Thanks Jim - here is some data:
u <- array(NA,c(5,8))
t <- seq(from=0.5, to=0.11,length=15)
t2 <- seq(from=(-0.7),to=(-0.1),length=25)
u[1:15] <- t
u[16:40] <- t2
v <- array(NA,c(5,8))
y <- seq(from=(-0.9), to=(-0.01),length=40)
v[1:40] <- y
I've made up the data but it's similar magnitude and the longitude
direction is u and latitude direction is v as in the real data.
I really appreciate your help!
Jenny
On Tue, 29 Apr 2008, Jim Lemon wrote:
Jenny Barnes wrote:
Hi Jim,
I would like to plot something like figure 2 on this webpage:
http://www.cnrfc.noaa.gov/storm_summaries/jan1997storms.php
My data is very large - covering the whole globe at 2.5deg resolution so
longitude=144 girds, latitude=73 grids and time=32 years - hard to give you
that data......Would it help to give you a couple of grid squares worth of
data for one year?
Okay, Figures 2 and 3 look like 5 degree squares, and given a larger plot,
2.5 degree should be okay. Do you want curved arrows? That would take some
programming as the standard arrows are straight. Also, the arrows in the
figures all seem to be the same length. I can make the lengths proportional
to wind speed. Yes, some data would be helpful, as getting the right plot
usually involves trying out real data. Doesn't matter if it's faked as long
as it has the same format and similar numbers to the real thing.
Jim
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