Dear All:
For the question raised by Dharam the information provided by Professor
Hoogenboom is clear.Thanks for the same.Here i would like to give some
formulae how i calculate means of daily,monthly and annual temperature for
my research works in Hyderabad, India are:
1.Mean temperature of a day=Readings at 7am +2pm+9am+9pm/ 4.
2.Average temperature of a day=Maximum temp+Minimumtemp/2.
3.Mean monthly temperature=sum of daily means of the month for all days/days
of a month.
4.Mean annual Temperature=Sum of 12 monthly means/12.
(I take the readings from the thermometers located in Stevenson screen and
they are liquid in glass type).
Dr.Murthy,Associate Professor(Agronomy)ANGRAU, Hyderabad,India,500030.


>From: Dharam Dabas <[log in to unmask]>
>Reply-To: DSSAT - Crop Models and Applications <[log in to unmask]>
>To: [log in to unmask]
>Subject: Re: Meaning of temperature amplitude.
>Date: Thu, 19 Dec 2002 11:18:18 +0500
>
>Dear friends,
>
>Thank to Dr Murthy for his response. I wish to restate my question to
>you all so that I get the appropriate reply.
>
>The quantity <Temperature Amplitude> is a Station Data. So it must be
>an attribute of the station. The quantity must be the mean of several
>years for that station.
>
>There can be several temperature amplitudes of the type Dr Murthy has
>defined, diurnal, weekly, monthly or annual swing in the temperture
>values over the period.
>
>My question was which of above quantity is to be used and how to obtain
>or calculate the same.
>
>Dharam Singh Dabas
>CCS Haryana Agricultural University,
>Hisar 125004 India
>
>----- Original Message -----
>From: vasiraju murthy <[log in to unmask]>
>Date: Wednesday, December 18, 2002 7:05 pm
>Subject: Re: Meaning of temperature amplitude.
>
> > Dear Dr.Dharam,
> > Kindest regards,
> > I give the meaning of Amplitude:In any oscillatory motion of a
> > quantityamplitude means the amount of displacement.This meaning is
> > applied to the
> > motion of an air particle displaced by a sound wave.In case of a
> > pendulamthe amplitude is half the length of the swing.Perhaps,
> > temperature amplitude
> > means the average of diurnal variation ( mean of maximum
> > temperature of the
> > day Plus minimum temperature of the day).
> > I further verify and come back to you.
> > Sincerely,
> > Dr.V.R.K.Murthy,Associate
> > professor(Agronomy).ANGRAU,Hyderabad,A.P.India.
> >
> >
> >
> >
> >
> > >From: Dharam Dabas <[log in to unmask]>
> > >Reply-To: DSSAT - Crop Models and Applications
> > <[log in to unmask]>>To: [log in to unmask]
> > >Subject: Meaning of temperature amplitude.
> > >Date: Wed, 18 Dec 2002 10:47:42 +0500
> > >
> > >Dear friends,
> > >
> > >What does the TEMPERATURE AMPLITUDE (oC) for a station means and
> > how do
> > >I calculate it from the daily weather data of the weather station?
> > >
> > >Temperature amplitude is required in the STATION DATA when I edit the
> > >STATION INFORMATION under the menu STATION in the weatherman in
> > DSSAT.>
> > >Thanks for your kind help,
> > >
> > >Dharam S Dabas
> > >CCS Haryana Agricultural University,
> > >Hisar 125004 India
> >
> >
> > _________________________________________________________________
> > Help STOP SPAM with the new MSN 8 and get 2 months FREE*
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