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Schefferville (SCHF) Ground-based Vector Magnetic Field (L2) 0.5 s Data

Schefferville, QC, Ground-based Vector Magnetic Field Level 2 Data, 0.5 s Time Resolution, Station Code: (SCHF), Station Location: (GEO Latitude 54.8, Longitude 293.2), AUTUMNX Network

Fort Simpson (FSIM) Ground-based Vector Magnetic Field (L2) 0.5 s Data

Fort Simpson, NT, Ground-based Vector Magnetic Field Level 2 Data, 0.5 s Time Resolution, Station Code: (FSIM), Station Location: (GEO Latitude 61.8, Longitude 238.8), THEMIS GBO/Carisma Network

Small Synoptic Charts of the Line-of-Sight Component of the Photospheric Magnetic Field

This map is produced by applying a boxcar average to the high-resolution line-of-sight synoptic map, hmi.Synoptic_Ml_720s.Synoptic charts are maps of the entire Sun produced in Carrington coordinates. Synoptic maps are constructed by merging together solar observations taken over many days. Magnetic-field synoptic charts are produced using central meridian data from HMI full-disk magnetograms.Synoptic maps are constructed from HMI 720s line-of-sight Magnetograms collected over a 27-day solar rotation. Near-central-meridian data from 20 magnetograms contribute to each point in the final map.HMI 720s line-of-sight magnetograms are first converted to 'radial field magnetograms' by dividing by the cosine of the angle from disk center, i.e. for this purpose we assume that HMI measures the line-of-sight component of a purely radial magnetic field. Individual 'radial' magnetograms are then remapped and interpolated onto a very high-resolution Carrington coordinate grid. For each Carrington longitude the values from the 20 magnetograms obtained closest in time to the central meridian passage (CMP) of that longitude are averaged. By using a constant number of contributing magnetograms, the variation of the noise over the entire map is minimized. Generally all data are taken within about 2 degrees of CMP. The effective temporal width of the HMI synoptic map contribution is about three hours, i.e. 20 720-s magnetograms are obtained within about 90 minutes of central meridian passage. The final HMI synoptic maps have a size of 3600 x 1440, which means the resolution is lower than the disk-center resolution of a single HMI magnetogram. A two-dimensional Gaussian function is applied to high-resolution remapped data to reduce the spatial resolution before generating the 3600*1440 synoptic maps. The width of the Gaussian is 3 pixels. The upper limit of the noise is 2.3 Mx cm2.

restrictedus-pdMar 2025View details →

MEX: MARSIS ELECTRON PLASMA DENSITY AND MAGNETIC FIELD DATA

This data set tabulates local electron densities and local magnetic field strengths magnetic field strengths obtained from Mars Advanced Radar for Subsurface and Ionosphere Sounding (MARSIS) Active Ionospheric Sounding (AIS) mode ionograms. The electron density is obtained by measuring the increment in frequency between the plasma frequency harmonics, visible as bright vertical lines at low frequency and delay time in many MARSIS ionograms. Similarly, the local magnetic field strength is found by measuring the difference in delay time between electron cyclotron echoes, visible as bright horizontal lines at low frequency on many ionograms. Both the measured quantity and the derived result are included in the archive product. We also include a data quality flag giving the impression of the archivist as to how reliable each result is. This archive product includes only data from the nominal mission, which starts about orbit 1850 and ends on orbit 2539.

STEREO-B In-Situ Measurements of Particles and CME Transients (IMPACT) Fluxgate Magnetometer (MAG) Burst Mode, Magnetic Field Vector, Spacecraft (SC) Coordinates, Level 1 (L1), 31 ms Data

This data product contains Level 1 0.03125-s or 32 Hz burst-mode values of solar wind magnetic field data measured by the IMPACT Magnetometer on STEREO-B in Spacecraft, SC, coordinates.

Richardson (RICH) Ground-based Vector Magnetic Field (L2) 0.5 s Data

Richardson, TX, Ground-based Vector Magnetic Field Level 2 Data, 0.5 s Time Resolution, Station Code: (RICH), Station Location: (GEO Latitude 33.0, Longitude 263.2), McMAC Network

Goose Bay (GBAY) Ground-based Vector Magnetic Field (L2) 0.5 s Data

Goose Bay, NL, Ground-based Vector Magnetic Field Level 2 Data, 0.5 s Time Resolution, Station Code: (GBAY), Station Location: (GEO Latitude 53.3, Longitude 299.5), THEMIS GBO/UCLA Network

MMS 2 Flux Gate Magnetometer (FGM) DC Magnetic Field, Level 2 (L2), Survey Mode, 8 or 16 Sample/s, v4/5 Data

The Fluxgate Magnetometers (FGM) on Magnetospheric Multiscale consist of a traditional Analog Fluxgate Magnetometer (AFG) and a Digital Fluxgate magnetometer (DFG). The dual magnetometers are operated as a single instrument providing a single intercalibrated data product. Range changes occur at different times on the two instruments so the gains checked each periapsis can be carried out unambiguously to apoapsis. Cross correlation of calibration parameters can separate causes of the any apparent calibration changes. Use of Electron Drift Instrument (EDI) to determine the field along the rotation axis allows accurate monitoring of the zero levels along the rotation axis. Prior to launch the magnetometers were calibrated at the Technical University, Braunschweig, except for the AFG magnetometers on MMS3 and MMS4, which were calibrated at UCLA. Both sets of sensors are operated for the entire MMS orbit, with slow survey (8 samples per second) outside of the Region of Interest (ROI), and fast survey (16 samples per second) inside the ROI. Within the ROI, burst mode data (128 samples per second) are also acquired. A detailed description of the MMS fluxgate magnetometers, including science objectives, instrument description, calibration, magnetic cleanliness program, and data flow can be found at http://link.springer.com/article/10.1007%2Fs11214-014-0057-3 (DOI 10.1007/s11214-014-0057-3). Additional information can also be found at http://www-spc.igpp.ucla.edu/ssc/mms (UCLA), and http://www.iwf.oeaw.ac.at/de/forschung/erdnaher-weltraum/mms/dfg (IWF, Graz). For the purpose of creating a unified FGM Level 2 data product, burst mode data is taken from DFG and survey mode data is taken from AFG. Because AFG and DFG are cross-calibrated on an orbit-averaged basis, small differences in offset may be observed between Level 2 burst and survey mode data. Consequently, any differences are within the error of the measurement. Based on preliminary analysis of the data, the absolute error within the Region of Interest (ROI) is estimated to be no more than 0.1 nT in the spin-plane, 0.15 nT along the spin-axis and 0.2 nT in total magnitude.

Glyndon (GLYN) Ground-based Vector Magnetic Field (L2) 0.5 s Data

Glyndon, MN, Ground-based Vector Magnetic Field Level 2 Data, 0.5 s Time Resolution, Station Code: (GLYN), Station Location: (GEO Latitude 46.9, Longitude 263.5), McMAC Network

Radisson (RADI) Ground-based Vector Magnetic Field (L2) 0.5 s Data

Radisson, QC, Ground-based Vector Magnetic Field Level 2 Data, 0.5 s Time Resolution, Station Code: (RADI), Station Location: (GEO Latitude 53.8, Longitude 282.4), AUTUMNX Network

Shawano (SWNO) Ground-based Vector Magnetic Field (L2) 0.5 s Data

Shawano, WI, Ground-based Vector Magnetic Field Level 2 Data, 0.5 s Time Resolution, Station Code: (SWNO), Station Location: (GEO Latitude 44.8, Longitude 271.4), THEMIS EPO/UCLA Network

Meanook (MEA) Ground-based Vector Magnetic Field (L2) 1.0 s Data

Meanook, AB, Ground-based Vector Magnetic Field Level 2 Data, 1.0 s Time Resolution, Station Code: (MEA), Station Location: (GEO Latitude 54.6, Longitude 246.7), NRCan Network

Prince George (PGEO) Ground-based Vector Magnetic Field (L2) 0.5 s Data

Prince George, BC, Ground-based Vector Magnetic Field Level 2 Data, 0.5 s Time Resolution, Station Code: (PGEO), Station Location: (GEO Latitude 53.8, Longitude 237.2), THEMIS EPO/UCLA Network

Whitehorse (WHIT) Ground-based Vector Magnetic Field (L2) 0.5 s Data

Whitehorse, YT, Ground-based Vector Magnetic Field Level 2 Data, 0.5 s Time Resolution, Station Code: (WHIT), Station Location: (GEO Latitude 61.0, Longitude 224.8), THEMIS GBO/UCLA Network

Hot Springs (HOTS) Ground-based Vector Magnetic Field (L2) 0.5 s Data

Hot Springs, MT, Ground-based Vector Magnetic Field Level 2 Data, 0.5 s Time Resolution, Station Code: (HOTS), Station Location: (GEO Latitude 47.6, Longitude 245.3), THEMIS EPO/UCLA Network

restrictednotspecifiedMar 2025View details →

An environment with strong gravitational and magnetic field alterations synergizes to promote variations in Arabidopsis thaliana callus global transcriptional state

Using diamagnetic levitation we have exposed A. thaliana in vitro callus cultures to five environments with different levels of effective gravity (from levitation i.e. simulated mg* to 2g*) and magnetic fields (10.1 to 16.5 Tesla) and we have compared the results with those of similar experiments done in a Random Position Machine (simulated micro g) and a Large Diameter Centrifuge (2g) free of high magnetic fields. Microarray analysis indicates that there are changes in overall gene expression of the cultured cells exposed to these unusual environments but also that gravitational and magnetic field produce synergic variations in the steady state of the transcriptional profile of A. thaliana. Significant changes in the expression of structural abiotic stress and secondary metabolism genes were observed into the magnet field. These results confirm that the strong magnetic field both at micro g* or 2g* has a significant effect on the expression of these genes but subtle gravitational effects are still observable. These subtle responses to microgravity environments are opposite to the ones observed in a hypergravity one. seven-condition experiment MM2D Arabidopsis culture callus control vs. Treatment (altered gravity simulation GBF). Three GBF were used (LDC (2g) + control RPM (mg) + control and Magnet (mg* 0.1g* 1g* 1.9g* 2g*) + control). Biological replicates: 3 replicates in all conditions and controls except 1.9g* (2 replicates)

Victoria (VIC) Ground-based Vector Magnetic Field (L2) 1.0 s Data

Victoria, BC, Ground-based Vector Magnetic Field Level 2 Data, 1.0 s Time Resolution, Station Code: (VIC), Station Location: (GEO Latitude 48.5, Longitude 236.6), NRCan Network

Puvirnituq (PUVR) Ground-based Vector Magnetic Field (L2) 0.5 s Data

Puvirnituq, QC, Ground-based Vector Magnetic Field Level 2 Data, 0.5 s Time Resolution, Station Code: (PUVR), Station Location: (GEO Latitude 60.1, Longitude 282.7), AUTUMNX Network

Synoptic Charts of the Line-of-Sight Component of the Photospheric Magnetic Field

Synoptic charts are maps of the entire Sun produced in Carrington coordinates. Synoptic maps are constructed by merging together solar observations taken over many days. Magnetic-field synoptic charts are produced using central meridian data from HMI full-disk magnetograms.Synoptic maps are constructed from HMI 720s line-of-sight Magnetograms collected over a 27-day solar rotation. Near-central-meridian data from 20 magnetograms contribute to each point in the final map.HMI 720s line-of-sight magnetograms are first converted to 'radial field magnetograms' by dividing by the cosine of the angle from disk center, i.e. for this purpose we assume that HMI measures the line-of-sight component of a purely radial magnetic field. Individual 'radial' magnetograms are then remapped and interpolated onto a very high-resolution Carrington coordinate grid. For each Carrington longitude the values from the 20 magnetograms obtained closest in time to the central meridian passage (CMP) of that longitude are averaged. By using a constant number of contributing magnetograms, the variation of the noise over the entire map is minimized. Generally all data are taken within about 2 degrees of CMP. The effective temporal width of the HMI synoptic map contribution is about three hours, i.e. 20 720-s magnetograms are obtained within about 90 minutes of central meridian passage. The final HMI synoptic maps have a size of 3600 x 1440, which means the resolution is lower than the disk-center resolution of a single HMI magnetogram. A two-dimensional Gaussian function is applied to high-resolution remapped data to reduce the spatial resolution before generating the 3600*1440 synoptic maps. The width of the Gaussian is 3 pixels. The upper limit of the noise is 2.3 Mx cm2.

MAVEN Magnetometer (MAG) Magnetic Field and Orbital Position, Sun-State and Payload Coordinates, Level 2 (L2), 1 s Data

The MAVEN Magnetic Field Investigation is Part of a comprehensive Particles and Fields Subsystem that will measure the Magnetic and Electric Fields and Plasma Environment of Mars and its Interaction with the Solar Wind. This Data Product includes Magnetic Field Observations in Sun-State and Payload Coordinates. Sun-State, SS, Coordinate System wherein the Primary Reference Vector, the X-axis, points from the Object, in this case Mars, to the Sun and the Secondary Reference Vector, the Y-axis, is in the Mars Orbit Plane, which is approximately opposite to Orbital Motion Direction, such that the Z-axis is Northward. The Observations Spacecraft Payload, PL, Coordinates are suitable for use in association with Measurements obtained by other Instruments on the Spacecraft. The Spacecraft Payload Coordinate System and the MAG Sensor Coordinate Systems are illustrated in Figure 21 of Connerney et al., 2015. The Text appearing here is also adapted from Connerney et al., 2015.