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115 results for “Solar eclipse”
KD9DXF CHU 14.670 MHz from April 8, 2024 Solar Eclipse
<p>Radio: Icom IC-7300</p> <p>GPS-disciplined: No</p> <p>AGC: Off</p> <p>Antenna: Hustler 6BTV. , omni, ground mounted.</p> <p>Lat/Lon:</p> <table> <tbody> <tr> <td>38.556036</td> <td> <p>-89.538272</p> </td> </tr> </tbody> </table> <p>Notes:</p> <p>Part way through recording the first file, turned down RF gain, as FLDIGI was showing red. Didn't change any after that.</p> <p>Comments:</p> <p>Good job. Looking foward to seeing results.</p>
ND1T CHU 14.670 MHz from April 8, 2024 Solar Eclipse
<p><em>Note:</em> ND1T collected on multiple frequencies. </p> <p>Radio: <span>FlexRadio Flex3000</span></p> <p><span>GPS-disciplined: No</span></p> <p><span>AGC: Off</span></p> <p><span>Antenna: <span>HexBeam (2-el) pointed @270 deg.</span></span></p> <p><span><span>Lat/lon:</span></span></p> <table> <tbody> <tr> <td>44.27216494</td> <td>-73.09583908</td> </tr> </tbody> </table> <p> </p>
Solar Eclipse 2017 recordings of the medium-wave AM broadcast band from Victoria, BC, Canada
<p>recorded by Nick Hall-Patch, VE7DXR</p> <p>location recorded: 48.42735°N 123.32426°W</p> <p>These data files are of the entire medium wave broadcast band (535-1705kHz) from 16:01:35UTC to 18:09:35UTC, recorded in Victoria, BC, Canada. Data files are .wav format, but the archived files are .zip, with several .wav files packaged together in each .zip file</p> <p>Antenna: broadband delta loop antenna, 22-foot apex with a 40-foot base, oriented 110-290 degrees; Wellbrook (https://www.wellbrook.uk.com/loopantennas/) ALA100 preamplifier</p> <p>Receiver: RFSpace (http://www.rfspace.com) NetSDR, 20dB attenuation, center frequency set at 1100kHz, recording 1300kHz wide passband, using RFSpace SpectraVue v.3.39 software (http://www.rfspace.com/RFSPACE/SpectraVue.html).</p> <p> </p>
Timelapse of cloud cover during the 21 August 2017 solar eclipse
<p>Timelapse photos of cloud cover during the 21 August 2017 solar eclipse. Location: a small valley in the foothills of the Blue Ridge Mountains, near Charlottesville, VA. Photos were taken using a GoPro camera looking facing approximately SW every 5 seconds between 12:00 - 16:00 EDT (local time).</p>
Data set for "Multi-frequency SuperDARN HF radar observations of the ionospheric response to the October 2023 annular solar eclipse"
<p>This data set contains rawACF and sounding mode data files from the Christmas Valley East (CVE) SuperDARN radar and manually scaled ionogram parameters from the Boulder (BC840) Digisonde used in the paper "Multi-frequency SuperDARN HF radar observations of the ionospheric response to the October 2023 annular solar eclipse" submitted to Geophysical Research Letters.</p>
HamSCI 2017 Solar Eclipse QSO Party (SEQP) Data
<p>The 2017 Solar Eclipse QSO Party (SEQP) was a ham radio contest-like experiment designed to study the effects of the 21 August 2017 Total Solar Eclipse on the ionosphere and radio propagation. The SEQP was coordinated by the Ham Radio Science Citizen Investigation (hamsci.org). This archive contains the locations, logs, and station descriptions submitted by operators to hamsci.org following the SEQP, as well as an aggregated, geolocated archive in CSV format of all Reverse Beacon Network (RBN), WSPRNet, PSKReporter, DXCluster, and SEQP log QSOs. The final rules of the SEQP have also been archived here. More information about the SEQP can be found at <a href="http://hamsci.org/seqp">http://hamsci.org/seqp</a>, and a published analysis of RBN observations over the United States by Frissell et al. (2018) may be found at <a href="https://doi.org/10.1029/2018GL077324">https://doi.org/10.1029/2018GL077324</a>.</p> <p>Please see README.pdf for detailed information regarding this dataset.</p> <p><strong>Data Rules of the Road</strong></p> <p>Please acknowledge the HamSCI project and Nathaniel Frissell, W2NAF, when using data from this archive in presentations and publications. Also, please be sure to acknowledge the upstream data providers (Reverse Beacon Network, PSKReporter, WSPRNet, and DX Cluster) as appropriate.</p> <p><strong>Questions</strong></p> <p>Please contact Nathaniel Frissell, W2NAF, at <a href="mailto:w2naf@arrl.net">w2naf@arrl.net</a> or hamsci@hamsci.org.</p> <p><strong>Acknowledgments</strong></p> <p>Support for the Solar Eclipse QSO Party is in part thanks to NSF Grant AGS‐1552188/479505‐19C75 and the New Jersey Institute of Technology Center for Solar Terrestrial Research. Special thanks to the operators and participants of numerous ham radio observation networks contributing data to this project. RBN data are provided by <a href="http://reversebeacon.net/">http://reversebeacon.net</a>, with thanks to Felipe Ceglia (PY1N/CT7ANO), Pete Smith (N4ZR), and Dick Williams (W3OA). Thanks to Philip Gladstone (N1DQ) for PSKReporter (<a href="http://pskreporter.info/">http://pskreporter.info</a>) observations. WSPRNet observations were downloaded from <a href="http://wsprnet.org/">http://wsprnet.org</a>. Thanks to Bill Engelke (AB4EJ) for providing DXCluster data. We thank the global amateur radio community, Ward Silver (N0AX), and the ARRL for making the SEQP possible. Select geolocation data is provided by <a href="http://qrz.com/">http://qrz.com</a>. We acknowledge the use of the Free Open Source Software projects used in this analysis: Ubuntu Linux, python, matplotlib, NumPy, SciPy, pandas, and others.</p>
2023 Annular and 2024 Total North American Solar Eclipse Obscuration Calculations
<p>These are predictions of eclipse obscuration and eclipse track made using the AstroPy library for the 14 October 2023 Annular and 8 April 2024 Total Solar Eclipses over North America.</p><p>Calculations are made for altitudes from the ground up to 450 km altitude in 50 km steps, with a 0.2 x 0.2 degrees latitude/longitude resolution, and a 5 minute cadence. Plots are included for all time steps, as well as a summary plot each entire eclipse.</p><p>The code used to generate these calculations is available here: <a href="https://github.com/HamSCI/eclipse_calculator/">https://github.com/HamSCI/eclipse_calculator/</a></p><p>These calculations were made to support the studies of solar eclipse impacts on the ionosphere conducted by the Ham Radio Science Citizen Investigation (HamSCI).</p><p>Changelog:</p><ul><li>v1.1: This version fixes a bug in the obscuration calculation during the annular eclipse.</li></ul>
Nationwide eclipse ballooning project: Engineering data from the 2023 annular and 2024 total solar eclipses
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Nationwide Eclipse Ballooning Project: Atmospheric data from the 2023 annular and 2024 total solar eclipses
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Data from: Aeroecology of a solar eclipse
Light cues elicit strong responses from nearly all forms of life, perhaps most notably as circadian rhythms entrained by periods of daylight and darkness. Atypical periods of darkness, like solar eclipses, provide rare opportunities to study biological responses to light cues. By using a continental scale radar network, we investigated responses of flying animals to the total solar eclipse of 21 August 2017. We quantified the number of biological targets in the atmosphere at 143 weather radar stations across the continental United States to investigate whether the decrease in light and temperature at an atypical time would initiate a response like that observed at sunset, when activity in the atmosphere usually increases. Overall, biological activity decreased in the period leading to totality, followed by a short low-altitude spike of biological activity during totality in some radars. This pattern suggests that cues associated with the eclipse were insufficient to initiate nocturnal activity comparable to that occurring at sunset but sufficient to suppress diurnal activity.
Data from: Pollination on the dark side: acoustic monitoring reveals impacts of a total solar eclipse on flight behavior and activity schedule of foraging bees
The total solar eclipse of 21 August 2017 traversed ~5000 km from coast to coast of North America. In its 90-min span, sunlight dropped by three orders of magnitude and temperature by 10–15°C. To investigate impacts of these changes on bee (Hymenoptera: Apoidea) pollinators, we monitored their flights acoustically in natural habitats of Pacific Coast, Rocky Mountain, and Midwest regions. Temperature changes during the eclipse had little impact on bee activity. Most of the explained variation (R2) in buzzing rate was attributable to changes in light intensity. Bees ceased flying during complete darkness at totality, but flight activity was unaffected by dim light in partial phases before and after totality. Flights of bees during partial phases of the eclipse lasted longer than flights made under full sun, showing that behavioral plasticity matched bee flight properties to changes in light intensity during the eclipse. Efforts of citizen scientists, including hundreds of school children, contributed to the scope and educational impact of this study.
W6MRR WSPR 2017 SOLAR ECLIPSE WSPR DATA - 30, 40 , 80 ,160 and 630 m on 8/20/2017 - 8/22/2017
<p>WSPR .wav file recordings taken before during and after the eclipse.</p> <p>Extended double zepp antenna, ladder line to SGC-237 automatic antenna tuner, RG-8 to Red Pitaya HAMlab SDR. PowerSDR OpenHPSDR mRX PS v3.4.2 , virtual audio cable and virtual serial port to WSJT-x v1.8.0-rc1. Receive and transmit on 30, 40, 80 m and receive only on 160 and 630 m. Operated WSPR transmit at 5% duty and 5 W.</p>
Ionospheric Electron Densities, Neutral Temperature, Winds and Post-processed Output from TIEGCM Simulations in Support of Publication "Physical Processes Driving the Response of the F2-region Ionosphere to the 21 August 2017 Solar Eclipse at Millstone Hill"
This dataset is associated with the publication "Physical Processes Driving the Response of the F2-region Ionosphere to the 21 August 2017 Solar Eclipse at Millstone Hill". In particular, the NCAR- Community model: high-resolution thermosphere-ionosphere-electrodynamics general circulation model (TIEGCM) has been used to investigate the response of ionospheric F2-region electron density (Ne) at Millstone Hill (42.610N, 71.480W, maximum obscuration: 63%) to the Great American Solar Eclipse on 21 August 2017. Two sets of model runs were done, one with the eclipse and the other without. Model outputs of winds, temperatures and electron densities, as well as diagnostic variables of key chemical and physical processes that determined the ionosphere responses to the eclipse, were analyzed and used in producing a paper: Physical Processes Driving the Response of the F2-region Ionosphere to the 21 August 2017 Solar Eclipse at Millstone Hill.
Replication package for "Solar Eclipses and the Origins of Critical Thinking and Complexity".
<p>This replication package accompanies Litina and Roca-Fernández. “Solar Eclipses and the Origins of Critical Thinking and Complexity”. The Economic Journal. (forthcoming)</p>
GNSS derived Total Electron Content variation of the Ionosphere along the annularity path during the Annular Solar Eclipse of 21 June 2020
<p>GNSS data set used in the <strong><span>GNSS derived Total Electron Content variation of the Ionosphere along the annularity path during the Annular Solar Eclipse of 21 June 2020 </span></strong><span>research article</span></p>
VE3HOA CHU 3.330 MHz from April 8, 2024 Solar Eclipse
Open the record for dataset details and reuse information.
KM4VCO WSPR recordings from the Solar Eclipse QSO Party
<p>From: Caroline Kuebert, KM4VCO</p> <p>Recorded At: 36.159200 Latitude, -80.024500 Longitude</p> <p>Station: Elecraft K3 receiver, 40m 1/4 wave vertical antenna, 20m cobweb</p>
Solar Eclipse 2017 recordings of the the medium-wave AM broadcast band from near Medicine Hat, AB, Canada
<p>recorded by Nigel Pimblett, VE6TNF</p> <p>location recorded: 49°51'20" N 110°42'36" W</p> <p>These data files are recordings of the entire medium wave broadcast band (535-1705kHz) from 16:55:10UTC to 18:15:03UTC, recorded near Medicine Hat, AB, Canada. Data files are .wav format, but the archived files are .zip, with two .wav files packaged together in each .zip file </p> <p>Antenna: Beverage, 2.5m above the ground, 300m length, oriented towards 145 degrees; </p> <p>Receiver: Microtelecom Perseus SDR (http://microtelecom.it/perseus/) with no front end attenuation, center frequency set at 1000kHz, recording 1600kHz wide passband, using Perseus software (http://microtelecom.it/perseus/software.html)</p> <p> </p>
Solar Eclipse 2017 recordings of medium-wave AM broadcast band from western Michigan, U.S.A.
<p>recorded by Tim Tromp, KE8JFM</p> <p>location recorded: 86°09'29" W, 43°11'07" N</p> <p>These data files are recordings of the entire medium wave broadcast band (535-1705kHz) from 17:57:28UTC to 19:10:23UTC from western Michigan, U.S.A. Data files are .wav format, but the archived files are .zip, with two or three .wav files packaged together in each .zip file.</p> <p>Antenna: DKaz antenna (described at http://www.durenberger.com/documents/DKAZ070314.pdf), 117' long x 22' tall, aimed @ 180 degrees (no amplification used)</p> <p>Receiver: Microtelecom Perseus SDR (http://microtelecom.it/perseus/) with no front end attenuation, center frequency set at 910kHz, recording 1600kHz wide passband, using Perseus software 17:57:28UTC to 18:36:23UTC. A second session was recorded with center frequency set at 1300kHz, and an 800kHz wide passband, using Perseus software, 18:38:51UTC to 19:10:23UTC.</p> <p> </p>
Solar Eclipse 2017 recordings of the medium-wave AM broadcast band from Grants Pass, Oregon, U.S.A.
<p>recorded by Dave Aichelman, N7NZH</p> <p>location recorded: 42° 24.800'N 123° 23.314'W</p> <p>These data files are recordings that include the entire medium wave broadcast band (535-1705kHz) from 17:09:00UTC to 17:46:00UTC, recorded in Grants Pass, Oregon, U.S.A.. Data files are .wav format, but the archived files are .zip, with several .wav files packaged together in each .zip file.</p> <p>Antenna: Wellbrook 1530LN Loop (https://www.wellbrook.uk.com/loopantennas/), oriented east-west;</p> <p>Receiver: RFSpace (http://www.rfspace.com) Cloud-IQ SDR, 10dB attenuation, center frequency set at 1120kHz, recording 1500kHz wide passband, using RFSpace SpectraVue v.3.39 software (http://www.rfspace.com/RFSPACE/SpectraVue.html).</p> <p> </p>
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Allen Brain Atlas
Allen Brain Atlas is an Allen Institute collection of brain map atlases, datasets, APIs, and analysis tools covering mouse, human, and non-human primate brain resources.
Annotated Behaviour and Observability Dataset (ABODe)
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DANDI Archive for NWB datasets
DANDI is a BRAIN Initiative archive for publishing and sharing neurophysiology data, including electrophysiology, optophysiology, and behavioral data packaged as NWB and related standards.
International Brain Laboratory public data
The International Brain Laboratory public data releases expose standardized mouse decision-making experiments, including Neuropixels recordings, widefield calcium imaging, behavior, and session metadata accessed through the ONE API.
OpenNeuro
OpenNeuro is a free, open platform for sharing neuroimaging datasets, with public search, dataset pages, and download paths for web, S3, DataLad, and the OpenNeuro CLI.