEH, Guatemala
Río Motagua: Water Quality 3 Total Dissolved Solids Turbidity Source: adapted from “Calidad de Agua de los Rios de La Republica de Guatemala” (December 2003), INSIVUMEH, Guatemala
Río Motagua: Water Quality 4 Dissolved Oxygen (mg/L) Dissolved Oxygen Saturation (%) Source: adapted from “Calidad de Agua de los Rios de La Republica de Guatemala” (December 2003), INSIVUMEH, Guatemala
Motagua: Conclusions w Findings & Stresses: w Sufficient water quantity to meet needs w Natural hydrology: peak rainfall conducive to high levels of erosion w Even the limited water quality shows water quality stress and the value of water quality sampling w Potential exists for future water quality problems from point and non-point source threats w Climate Change? w Interventions: w Expand water quantity and quality monitoring w Manage land use to respond to present and potential water quality threats w Ensure effective management of wastewater w Harmonization of transboundary water management
Río Chamelecón w Countries: Honduras w Watershed Area: 4, 350 km^2 w Average Annual Precipitation: 1, 445 mm/yr w Length: 256 km w Average Discharge: ~370 m^3/sec Source: Gulf of Honduras: Preliminary Transboundary Diagnostic Analysis, Final Draft (August 2003) Abt Associates/ Woods Hole Group, Global Environment Facility--Inter-American Development Bank Project Development Facility (PDF-B), pp. 5 -6. Image Source: pr. water. usgs. gov/public/ rt/hn/chamelecon. html
Río Chamelecón: Monthly Precipitation Source: Adapted from GIS Data Disc Provided By Secretaría de Agricultura (SAG), Honduras
Río Chamelecón: Monthly Flow Hydrograph (Chamelecón) Source: Secretaria de Recursos Naturales y Ambiente (SERNA), Direccion General de Recursos Hidricos, Departamento de Servicios Hidrologicos y Climatologicos (1972 -1992)
Río Chamelecón: Water Use/Availability Source: Vorosmarty, C. J. , P. Green, J. Salisbury and R. B. Lammers. 2000. Global water resources: vulnerability from climate change and population growth, Science, 289: 284 -288.
Río Chamelecón: Conclusions w Findings & Stresses: w Sufficient water quantity to meet needs w Significant lack of water quality data w Potential exists for future water quality problems from point and non-point source threats w Natural hydrology: peak rainfall conducive to high levels of erosion w Climate Change? w Interventions: w Develop effective water quality monitoring programs w Maintain consistent water quantity monitoring w Manage land use to respond to potential water quality threats w Ensure effective management of wastewater
Río Ulúa w Countries: Honduras w Watershed Area: 21, 230 km^2 w Average Annual Precipitation: 1, 510 mm/yr w Length: 358 km w Average Discharge: ~690 m^3/sec Source: Gulf of Honduras: Preliminary Transboundary Diagnostic Analysis, Final Draft (August 2003) Abt Associates/ Woods Hole Group, Global Environment Facility--Inter-American Development Bank Project Development Facility (PDF-B), pp. 5 -6. Photo Source: http: //trurl. acusd. edu/~najmici/zdjecia/pan_am/h_barbara 1. jpg
Río Ulúa: Monthly Precipitation Source: Adapted from GIS Data Disc Provided By Secretaría de Agricultura (SAG), Honduras
Río Ulúa: Monthly Flow Hydrograph (Ulúa en Chinda) Source: Secretaria de Recursos Naturales y Ambiente (SERNA), Direccion General de Recursos Hidricos, Departamento de Servicios Hidrologicos y Climatologicos (1972 -1992)
Río Ulúa: Water Use/Availability Source: Vorosmarty, C. J. , P. Green, J. Salisbury and R. B. Lammers. 2000. Global water resources: vulnerability from climate change and population growth, Science, 289: 284 -288.
Río � Ulúa: Conclusions w Findings & Stresses: w Sufficient water quantity to meet needs in most areas w Significant lack of water quality data w Potential exists for future water quality problems from point and non-point source threats w Natural hydrology: peak rainfall conducive to high levels of erosion w Climate Change? w Interventions: w Plan for potential supply/demand imbalance in eastern portion of the watershed w Develop effective water quality monitoring programs w Maintain consistent water quantity monitoring w Manage land use to respond to potential water quality threats w Ensure effective management of wastewater
Motagua, Chamelecón and Ulúa: Hydrograph
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