RBW/Telecons

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Contents

  1. Dec 8, 2010 (Weigel's Notes)
  2. Nov 19 2010
    1. Jacob's Notes
  3. Oct 22, 2010

1. Dec 8, 2010 (Weigel's Notes)

O'Brien has posted simulated RBSP locations for the CRRES interval plotted in the Li figure: rbspa.cdf | rbspb.cdf

Kondrashov and Shprits have provided reconstructed solar wind data for the intervals [1]

From Steve Morely to Weigel:

Here's the status of LANL particle data for the CRRES era. GPS:
  • Across the lifetime of CRRES we only have data from ns18, which flew a BDD-II dosimeter. This data has been carefully calibrated by Tom Cayton in collaboration with colleagues from ONERA. CDF files of these flux data can be made available for the study intervals. We can provide some more information, caveats, etc. about this data.
GEO:
  • MPA/SOPA/ESP fluxes are available from:
  • 1989-046 -- September 1989 onwards
  • 1990-095 -- November 1990 onwards
The other birds active at that time were flying CPA instruments, which covered the much of the range of MPA/SOPA/ESP. Of these (1982-019, 1984-129 and 1987-097), 1987-097 has the most consistent coverage. We can make the SOPA/ESP fluxes available for the study intervals, but it should be noted that there are some potentially large uncertainties in the ESP fluxes (we have a note on this in the electronic supplement to the Reeves et al. paper currently in press in JGR). I'll need to make further inquiries about the CPA data, but we should be able to make some of that available for the given intervals. The MPA data are available for the dates given above. CDAweb seems to only have coverage from 1993, and I'll look into why. Hopefully we would be able to provide MPA, but I'll try to confirm that before the mini-GEM.

Weigel notes that Geoff Reeves has posted a preprint of the article mentioned below [2]. He has also sent me a copy of the README associated with the data that will posted as an electronic supplement 2010JA015735-readme.txt.

2. Nov 19 2010

  • Next telecon on Dec 8th at 1:00 Eastern
  • Scot and Jacob presented storm proposal Image:LiFigure+chickenscratch.png Media:CRRES_dst.txt (text file listing the day of year and date, together with hourly Dst values for comparison with the figure)
  • Jacob will send out list and notes

2.1. Jacob's Notes

Firstly the (M,K) pairs:

  1. 1860 MeV/G, K=0 (high energy ~1 MeV at GEO, equatorial)
  2. 1860 MeV/G, K=0.1 (high energy ~1 MeV at GEO, off equatorial)
  3. 750 MeV/G, K=0 (medium energy, equatorial)
  4. 750 MeV/G, k=0.1 (medium energy, off equatorial)
  5. 550 MeV/G, k=0 (low energy, equatorial).

Then the storm periods:

We chose the period 1 Feb 1991 - July 31 1991 for the "long runs". The beginning of that (1 Feb) marks the beginning of a storm that goes down to -79 nT at 23:00, and takes a few days to recover back up to > -10 nT at the end of Feb 4.

The individual storm periods are:

  1. Feb 1 1991: Dst min -79 nT at 23:00 Feb 1st, ends on Feb 5 (extended recovery - great for rad belt formation)
  2. Mar 24 1991: Dst min -298 nT at 00:00 Mar 25, to Mar 31. We have to include this as an extreme case. (rad belt codes need to be able to do this!)
  3. May 17 1991: Dst min -105 nT at 09:00 May 17, to May 19 ~16:00. (nice classic storm, everyone needs to be able to get this one)
  4. Jun 5th 1991: Dst min -223 nT at 19:00 Jun 5, gets up to -14 nT on 9 Jun 1991 at 01:00 and dips down again to -140 on the 10th, 11th, 12th, 13th and 14th before recovering properly on the 17th. (great multi-dip storm)
  5. Jul 9th 1991: Dst min -194 at 14:00 July 9, get back > -10 nT on July 12th at 11:00 (and good classic case).
  6. An additional storm identified today as an injection event: Feb 23rd, 1991: Dst min -26 at 07:00 Feb 23, and continues to dip down to ~ -20 until about Mar 3.

Finally the training period: We selected Oct and Nov 1990 as the training period, on Oct 10, 1990 and Nov 27, 1990 there are 2 large storms and a few smaller ones in between.

3. Oct 22, 2010

  • Yuri's CRRES reanalysis [3] and (more recent) [4]
  • RBW FG Report 2010 [5]
  • NASA/ADS search for published papers with CRRES in abstract [6]
  • Nagai has provided access to Akebono data from July 1, 1990 to September 31st, 1991.
Dear Prof. Nagai

As part of the GEM conference, we are holding a "campaign" in which a
group of scientists collectively evaluate their models on a common set
of data. Here is an example from many years ago
[http://leadbelly.lanl.gov/GEM_Storms/GEMstorms.html]. One of the data
sets that we are interested in including is Akebono data from July 1,
1990 to September 31st, 1991.

Would you be willing to allow this group (about 20 scientists) to have
access to this data set?  If so, what are your preferences for
acknowledgment and would you like to be notified before any of the
data are presented or published (beyond that specified at
[http://darts.isas.jaxa.jp/stp/akebono/])?

Thanks,

Bob Weigel
Dear Bob,

The Akebono/RDM data are available at

http://www.geo.titech.ac.jp/lab/nagai/nagai/GEM/

The data format is seen in the file "information.txt".

The summary plots are seen at

http://www.geo.titech.ac.jp/lab/nagai/nagai/Radiation_Belts/

I would like to see any drafts before publication,
since I avoid misusage of the RDM data. Of course, I am interested in your works.

If you have any questions, do not hesitate asking me.
However, I will be out next week.

Sincerely yours,
Tsugunobu

PI of RDM/Akebono
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