#!/usr/bin/perl
#--------------------
#
# Program Name: dailysum.cgi
#
# Created by: Steven Fierro
# Unix and Networking Specialist
# Millersville University
#
# For use by the Meteorology Department of MU
#
# Activation Date: April 1997
# Revised: April 30, 1997
# May 02, 1997
# May 05, 1997
# May 09, 1997
# May 12, 1997
# May 16, 1997
# June 02, 1997
# June 03, 1997
# June 04, 1997
# June 11, 1997
# June 23, 1997
# February 1, 1999 -dbf
# January 3, 2005 -dbf
# Updated for new web server
#
# Copyright 1997; all rights reserved.
#--------------------
#
# This program is designed to take weather data collected
# via RainWise equipment and software and create a daily
# summary for display through a WWW browser in tabular form.
# This program will run via cron, but can be run at anytime.
#
# Due to the need to deal with the local Lancaster newspaper,
# two copies of this program have been created. This one is
# used for the mid-mid max and min, the other is used to
# allow the paper to get the info in time for them to go to
# press.
#
# This program will be run just after midnight.
#
# modified 12/99 by david fitzgerald to use the wls8000 weather data
#--------------------
#------ Here's where the fun begins ------#
#------
# Variable initialization
#------
#@DATA = `tail -2500 /var/data/tower/weather.dat`; # Obtain the data
# have to skip last line in wls8000 data file as it is often incomplete to to buffereing
@DATA = `tail -2501 /data/wls8000/weather.TXT | head -2500`;
$start = ""; # used to obtain starting rain value.
$last = ""; # used to obtain ending rain value.
$basemax = -99; # used as base to determine max temp.
$basemin = 99; # used as base to determine min temp.
$basewind = 0; # used as base to determine peak wind speed.
chop($year = `date '+%Y'`); # Determine the current year
chop($monthnum = `date '+%m'`); # Determine the current month number
chop($testday = `date '+%d'`); # Determine the current day of the month
# Array used to obtain the month name for year-to-date max/min temps
%MONTHS = (
'01', 'January',
'02', 'February',
'03', 'March',
'04', 'April',
'05', 'May',
'06', 'June',
'07', 'July',
'08', 'August',
'09', 'September',
'10', 'October',
'11', 'November',
'12', 'December',
);
#------
# Since this program gets run the next day; we need to determine the date
# of the day before
#------
#if ($testday == 1) {
# if ($monthnum eq "04" || $monthnum eq "06" || $monthnum eq "09" || $monthnum eq "11") {
# $day = 30;
# }
# if ($monthnum eq "02") {
# $day = 28;
# }
# else {
# $day = 31;
# }
#}
# modified 990201 for logic errors in determining previous days daynumber
# since this script is run the day AFTER the day the data is for. -dbf
if ($testday == 1) {
# if the previous day was in Feb and we have to figure out if it was leap year.
if($monthnum eq "03") {
$rem = $year%4;
# yes its leap year and previous day was the 29th.
if($rem == 0) {
$day = 29;
}
# no its not leap year and previous day was the 28th.
else {
$day = 28;
}
}
elsif($monthnum eq "05" || $monthnum eq "07" || $monthnum eq "10" || $monthnum eq "12") {
# in this case the previous day was in either April, June, Sept, or November.
$day = 30;
}
else {
$day = 31;
}
}
# if not the first day of the month we can simply subtract one from day.
else {
$day = $testday - 1;
}
#------
# Since we are using the date before the current; we need to account for
# when the month changes as well.
#------
if ($testday == 1) {
if ($monthnum == 1) {
$monthnum = 12;
}
else {
$monthnum--;
if ($monthnum < 10) {
$monthnum = "0$monthnum";
}
}
}
#------
# Now that we figured out what day, month, etc to use lets prepare the files
#------
chop($rainfile = `date '+$monthnum%y-cumrain.txt'`); # Determine rainfall file
chop($yearfile = `date '+%Y-cumrain.txt'`); # Determine yearly rain file
chop($outfile = `date '+$monthnum%y.html'`); # Setup output file
chop($yearrain = `cat $yearfile.tmp`); # Get the current yearly rainfall
chop($cumrain = `cat $rainfile.tmp`); # Get the current cumulative rainfall
chop($infomax = `cat $year-max.txt.tmp`); # Get year to date max info
($yrmaxtemp, $yrmaxmon, $yrmaxday) = split(/ +/, $infomax);
chop($infomin = `cat $year-min.txt.tmp`); # Get year to date min info
($yrmintemp, $yrminmon, $yrminday) = split(/ +/, $infomin);
open(OUTPUT, ">> $outfile.tmp"); # Prepare filehandle for output
#------
# Scan through @DATA and process the info for $day
#------
foreach $element (@DATA) {
@line = split(" ", $element);
$numfields = scalar @line;
if( $numfields eq 12 ) { # skip lines with bad data
($placeholder, $time, $date, $winddir, $windspd, $solar, $intemp, $outtemp, $rh, $barometer, $rainday, $rainmon, $raintot) = split(/ +/, $element);
# strip off units
chop $solar;
chop $intemp;
chop $outtemp;
chop $rh;
chop $barometer;
substr($windspd, -3) = "";
# make integers of the temperature and wind speed data
$outtemp = int($outtemp);
$windspd = int($windspd);
# strip off junk at end of rain data
substr($rainday, -2) = "";
substr($rainmon, -2) = "";
substr($raintot, -4) = "";
# strip off year from the date
substr($date, -3) = "";
#$time2 = substr($time,1); # Get rid of leading " from time
#$date2 = substr($date,1); # Get rid of leading " from date
$time2 = $time;
$date2 = $date;
# put daily rain info in variable used in original script.
$rain = $rainday;
($mon, $d) = split('/', $date2); # Used to look only at the
if ($mon == $monthnum && $d == $day) { # data in @DATA that matches
if ($start eq "") { # $day. Then find the
$start = $rain; # max/min/peak values.
}
&correctdata();
$last = $rain;
}
} # end if bad line
} # End of foreach loop
$dailyrain = $last - $start; # Calculate daily rainfall
$monthrain = $cumrain + $dailyrain; # Calculate monthly rainfall
$yearrain = $yearrain + $dailyrain; # Calculate yearly rainfall
open(RAIN, "> $rainfile.tmp"); # Keep track of the monthly rainfall
printf RAIN "%2.2f\n", $monthrain; # in a file for future use
close RAIN;
open(YEAR, "> $yearfile.tmp"); # Keep track of the yearly rainfall
printf YEAR "%2.2f\n", $yearrain; # in a file for future use
close YEAR;
#------
# Verify if the new max/min values are greater/lesser than yearly total
# to date.
#------
if ($basemax > $yrmaxtemp) {
$yrmaxtemp = $basemax;
$yrmaxmon = $MONTHS{$monthnum};
$yrmaxday = $day;
open(YRMAX, "> $year-max.txt.tmp");
print YRMAX "$yrmaxtemp $yrmaxmon $yrmaxday\n";
close YRMAX;
}
if ($basemin < $yrmintemp) {
$yrmintemp = $basemin;
$yrminmon = $MONTHS{$monthnum};
$yrminday = $day;
open(YRMIN, "> $year-min.txt.tmp");
print YRMIN "$yrmintemp $yrminmon $yrminday\n";
close YRMIN;
}
#------
# Store the aquired information to $outfile
#------
chomp $monthnum;
chomp $day;
chomp $basemax;
chomp $maxtime;
chomp $basemin;
chomp $mintime;
chomp $basewdir;
chomp $wintime;
chomp $basewind;
chomp $dailyrain;
printf OUTPUT "\n| $monthnum/$day | $basemax
($maxtime) | $basemin
($mintime) | $basewdir
($wintime) | $basewind
($wintime) | %2.2f |
\n\n", $dailyrain;
#------
# Do this if the current day ($testday) is the first of the month
#------
if ($testday == 1) {
final_html();
head_html();
}
#------
# Subroutine to use to determine the max and min temps and peak wind speed
# for valid data (i.e. data from @DATA that matches is for $day.
#------
sub correctdata {
if ($outtemp > $basemax) {
$basemax = $outtemp;
$maxtime = $time2;
}
if ($outtemp < $basemin) {
$basemin = $outtemp;
$mintime = $time2;
}
if ($windspd > $basewind) {
$basewind = $windspd;
$basewdir = $winddir;
$wintime = $time2;
}
} # End of subroutine
#------
# Subroutine used to close out $outfile: mmyy.html
#------
sub final_html {
printf OUTPUT "\n | | | | Total
Rainfall: | %2.2f | \n
\n\n", $monthrain;
print OUTPUT "\n\n\n";
print OUTPUT "\n";
printf OUTPUT "\nYear-to-date rainfall: %2.2f in.\n\n\n", $yearrain;
print OUTPUT " \n