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2 edition of Daily magnetograms for 1982 from the AFGL network found in the catalog.

Daily magnetograms for 1982 from the AFGL network

David J. Knecht

Daily magnetograms for 1982 from the AFGL network

by David J. Knecht

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  • 8 Currently reading

Published by Space Physics Division, Air Force Geophysics Laboratory in Hanscom AFB, MA .
Written in English

    Subjects:
  • Magnetic fields -- Observations.,
  • Geomagnetism -- United States -- Observations.

  • Edition Notes

    StatementDavid J. Knecht.
    GenreObservations.
    SeriesAFGL-TR -- 85-0031., Special reports -- no. 247., Special reports (U.S. Air Force Geophysics Laboratory) -- no. 247.
    ContributionsU.S. Air Force Geophysics Laboratory. Space Physics Division.
    The Physical Object
    Paginationv, 425 p. :
    Number of Pages425
    ID Numbers
    Open LibraryOL17783145M

      [, ] and shall be briefly summarized: As input data a sequence of photospheric magnetic maps composed of daily magnetograms is used. A source surface current sheet model is used to extrapolate the HMF, which is then fed into an MHD code with an inner radial grid boundary at R gb = AU = R ⊙.Cited by: AFL Live Official App. Watch every game LIVE of the Toyota AFL Premiership Season, Toyota AFL Finals Series, and Marsh Community Series. Subscribe through the Apple App Store or the Google Play Store for $ per week, $ per month or $ for an annual pass.

    The magnetograms are arranged by longi- tude; red traces correspond to low-magnetic-latitude observa- tories and blue lines to observatories at high latitudes. The initial (I), main (M), and recovery (R) phases are discussed in the text. The circled anticorrelations between high- and low- latitude magnetograms are indicative of substorms. Total Electron Content Variations Over Magnetic Equatorial And Equatorial Anomaly Regions Of The Eastern African Sector - Oryema Bosco - Master's Thesis - Physics - Other - Publish your bachelor's or master's thesis, dissertation, term paper or essay.

      This paper reviews our attempts to understand the transport of magnetic flux on the Sun from the Babcock and Leighton models to the recent revisions that are being used to simulate the field over many sunspot cycles. In these models, the flux originates in sunspot groups and spreads outward on the surface via supergranular diffusion; the expanding Cited by:   The daily variations of the geomagnetic field components were in close agreement with Chapman's model of the equatorial electrojet. The result of the network of geomagnetic observations in northeast Brazil from November to March also showed normal electrojet variations, both with time of the day and with latitude (Rigoti ).Cited by:


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Daily magnetograms for 1982 from the AFGL network by David J. Knecht Download PDF EPUB FB2

Get this from a library. Daily magnetograms for from the AFGL network. [David J Knecht; U.S. Air Force Geophysics Laboratory. Space Physics Division.]. Genre/Form: Observations: Additional Physical Format: Online version: Knecht, David J.

Daily magnetograms for from the AFGL network. Hanscom AFB, MA: Space Physics Division, Air Force Geophysics Laboratory, []. Daily magnetograms for from the AFGL network /, by David J.

Knecht and U.S. Air Force Geophysics Laboratory (page images at HathiTrust) Daily Magnetograms for from the AFGL network /, by David J. Knecht and U.S. Air Force Geophysics Laboratory (page images at HathiTrust) DARPA neural network study final report / (Lexington, Mass.

Fluxgate data for every month of the period has been deposited in World Data Center A. Daily magnetograms have been produced and will be published by AFGL. Some preliminary processing data to establish substation conductivity was initiated.

The Network was discontinued in December This book has been cited by the following publications. This list is generated based on data provided by CrossRef. Moser, Gabriele Zerubia, Josiane Serpico, Sebastiano B.

and Benediktsson, Jon A. Cited by:   The calibration of the HVVM has been discussed by Ai et al. (), Wang et al. (a), and Wang et al. (b). Specifically, for the HVVM data (Wang et al. b), B t = × 10 3 × (Q 2 + U 2) 1/4 Gauss. The noise level of the original magnetograms is usually less than 20 G for B z and about G for B t.

Field-aligned current signatures in the near-tail region. Daily magnetograms for from the AFGL (Air Force Geophysics Laboratory) network. A stacked plot of hour magnetograms from. Employing daily full-disk MW magnetograms recorded between andLi & Ulrich determined the tilt angles of active regions based on the flux-weighted centroids of the leading- and trailing-polarity sectors.

Since the period that they studied nearly coincides with that covered by the DPD database, it is interesting to compare their. The American Astronomical Society (AAS), established in and based in Washington, DC, is the major organization of professional astronomers in North America.

Its membership of. We use full-disk soft X-ray data from Yohkoh and Kitt Peak daily magnetograms to study the coronal irradiance and photospheric magnetic field remote from active regions between November and. Solar radius measurements, a by-product of the magnetograms recorded several times daily at Mt.

Wilson Observatory over a period of a few decades, have revealed apparent variations of. Filed under: Meteorology -- Research Report of the Climate Data Management Workshop, Harpers Ferry, West Virginia, May/ ([Washington]: National Oceanic and Atmospheric Administration, ), by W.

Va.) Climate Data Management Workshop (. Stokes profiles in regions such as sunspots, plage, network, and decaying regions typically have S/N ≥and so the typical errors are expected to be in this range.

The noise levels in the SOLIS magnetograms are estimated to be a few Gauss in the longitudinal and 70 Gauss in the transverse field measurements (Tadesse et al. ).Cited by: Small-scale solar features identifiable on the quiet sun in magnetograms of the line-of-sight component consist of network, intranetwork, ephemeral region.

AFGL satellite accelerometer experiments during the period These data, obtained over a wide range of solar and geomagnetic conditions, have resulted in assessment of the present status and improvement prospects of our capability to specify and forecast neutral atmospher- ic by:   Active regions appear bright in Ca II nm line core intensity while the surrounding areas, referred to as circumfacular regions, are darker than the active region or the quiet Sun.

We use Synoptic Optical Long-term Investigations of the Sun Vector Spectromagnetograph Ca II nm data (photospheric and chromospheric full disk magnetograms Cited by: 3. With this model, Yang et al. carried out a time-dependent MHD study of the global corona driven by synoptic magnetograms updated daily.

As part of continued efforts toward data-driven modeling, Feng et al. () employed magnetograms from GONG updated every six hours to drive the photospheric boundary of their MHD model including both corona Cited by: 6. ADS Bibliographic Codes: Non-refereed Publications Battery Workshop SPIE international conference on Fourier transform infrared spectroscopy batt work The Goddard Space Flight Center Battery Workshop eepa rept Eclipse of International Conference antc work Advanced Network and.

Fig. 1 shows wavelet power spectra calculated for daily numbers of major Hα flare events (top panels) and daily numbers of magnetically complex active regions (bottom panels) during solar cycle 20 covering CR numbers – The high angular frequency spectra (left panels) show a clear signal at ∼ days during CR numbers – almost simultaneously in both Cited by: 3.

series of monthly means of daily sums of the local geomag- netic K index (Ki) for the period from October to De- cember (10/–12/) – see Sect. for the de. the data of the Network were upgraded.

Fluxgate data for every month of the period has been depositied in World Data Center A. Daily magnetograms have been produced and will be published by AFGL.

Some preliminary processing data to Author: John F Devane.Transition region and coronal observations of bright points by instruments aboard the Solar Maximum Mission were accompanied by high resolution photos Cited by: 5. Daily magnetograms are used by overlaying them and for overlapping regions a weighted average is employed with the weighting factor as a function of longitudinal distance and sharply peaking at the location of the Sun's central meridian at the time of observation [Arge and Pizzo, ].

By the time the following edges of subsequent magnetograms Cited by: