Tierra del Fuego sea front

Strait of Magellan tidal levels and currents Forecast

In order to obtain the Tidal levels and currents Forecast for the points P1, P2 and P3 you must click the relevant point on Figure 1

Figure 1. Tidal levels and currents Forecast zone bathymetry. Position of the points with data available online.

Pronóstico de Niveles y Corrientes de Marea en Golfo San Jorge P3 P2 P1

Product references

  • Product: Numerical simulation of the tide levels and currents course at Strait of Magellan and Tierra del Fuego sea front
  • Coverage: Strait of Magellan and Tierra del Fuego sea front (see Figure 1)
  • Model: MIKE 3 HD (DHI) references in www.dhigroup.com (Licensed to Ezcurra & Schmidt SA)
  • Time frame: 2 months minimum from current date
  • Calculus Nodes: 210 x 251
  • Distance between calculus nodes: 1000 m
  • Points available online:
    • P1: 67º 00’ W – 53º 30’ S (local depth = 75 m at MSL*)
    • P2: 67º 30’ W – 53º 00’ S (local depth = 75 m at MSL*)
    • P3: 68º 00’ W – 52º 30’ S (local depth = 33 m at MSL*)
  • Time and date reference: UTC-3 (dd/mm/yyyy hh:mm)
  • Data: Tidal levels and velocities at 10 m below MSL*
  • Sea levels reference: MSL* in meters
  • Currents velocity units: m/s
  • Currents direction units: degrees to where the current is headed, 0 represents north and increases clockwise

* MSL = mean sea level

The Tidal levels and currents Forecast is currently in trials and revision mode. Please send your comments to: gdanieli@essa.com.ar


Model validation

A validation of the simulations was made based on the SHN prediction of sea levels in Port of Rio Grande, Bay of San Sebastián and Strait of Magellan (Eastern Mouth) of SHN. Figures 2 and 3 and 4 present the comparison between the Tide Charts and MIKE 3 HD for February 2016.

Figure 2. Comparison between SHN high and low tides and MIKE 3 HD Tide Tables for February 2016 in Port of Rio Grande (Tierra del Fuego).tdf-figura2

Figure 3. Comparison between SHN high and low tides and MIKE 3 HD Tide Tables for February 2016 in Bay of San Sebastián (Tierra del Fuego). 

tdf-figura3

Figure 4. Comparison between SHN high and low tides and MIKE 3 HD Tide Tables for February 2016 in eastern mouth of Strait of Magellan.tdf-figura4

Results

In order to illustrate the results of the model, Figures 4 and 5 are presented with 2 different conditions of the currents field in the simulated zone.

Figure 4. Bathymetry (in colors) and currents field (in vectors) in Tierra del Fuego, speeds in rising tide conditions. Note: The number of vectors shown correspond to 1 in 6 both in rows and columns, so that currents can be better appreciated.

TDF_creciendo-web

Figure 5. Bathymetry (in colors) and currents field (in vectors) in Tierra del Fuego, speeds in falling tide conditions. Note: The number of vectors shown correspond to 1 in 6 both in rows and columns, so that currents can be better appreciated.

TDF_bajando-web