mbrs watershed hydrology

MBRS Watershed Hydrology

MBRS Watershed Hydrology

Yucatán Peninsula & Río Hondo

Yucatán Peninsula & Río Hondo

Yucután PeninsulaYucután Peninsula Countries: Mexico (Quintana Roo State) State/Watershed Area: 50,212 km2 Average Discharge: 7,700 Mm3/year Average Annual Rainfall: 1,258 mm

Countries: Mexico (Quintana Roo State) State/Watershed Area: 50,212 km2 Average Discharge: 7,700 Mm3/year Average Annual Rainfall: 1,258 mm

Sources Quantity Mm3/year Rain 60,000 Surface runoff from Belize & Guatemala 500

Outflows Evapotranspiration 52,800 Surface Discharge to the Ocean 1,500 Underground Discharge 5,850 Extraction 350

Sources Quantity Mm3/year Rain 60,000 Surface runoff from Belize & Guatemala 500

Outflows Evapotranspiration 52,800 Surface Discharge to the Ocean 1,500 Underground Discharge 5,850 Extraction 350

Source: “Sinopsis Geohidrologia del Estado de Quintana Roo, Secretaria de Agricultura y Recursos Hidraulicos, Comision Nacional de Agua CAN, 1988Rainfall Source: Source: Statistics: Water in Mexico, Edición 2004, Unified System for Basic Data on Water (SUIBA), SEMARNAT, CNA.

Quintana Roo Department: Monthly Precipitation

Quintana Roo Department: Monthly Precipitation

0

50

100

150

200

250

Month

Avera

ge P

reci

pit

ati

on

(m

m)

Source: Statistics: Water in Mexico, Edición 2004, Unified System for Basic Data on Water (SUIBA), SEMARNAT, CNA.

Quintana Roo:

Water Use/

Availability

Quintana Roo:

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.

Yucatán: Water Quality - Groundwater

Yucatán: Water Quality - Groundwater

2002: national water quality monitoring network was redesigned: Primary network = 362 permanent stations: 205 surface, 44

coastal, 113 aquifers. Secondary network = 276 mobile stations: 231 surface, 17 coastal,

and 28 aquifers. Reference Network = 104 additional stations explicitly for

groundwater. Aquifers in Quintana Roo Dept. and Yucatan State: not

overexploited, no significant salt-water intrusion, soil salinization or brackish groundwater

2002: national water quality monitoring network was redesigned: Primary network = 362 permanent stations: 205 surface, 44

coastal, 113 aquifers. Secondary network = 276 mobile stations: 231 surface, 17 coastal,

and 28 aquifers. Reference Network = 104 additional stations explicitly for

groundwater. Aquifers in Quintana Roo Dept. and Yucatan State: not

overexploited, no significant salt-water intrusion, soil salinization or brackish groundwater

Source: Statistics: Water in Mexico, Edición 2004, Unified System for Basic Data on Water (SUIBA), SEMARNAT, CAN, p. 44, p. 35.

Yucatán: Water Quality - Surface Water

Yucatán: Water Quality - Surface Water

Biochemical Oxygen Demand (BOD): 100% of Yucatan peninsula stations show “unpolluted” with BOD

less than 6mg/L (typical of natural waters) Chemical Oxygen Demand (COD):

86.6% of Yucatan stations show unpolluted COD (less than 20 mg/L, typical of natural waters)

6.7% show “good quality” (20mg/L<X<100mg/L, water with organic matter)

6.7% show “Indications of pollution” (100mg/L<X<250mg/L, presence of wastewater, mostly urban)

Biochemical Oxygen Demand (BOD): 100% of Yucatan peninsula stations show “unpolluted” with BOD

less than 6mg/L (typical of natural waters) Chemical Oxygen Demand (COD):

86.6% of Yucatan stations show unpolluted COD (less than 20 mg/L, typical of natural waters)

6.7% show “good quality” (20mg/L<X<100mg/L, water with organic matter)

6.7% show “Indications of pollution” (100mg/L<X<250mg/L, presence of wastewater, mostly urban)

Source: Statistics: Water in Mexico, Edición 2004, Unified System for Basic Data on Water (SUIBA), SEMARNAT, CAN, p. 44.

Yucatán: ConclusionsYucatán: Conclusions

Findings & Stresses: Sufficient water quantity

to meet needs Summary of water

quality: presently there are minimal water quality problems

Potential exists for future water quality problem from point and non-point source threats

Climate change?

Findings & Stresses: Sufficient water quantity

to meet needs Summary of water

quality: presently there are minimal water quality problems

Potential exists for future water quality problem from point and non-point source threats

Climate change?

Interventions: Continue and

expand water quantity and quality monitoring programs

Manage land use to respond to potential water quality threats

Ensure effective management of wastewater

Interventions: Continue and

expand water quantity and quality monitoring programs

Manage land use to respond to potential water quality threats

Ensure effective management of wastewater

Río HondoRío Hondo Countries: Mexico,

Belize, Guatemala Watershed Area: 14,708

km^2 Mexico: 8,825 km^2 Belize: 3,010 km^2 Guatemala: 2,873 km^2

Average Annual Precipitation: 1,574 mm

Length: 205 km Average Discharge: N/A

Countries: Mexico, Belize, Guatemala

Watershed Area: 14,708 km^2 Mexico: 8,825 km^2 Belize: 3,010 km^2 Guatemala: 2,873 km^2

Average Annual Precipitation: 1,574 mm

Length: 205 km Average Discharge: N/A

Source: Statistics: Water in Mexico, Edición 2004, Unified System for Basic Data on Water (SUIBA), SEMARNAT, CAN, p. 35.Photo source: http://www.elbalero.gob.mx/explora/images/quintana/qroopaisa.gif

Río Hondo: Water Use/

Availability

Río Hondo: 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 StationsWater Quality StationsStation

1a

Puente Orellan

a

Gualan

Río Hondo:

-Station 1a

Río Motagua:

-Gualán

-Puente Orellana

Dissolved Oxygen (mg/L) Dissolved Oxygen Saturation (%)

Sampling Date

01-F

eb-0

4

01-A

pr-0

4

01-J

un-0

4

01-A

ug-0

4

01-O

ct-0

4

01-D

ec-0

4

Dis

solv

ed O

xyge

n (m

g/L)

2.0

2.5

3.0

3.5

4.0

4.5

5.0

5.5

Sampling Date

01-F

eb-0

4

01-A

pr-0

4

01-J

un-0

4

01-A

ug-0

4

01-O

ct-0

4

01-D

ec-0

4

Dis

solv

ed S

atur

atio

n %

20

30

40

50

60

70

80

90

Río Hondo: Water Quality, 2004

Río Hondo: Water Quality, 2004

Source: Monitoreo De La Contaminación Marina En La Bahía De Chetumal, Reporte Anual 2003 and 2004, Secretaria De Marina - Armada De Mexico, Sector Naval Yukalpeten, Direccion General Adjunta De Oceanografia, Estacion De Investigacion Oceanografica Progreso, Yuc.

Phosphate – P

Sampling Date

01-

Feb

-04

01-

Ap

r-0

4

01-

Jun-

04

01-

Au

g-04

01-

Oct

-04

01-

De

c-04

Pho

spha

te-P

(m

g/L)

0.00

0.02

0.04

0.06

0.08

0.10

0.12

0.14

0.16

Eutrophic (0.05 mg/L)

Río Hondo: Water Quality 2 2004

Río Hondo: Water Quality 2 2004

Source: Monitoreo De La Contaminación Marina En La Bahía De Chetumal, Reporte Anual 2003 and 2004, Secretaria De Marina - Armada De Mexico, Sector Naval Yukalpeten, Direccion General Adjunta De Oceanografia, Estacion De Investigacion Oceanografica Progreso, Yuc.

Diagnostic for Sustainable Water Management in the International Río

Hondo Watershed, Mexico-Belize, 2025

Diagnostic for Sustainable Water Management in the International Río

Hondo Watershed, Mexico-Belize, 2025

Study Objectives - Natural Framework: Climate, Geology, Flora and

Fauna Surface and Subterranean

Hydrography Water Quality Extreme Meteorological

Phenomena State of water-related soil

degradation

Study Objectives - Natural Framework: Climate, Geology, Flora and

Fauna Surface and Subterranean

Hydrography Water Quality Extreme Meteorological

Phenomena State of water-related soil

degradation

Source: Terminos de Referencia para la Realización del Estudio “Diagnóstico para el Manejo Sustenable del Agua en la Cuenca Internacional del Rio Hondo, México-Belice, al Año 2025, Comisión Nacional del Agua, Gobierno del Estado de Quintana Roo, Mayo 2004

Study Objectives - Additional Frameworks: Socioeconomic

and Demographic

Legal and Institutional

Water Sustainability

Study Objectives - Additional Frameworks: Socioeconomic

and Demographic

Legal and Institutional

Water Sustainability

Río Hondo: ConclusionsRío Hondo: Conclusions

Findings & Stresses: Sufficient water quantity

to meet needs Currently a significant

lack of both quantity and water quality data

Potential exists for future water quality problems from point and non-point source threats

Natural hydrology: peak rainfall conducive to high levels of erosion

Climate Change?

Findings & Stresses: Sufficient water quantity

to meet needs Currently a significant

lack of both quantity and water quality data

Potential exists for future water quality problems from point and non-point source threats

Natural hydrology: peak rainfall conducive to high levels of erosion

Climate Change?

Interventions: Develop effective water

quantity and quality monitoring programs

Manage land use to respond to potential water quality threats

Ensure effective management of wastewater

Improve coordination for transboundary watershed management

Interventions: Develop effective water

quantity and quality monitoring programs

Manage land use to respond to potential water quality threats

Ensure effective management of wastewater

Improve coordination for transboundary watershed management