Form filling instructions
Interaction between user and the program installed in the server to reconstruct and visualize Sea Level and Currents for a given time interval depends on the proper filling of the request form where ruling parameters are set. Therefore, care must be exerted in order to provide all of the valid parameters –into their proper ranges- necessaries to start the computation of sea level and currents without errors and finish the process in the minimum time possible.
In order to reduce input error from the user, we must be familiar with the meaning of the form page parameters to introduce, and valid rules between them. For input parameters out of rules the submit button is disabeled and the user can't continue until adjust and select right parameters .
Next we deal with some util definitions previous to write the rules (pointed as 'Rules' at the end of this page)..
The meanings of the arguments you must provide are:
Initial Date: Is the Day, Month and Year of the first data to be computed. Initial Hour is by default the in GMT.
Final Date: Is the Day, Month and Year of the last data to be computed. Default value is .
Harmonics Selection: Where user must chose the tidal constituents wanted to be included in the calculation. Available options are grouped in function of their frequency band values. The constituents included in the different options are:
S2, N2 and
Diurnal O1, P1 and K1
Semidiurnal and Diurnal Both of the above options
Seasonal Mm, Msm, Semiannual and Annual
All All of the above constituents plus N2S2, Mf, Msf
Data Type: Here the user selects the variable to be computed, the sampling rate, the region in the gulf where the variable is computed, and, for some cases, the output of the results. These options are explained next.
Variable: Is the type of data variable desired to obtain between Sea Level (Heights referred to the Mean Sea Level or level 0 only), Currents in predetermined levels (see below), or Both.
Sampling rate: Is the time interval between samples. Options are:
12 mi Time Interval of 12 minutes
20 mi Time Interval of 20 minutes
30 mi Time Interval of 30 minutes
1 hr Time Interval of 1 hour
2 hr Time Interval of 2 hours
1 dy Time Interval of 24 hours
1 wk Time Interval of 168 hours or 7 days
15 dy Time Interval of 15 days
1 mn Time Interval of 30 days
Level (m). Is the nominal depth of the mean currents between the upper and lower interface of each model layer. The options are:
5 m Between the surface elevation and 10 m
15 m Between 10 and 20 m depth
25 m Between 20 and 30 m depth
45 m Between 30 and 60 m depth
80 m Between 60 and 100 m depth
125 m Between 100 and 150 m depth
175 m Between 150 and 200 m depth
225 m Between 200 and 250 m depth
300 m Between 250 and 350 m depth
475 m Between 350 and 600 m depth
800 m Between 600 and 1000 m depth
2000 m Between 1000 m depth and the bottom
Region. The area or point from where user wants to get data. You may select from following options:
A Point in the Map. A point on the sensible map is chosen with the mouse
Northern Gulf. Animations will be made for the northern part of the Gulf
Central Gulf. Animations will be made for the central part of the Gulf
Southern Gulf. Animations will be made for the southern part of the Gulf
Full Gulf. Animations will be made for the whole Gulf
Output. Is the output you request to visualize the data. Options are for:
A Point in the Map: Data as text or Graphic as an image in format 'jpg'
Northern, Central, Southern or Full Gulf: an animation in format 'mpg' and the last image of the animation in format 'jpg'.
8784 if 'A Point in the Map' is chosen (e.g., with a sampling rate of 1 hour you obtain 8784 hr which is ~ 1 year, a sampling rate of 15 min you obtain 8784/4 hrs = 2196 hr ~ 3 months)
72 frames if ‘Region’ is chosen and for one
variable (e.g., 20 min sampling you obtain 72/3 hrs = 1 day)
24 if ‘Region’ is chosen with 'Both' variables.