Post on 19-Dec-2015
Centro de Conservación y Aprovechamiento de los Recursos Naturales (CECARENA), Centro de Conservación y Aprovechamiento de los Recursos Naturales (CECARENA),
Instituto Tecnológico y de Estudios Superiores de Monterrey (ITESM), Campus Guaymas.Instituto Tecnológico y de Estudios Superiores de Monterrey (ITESM), Campus Guaymas.Campus Guaymas
María Esther Cruz Colín, ITESM, Campus GuaymasJuan Antonio Delgado, ITESM, Campus Guaymas/ITMARStephen Monismith, Stanford UniversityArnoldo Valle-Levinson, CCPO, Old Dominion University, VA
Some Observations at Lobos Bay, 2004Some Observations at Lobos Bay, 2004
Environmental Studies for sustainable management of two bays of semidesertic
climate: El Tóbari y Lobos, Sonora, Mexico.
Start in Lobos (2004)
• February: CONACyT funds arrive.ADCP update (sent it to RDI -San Diego
delayed 3 months almost!), bought OD and pH CTD sensor.
• May: Set in Lobos weather station• June: Bathymetry• July: Proceessing data of Tobari, and Lobos• August: 35 days mooring at South inlet Lobos• September (21-25): Simultaneous transects at Lobos
inlets (we use equipment’s Tec and Old Dominion University).
• October: 35 days mooring at North inlet Lobos (now is there).
Attend to XII International Conference on Physics of Estuaries and Coastal Seas, 2004. Mérida, Yucatán, Mex.
•At its first part we worked in Tobari bay (2003), but we not finish yet, fault take sediments samples to distinguish the bottom sediments (to acomplish work’s Mike)•Proccessing data•Modelling
!
What do we expect to find?
• Some likeness Tóbari (or not).
• Delucidate who is responsible currents: tide, wind, density or bathymetry.
• Tools to understand the sediments, larvas, nutrients transport.
To get spatial variability of temperature, salinity, DO, pH,
monthly
Bathymetry
(mapping)
Hydrodgraphy Measurements at the
mouths (to get the spatial an temporal of the water
circulation at boths mouths
Take a sediments
samples (in order to description)
Desarrollo de un modelo numérico
(simulación numérica)
Set in place a Weather
Station
Working at Lobos BayWorking at Lobos Bay
Bahía Lobos
Bahía de Guaymas
Golfo de California
Bahía del Tóbari
Valle del Yaqui: Distrito de Irrigación
Longitude
Latit
ude
ADCP/CTD fix, August,2004
ADCP/CTD fix,
September-October, 2004
ADCP towed
September, 2004, simultaneously
Salinera del Valle
Lobos
Laying the weather station at salt fabric (Salinera del Valle, S.A. de C.V. –Thanks to Francisco Fernández Ortega, owner-chief manager)
Start to measure from beginning May, 2004.
dt = 15 mins.
Temperature, wind, HR, DewPt, Bar, Rain, UV, SolaRad, ET
Some results in Lobos
• Tide: Mixta Diurnal
• Temperature, Salinity, Density: diurnal variability.
• Density is in relation Salinity
cm/s
Spring tide
neap tide
Spring tide
neap tideCurrent (envolvente)
comp V, filtered
Temperature filtered
Residual flux at South inlet
adcp=4 mts
Wind direction
rain, tropical storm
Wind direction
rain, tropical storm
Howard, 09/03/2004
N
W E
SNet outflow
cm/s
Spring tide
neap tide
Spring tide
neap tide
Wind Direction from NW
Precipitation
Event anomally
1. Which mechanics produce this correlation?
2. Must be a physical process to gain O2 and biological to lost?
3. Why O2 decreases in a few time?
O2 max |ū| max
8
29August, 2004
O2
(mg
/L) |ū
| (m/s)
Rhumb (hypotesis)
• This suggest us that the residuals currents at Lobos are driven by synoptics wind principally.
• Due to high currents magnitudes the stratification is low.
• Lobos observations will be a tool to demonstrate that the causeway has been changed the residual circulation, producing a quick siltation.
Yaquis are not same Mayos.
• They are agree we make a project in Yaqui lagoon.
• They know the project (we give them a talk about).
• However they have a few lack of interesting and they aren´t involve, nevertheless they hold theirs lagoon healty.
Threat, but no impediment Threat, but no impediment
Information available to who incumbent in the Information available to who incumbent in the project (TEC, Stanford, SEMARNAT, CONACyT, project (TEC, Stanford, SEMARNAT, CONACyT, municipality, community, whos will be beneficiarymunicipality, community, whos will be beneficiary
Brochure, posters, internet Brochure, posters, internet (web), technical reports(web), technical reports
DiffusionDiffusion
Link with others areasLink with others areas
policy perspectivespolicy perspectives
who
how
what