[Oracles-flight-planning] Planning for routine flights
Patrick W. Hillyard
patrick.hillyard at nasa.gov
Mon May 23 19:58:22 PDT 2016
The error has been corrected and the video resposted. The link and file
name are the same.
Pat
From: Steven Howell [mailto:showell at soest.hawaii.edu]
Sent: Monday, May 23, 2016 11:31 AM
To: Patrick W. Hillyard
Cc: 'Jens Redemann'; oracles-flight-planning at espo.nasa.gov
Subject: Re: [Oracles-flight-planning] Planning for routine flights
Looks like you swapped the end longitudes of the 5 and 15 S tracks. If we go
farther north, we can't go as far west.
Steve
On May 23, 2016, at 7:52 AM, Patrick W. Hillyard <patrick.hillyard at nasa.gov>
wrote:
User is 'ORACLES' and password is '2_dry_2_run'
Pat
From: Jens Redemann [mailto:Jens.Redemann-1 at nasa.gov]
Sent: Monday, May 23, 2016 10:52 AM
To: Patrick W. Hillyard; oracles-flight-planning at espo.nasa.gov
Subject: Re: [Oracles-flight-planning] Planning for routine flights
Thanks, Pat. Could you remind us of the login info?
Thx,
Jens
On 5/23/2016 10:50 AM, Patrick W. Hillyard wrote:
Hi all,
A new movie has been posted to bocachica that has the IR imagery, 600mbar
flow, and 3 legs of Steve's flight tracks on it - 5S, 10S, and 15S. The 9
hour flight legs are plotted with asterisks placed where the 8 hour flight
ends. The direct link to the video is
<http://bocachica.arc.nasa.gov/ORACLES/sat/ir/IR_600mbar_track.mov>
http://bocachica.arc.nasa.gov/ORACLES/sat/ir/IR_600mbar_track.mov
It is also available on the webpage at
<http://bocachica.arc.nasa.gov/ORACLES/sat/ircalendar.html>
http://bocachica.arc.nasa.gov/ORACLES/sat/ircalendar.html
Note that like the other video, it is too large to be opened in the browser.
You will need to first download the video to your computer and then play it.
Pat
From: oracles-flight-planning [
<mailto:oracles-flight-planning-bounces at espo.nasa.gov>
mailto:oracles-flight-planning-bounces at espo.nasa.gov] On Behalf Of Jens
Redemann
Sent: Friday, May 13, 2016 11:47 AM
To: <mailto:oracles-flight-planning at espo.nasa.gov>
oracles-flight-planning at espo.nasa.gov
Subject: Re: [Oracles-flight-planning] Planning for routine flights
See response below. Thanks, Lenny.
Jens
On 5/12/2016 6:58 PM, Leonhard Pfister wrote:
(1) I will ask Pat if he can draw these on the imagery. If he can draw the
met fields, we can certainly draw flight plans.
These plans are easy enough that no kml file is needed, since three or four
points define each plan.
That's great. Thanks for asking Pat.
(2) I understand the logic of the east-west leg -- the idea being to follow
the BB plume as it descends into the cloud.
And yes, the climo winds, even down to 850mb show easterlies to 10-15S, with
bending occurring between those two
latitudes as Steve says. We are spending a lot of time going northward and
southward near the coast, though. Is this
productive?. Should we consider heading NW and then eastward following the
curve of the 600mb flow (and then retracing that
backwards)?
That's an interesting idea. I have no preference. The basic idea was to give
the climate modelers something repetitive for model testing. I am not sure
if a constant-latitude leg is essential for that. Maybe Rob and Paquita can
chime in here?!
Jens
L.
On 5/12/16 5:12 PM, Jens Redemann wrote:
Hi Steve,
thanks for doing this - I finally had some time to look at this. You have
put a lot of thought into this and I am not sure what the best way for a
productive discussion is. My gut feeling is that the most productive way
(because it receives the most diverse feedback) to move forward is to
discuss this during the STM in June, as part of the flight planning
activities. I am attaching a preliminary agenda, in which I scheduled this
discussion under your leadership for Saturday morning (the whole agenda is
still in flux, but the list of topics should be near-final). As you can see,
the major push for the June in-person STM will be to discuss flight planning
and plans. We could provide a preview in our May telecon next week?!
By way of upfront commentary, I think my strong preference would be for
routine flight plans that reach far out into the SE Atlantic. I wonder if we
could task somebody to overlay the pattern you drew up onto the satellite
imagery or even some Worldview combination of RGB and AOD retrievals. That
could be quite useful. If you send out a kmz or digital file with the
coordinates, maybe we could ask Lenny to take a crack at this?!
I think your scoring of the flight plan for what you call mechanical
characteristics may change a bit as we learn more form the instrument PI's
about their instrument preferred mode(s) of operation - this will be part of
the homework for next week and the STM - I am hoping to get to that homework
assignment tomorrow.
Thanks again for spurring the discussion,
Jens
On 5/10/2016 8:51 PM, Steven Howell wrote:
Hi all,
Having sent out a sample routine flight plan last September with no
responses, I figure I'll try again to get the conversation going. I've
attached the plan I sent before, but also want to illustrate the tradeoffs
between latitude and time surveying.
I'm assuming a high altitude transit to a target latitude, then a survey to
the west at varying altitudes, more or less like the attached plan. It takes
about 3 hours to get to 15 S and back, and an additional 12 minutes (round
trip) for each additional degree north. So we lose an hour of survey time by
choosing 10 S rather than 15 S. During the survey, I assume an average
flight speed of 136 m/s. That reflects time spent low and climbing, when the
P-3 slows by 15 m/s.
My original plan is for 15 S, but the 600 mbar wind / IR movie makes it seem
like 15 is often at the very southern edge of the outflow, where it is
turning south. It seems to me that going farther north might be worthwhile,
but it'll mean long transits. I wanted to superimpose the plots below on the
movie, but didn't come up with an easy way to do it.
The first map below shows the distances surveyed in 8 hour routine flights.
The second is for 9 hour flights. Given the weight problems we've heard so
much about, I don't know whether 9 hour flights are possible.
Steve
On Sep 29, 2015, at 3:23 PM, Steven Howell
<mailto:showell at soest.hawaii.edu> <showell at soest.hawaii.edu> wrote:
> Hi,
>
> I was going to bring this up during the telecon, but after 2 hours I
decided to simply write it out instead.
>
> We agreed at the meeting that what we learned during the dry run should be
used to evaluate possible routine flight plans. We might as well do that
while our memories are fresh. In the attached document, I've listed possible
criteria for comparing candidate flight plans and applied some of them (the
easy ones) to the routine flight plan from the proposal.
>
> Is this a productive way to start? I'd welcome suggestions for changing
the criteria, for modifications to the flight plan, and for entirely
different flight plans. I need help trying to figure out how to gauge
whether the flight plan was useful on any particular day, given the
meteorology and aerosols estimated as well as practical from satellite and
model measurements.
>
> I'm willing to make a few more candidate flight plans for us to evaluate.
What I have in mind are:
> 1) Essentially the proposal plan but avoiding Angolan airspace and
spending another half hour above the BB plume, sacrificing an in-situ leg.
> 2) Extend to a 10 hour plan.
> 3) Move to 12 S.
>
> Are these worth looking at?
>
> Thanks,
> Steve
>
>
> <routine_flight_criteria_SH.docx>
> --
> Steven Howell, University of Hawaii, Department of Oceanography
>
> "Irrigation of the land with seawater desalinated by fusion power is
ancient. It's called 'rain'." -- Michael McClary, in alt.fusion
>
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"There is at the back of all our lives an abyss of light, more blinding and
unfathomable than any abyss of darkness; and it is the abyss of actuality,
of existence, of the fact that things truly are, and that we are ourselves
incredibly and sometimes almost incredulously real." (G. K. Chesterton)
from <http://nielsenhayden.com/makinglight/>
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NASA Ames Research Center
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Bldg. 245, Rm. 106
P.O. Box 1
Moffett Field, CA 94035-0001
USA
cell#1: (805) 218-8729 cell#2: (650) 318-8407 work: (650) 604-6259
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Physical Research Scientist, Principal Investigator ORACLES
NASA Ames Research Center
Jens Redemann/Mail Stop 245-5
Bldg. 245, Rm. 106
P.O. Box 1
Moffett Field, CA 94035-0001
USA
cell#1: (805) 218-8729 cell#2: (650) 318-8407 work: (650) 604-6259
email: <mailto:Jens.Redemann-1 at nasa.gov> Jens.Redemann-1 at nasa.gov
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"Nobody panics when things go according to plan. Even when the plan is
horrifying." (The Joker)
from http://nielsenhayden.com/makinglight/
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