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1,891 results for “Field data”
Ny Alesund (NAL) Ground-based Vector Magnetic Field (L2) 1.0 min Data
Ny Alesund, Norway, Ground-based Vector Magnetic Field Level 2 Data, 1.0 min Time Resolution, Station Code: (NAL), Station Location: (GEO Latitude 79.0, Longitude 11.9), TGO Network
Sitka (SIT) Ground-based Vector Magnetic Field (L2) 1.0 s Data
Sitka, AK, Ground-based Vector Magnetic Field Level 2 Data, 1.0 s Time Resolution, Station Code: (SIT), Station Location: (GEO Latitude 57.1, Longitude 224.7), USGS Network
Van Allen Probe A Electric Field and Waves Suite (EFW) Burst Mode 1 (512 Samples/sec) Electric and Magnetic Fields, Waveform, in Spacecraft Spin (UVW) Coordinates, Level 1 (L1), 1.95 ms Data
The EFW Burst Modes provide targeted Measurements over Brief Time Intervals of 3-D Electric Fields, 3-D Wave Magnetic Fields, and Spacecraft Potential. There are two EFW Burst Modes: BURST1 (B1), Medium-Rate 512 samples/s nominal and BURST2 (B2), Higher-Rate, 16384 samples/s nominal. The Burst 1 Mode Data includes three components of the Electric Field (E12_B1, E34_B1, E56_B1), six Components of the Spacecraft-Sensor Potential (V1_B1 through V6_B1), and three Components of the AC Magnetic Field (SCM_U_B1, SCM_V_B1, SCM_W_B1 from the EMFISIS Search Coil Magnetometer). The Burst 2 Mode Data returns a similar Complement of Electric Field (E_12ac_B2, E34ac_B2, E56ac_B2), Search Coil (SCM_B2, SCM_2B2, and SCM_B2 again from the EMFISIS Search Coil Magnetometer) and Single-ended Potential Measurements (V1ac_B1 through V6ac_B2) with the exception that in the Default Mode the Single-ended Potential and Electric Field Signals are AC coupled with a higher Gain. All Quantities are in "uvw" Coordinates where "u" and "v" are the Sensor Coordinates rotating with the Spacecraft and "w" points along the Spacecraft Spin Axis. Burst Waveform CDF Files are available. The three Data Types available are the Electric Field "E" the Searchcoil Magnetic Field "MSC" and Antenna Potential "V". The Suffix on each of these is either "B1" or "B2". B1 or Burst 1 is the Human-in-the-Loop Burst Type, meaning that both Collection and Playback (for arbitrary Lengths of Time) are requested on the Ground. B2 or Burst 2 is automatically telemetered as short Bursts based on an onboard Triggering Algorithm, typically set to trigger on large Amplitude Signals near 1 kHz. Sample Rates for B1 and B2 can and are changed depending on varying Science Goals.
MMS 1 Digital Signal Processor (DSP) Double Probe (ADP, SDP), Electric Field Power Spectral Density, Level 2 (L2), Fast Mode, 2 s Data
The MMS electric field power spectral density (EPSD) is computed onboard by the Digital Signal Processor (DSP). The fast Fourier transform (FFT) calculation is performed on a digitized version of analog signals from the Axial Double Probe (ADP) and Spin-Plane Double Probe (SDP). This data product is computed in space from individual components that are not synchronized to the 1 second pulse. Therefore, the timing between channels can be inaccurate by a fraction of a second. The samples times are interval start times taken from the x component. The spectra are calculated via a 1024-point FFT algorithm on piecewise continuous sets of waveform data. Nine signals can be processed simultaneously. Six of the twelve DC-coupled E, DC-coupled V, or SCM signals (16384 samples/s) are selected for spectral processing at 100% duty cycle. In addition, the three AC-coupled signals (262,144 kS/s) each can be processed at 6.25% duty cycle. Each of the nine signals has 16, 1024-point FFT operations every second; the field-programmable gate array (FPGA) performs 144 FFTs per second. The FFT is performed by an arithmetic logic unit (ALU), which is controlled by a state machine. Both are hard-coded into the FPGA. The operation starts by applying a 1024-point Hanning window onto a waveform. Next, an FFT is implemented. The FFT is broken into a series of "butterfly" operations performed by the ALU. The result has real and imaginary data. Power spectra are calculated by taking the sum of squares of real and imaginary values (the ALU includes a multiplier), which produces a power spectrum with 512 frequency bins. The frequency bins are then combined to give pseudo-logarithmic frequency spacing (del f)/f. The spectra are reduced to 56 frequency bins with (del f)/f between 6% and 12% when possible. Narrow-band emissions can be fit to an accuracy of (del f)/f ~3%, allowing for an accurate determination of plasma density. The spectra can be averaged in time. The fastest reporting rate of any signal is 16 spectra per second. Reporting rates can be as slow a one spectra every 16 s (averaging 256 spectra). The averaging process has 48-bit accuracy to maximize the dynamic range. The amplitudes undergo a pseudo-logarithmic compression to an 8-bit number representing over 120 dB of dynamic range at ~5% precision.
Field Data: Acoustic survey design for species richness
<p>BirdNET results when applied to acoustic survey data collected with Swift recorders in Central New York, USA and the northern Sierra Nevada, USA. Detections with a confidence score <0.5 have been excluded.</p>
Data for foucsing electromagnetic field
<p>The raw data for focusing the electromagnetic field with a nanowire-bowtie antenna. Angle between nanowire and y axis should be considered for plot.</p>
Data set of phase-field studies of permeability evolution in open fractures during precipitation and dissolution
<p>The numerical data in this repository consists of the simulation data of crystallization and dissolution processes in open fractures on microscale. The simulations were performed using the software package "Pace3D".</p> <p>The simulation data shows intermediate crystal growth and dissolution stages with fluid flow computations. The data was converted from Pace3D output data format to VTK data format. The VTK files can be visualized using open source software packages like Paraview. The data files in the zip-folders are also compressed (file format *.xz). For visualization the data has to be decompressed with e.g. xz or 7zip.</p>
DMSP F17 Special Sensor Magnetometer, SESS/SSM-Boom, Magnetic Field Measurements taken at 850 km, 1 s Data
Defense Meteorology Satellite Program, DMSP, F17 Vector Magnetometer Measurements, 850 km Altitude
MMS 1 Electric Double Probe (EDP) Three-Dimensional Electric Field, Level 2 (L2), Slow Mode, 0.125 s Data
Electric Double Probe, Quick-Look Three-Dimensional Electric Field, Level 2, Slow Survey Data
DMSP F18 Special Sensor Magnetometer, SESS/SSM-Boom, Magnetic Field Measurements taken at 850 km, 1 s Data
Defense Meteorology Satellite Program, DMSP, F18 Vector Magnetometer Measurements, 850 km Altitude
MMS 4 Electric Double Probe (EDP) Three-Dimensional Electric Field, Level 2 (L2), Fast Mode, 31.25 ms Data
Electric Double Probe, Quick-Look Three-Dimensional Electric Field, Level 2, Fast Survey Data
IMP 8 MAG 320 msec GSE magnetic field data
Data consist of 320 ms magnetic field magnitude and Cartesian components.
MMS 1 Electric Double Probe (EDP) Three-Dimensional Electric Field, Level 2 (L2), Burst Mode, 0.1220703125 ms Data
Electric Double Probe, Three-Dimensional Electric Field, Level 2, Burst Mode Data
MMS 4 Electric Double Probe (EDP) Three-Dimensional Electric Field, Level 2 (L2), Burst Mode, 0.1220703125 ms Data
Electric Double Probe, Three-Dimensional Electric Field, Level 2, Burst Mode Data
MMS 3 Electric Double Probe (EDP) Three-Dimensional Electric Field, Level 2 (L2), Fast Mode, 31.25 ms Data
Electric Double Probe, Quick-Look Three-Dimensional Electric Field, Level 2, Fast Survey Data
DMSP F16 Special Sensor Magnetometer, SESS/SSM-Boom, Magnetic Field Measurements taken at 850 km, 1 s Data
Defense Meteorology Satellite Program, DMSP, F16 Vector Magnetometer Measurements, 850 km Altitude
MMS 1 Electric Double Probe (EDP) Three-Dimensional Electric Field, Level 2 (L2), Fast Mode, 31.25 ms Data
Electric Double Probe, Quick-Look Three-Dimensional Electric Field, Level 2, Fast Survey Data
MMS 3 Electric Double Probe (EDP) Three-Dimensional Electric Field, Level 2 (L2), Burst Mode, 0.1220703125 ms Data
Electric Double Probe, Three-Dimensional Electric Field, Level 2, Burst Mode Data
MMS 4 Electric Double Probe (EDP) Three-Dimensional Electric Field, Level 2 (L2), Slow Mode, 0.125 s Data
Electric Double Probe, Quick-Look Three-Dimensional Electric Field, Level 2, Slow Survey Data
MMS 3 Electric Double Probe (EDP) Three-Dimensional Electric Field, Level 2 (L2), Slow Mode, 0.125 s Data
Electric Double Probe, Quick-Look Three-Dimensional Electric Field, Level 2, Slow Survey Data
ScienceDex guides
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These curated guides explain access requirements, typical timelines, costs, and reuse considerations for widely used research datasets.
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)
ABODe is a University of Edinburgh DataShare dataset for behavior classification in group-housed mice using home-cage video, identities, bounding boxes, ground-plate positions, and annotator labels.
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.