') ;
writeln('
This web page gives access to animations of continuous hindcasts with the most recent model version. For the global model data are available starting late January 1997, for the regional models starting July 1999. These hindcasts have been run after the fact with archived wind and ice fields. Presented are wave heights (Hs) and peak periods (Tp), regenerated with WAVEWATCH III version 2.22. The animations start at the cold start of the model, and thus the first month(s) show the model spin-up behavior. Particularly, the period plot for the global model for Feb. 1997, shows that the model needs approximately 2 weeks to spin up its Pacific swell properly. The corresonding binary data in GRIB format are available from our ftp server.') ;
writeln('
WARNING : The animation files are typically 4 to 6Mb large. It will take considerable time to download such a file, depending on the speed of your internet connection.') ;
writeln("
To display the model, month and parameter as selected above, click the 'go' button above (select a model to replace the 'Infopage' choice above). If the data for the month and model selected are not available, the nearest month following the selected month will be displayed, rotating back to the first available month if the last month is reached. the '<-' and '->' buttons give the previous and next month, respectively.") ;
writeln(' ') ;
} ;
}
//
// Display graphix otherwise
//
else {
animation='/history/waves/' ;
switch (iModel) {
case 2 :
animation += 'akw.' ;
break ;
case 3 :
animation += 'wna.' ;
break ;
case 4 :
animation += 'nah.' ;
break ;
case 5 :
animation += 'enp.' ;
break ;
case 6 :
animation += 'nph.' ;
break ;
default :
animation += 'nww3.' ;
} ;
switch (iPar) {
case 1 :
animation += 'tp.' ;
break ;
default :
animation += 'hs.' ;
} ;
animation += 'anim.' ;
if ( month < 10 ) {
animation += year + '0' + month ;
}
else {
animation += year + month ;
} ;
animation += '.gif' ;
document.writeln('
 ') ;
} ;
//
// Finish page with bottom links and end of form
//
with (document) {
writeln('
') ;
writeln('Last update : August 04, 2009 | Last data : 2009/07 ') ;
writeln('
') ;
writeln('MMAB page |') ;
writeln('Main wave model page |') ;
writeln('Tabular interface') ;
writeln('Point of contact : ') ;
writeln(''
+ 'waves@ncep.noaa.gov ') ;
writeln('') ;
writeln('' ) ;
writeln('') ;
writeln('') ;
} ;
document.close() ;
return true ;
} ;
function evalHist(increment) {
var firstYearMonth, lastYearMonth, yearMonth ;
var modelIndex, monthIndex, month, yearIndex, year, parIndex ;
var i, missingIt ;
//
// Extract form information
//
modelIndex=document.selector.model.selectedIndex ;
monthIndex=document.selector.month.selectedIndex ;
month=1+monthIndex ;
yearIndex=document.selector.year.selectedIndex ;
year=document.selector.year.options[yearIndex].text ;
parIndex=document.selector.par.selectedIndex ;
//
// Set year / month constants
//
switch ( modelIndex ) {
case 2 : firstYearMonth = 199907 ;
lastYearMonth = 200711 ;
var missing = new Array ( ) ;
var numMissing = 0 ;
break ;
case 3 : firstYearMonth = 199907 ;
lastYearMonth = 200711 ;
var missing = new Array ( ) ;
var numMissing = 0 ;
break ;
case 4 : firstYearMonth = 200008 ;
lastYearMonth = 200907 ;
var missing = new Array ( '200011' , '200012' , '200101' , '200102' , '200103' , '200104' , '200105' , '200107' , '200201' , '200202' , '200203' , '200204' , '200205' , '200206' , '200211' , '200212' , '200301' , '200302' , '200303' , '200304' , '200305' , '200401' , '200402' , '200403' , '200404' , '200405' , '200501' , '200502' , '200503' , '200504' , '200505' , '200601' , '200602' , '200603' , '200604' , '200605' , '200612' , '200701' , '200702' , '200703' , '200704' , '200801' , '200802' , '200803' , '200804' , '200805' , '200812' , '200901' , '200902' , '200903' , '200904' , '200905' ) ;
var numMissing = 52 ;
break ;
case 5 : firstYearMonth = 200208 ;
lastYearMonth = 200711 ;
var missing = new Array ( ) ;
var numMissing = 0 ;
break ;
case 6 : firstYearMonth = 200308 ;
lastYearMonth = 200907 ;
var missing = new Array ( '200804' ) ;
var numMissing = 1 ;
break ;
default : firstYearMonth = 199701 ;
lastYearMonth = 200907 ;
var missing = new Array ( ) ;
var numMissing = 0 } ;
//
// Increment if wanted
//
if ( increment < 0 ) {
month = month - 1 ;
if ( month < 1 ) {
month = 12 ;
year = parseInt(year) - 1 ;
year = '' + year ;
} ;
} ;
if ( increment > 0 ) {
month = month + 1 ;
if ( month > 12 ) {
month = 1 ;
year = parseInt(year) + 1 ;
year = '' + year ;
} ;
} ;
//
// Check year and month
//
if ( month < 10 ) { yearMonth = year + '0' + month }
else { yearMonth = year + month } ;
if ( yearMonth > lastYearMonth ) {
year = parseInt(firstYearMonth/100,10) ;
month = firstYearMonth % 100 ;
} ;
if ( yearMonth < firstYearMonth ) {
year = parseInt(lastYearMonth/100,10) ;
month = lastYearMonth % 100 ;
} ;
//
// Missing months, find month that is there
//
if ( numMissing != 0 ) {
missingIt = 1 ;
while ( missingIt != 0 ) {
missingIt = 0 ;
for ( i = 0; i < numMissing ; i++ ) {
if ( missing[i] == yearMonth ) {
missingIt = missingIt + 1 ;
} ;
} ;
if ( missingIt != 0 ) {
if ( increment < 0 ) {
month = month - 1 ;
if ( month < 1 ) {
month = 12 ;
year = parseInt(year) - 1 ;
year = '' + year ;
} ;
}
else {
month = month + 1 ;
if ( month > 12 ) {
month = 1 ;
year = parseInt(year) + 1 ;
year = '' + year ;
} ;
} ;
if ( missingIt != 0 ) {
if ( month < 10 ) { yearMonth = year + '0' + month }
else { yearMonth = year + month } ;
} ;
} ;
} ;
} ;
//
// Display new page / image
//
displayHist(modelIndex, month, year, parIndex ) ;
return true ;
} ;
function delayHist(delaytime) {
//
// Delay first display of page by several seconds
//
setTimeout("displayHist(0,0,0,0)",delaytime) ;
return true ;
} ;
|
');
writeln('