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814 results for “radio”
GPS Radio Occultation Boundary Layer Depth Annual L3 V2 (GPSROZPBLA) at GES DISC
This dataset provides an annual average climatology of planetary boundary layer (PBL) height derived from COSMIC/FORMOSAT-3, TerraSAR-X, KOMPSAT-5, and PAZ Global Positioning System (GPS) radio occultation (RO) measurements. The COSMIC/FORMOSAT-3 mission consists of a six-satellite constellation launched in 2006. Each satellite carries an Integrated GPS Occultation Receiver (IGOR) GPS receiver and is equipped with fore and aft looking antenna to track both setting and rising occultations. The constellation provides globally distributed measurements across different local times. The instrument tracks the L-band microwave signal broadcast by a GPS satellite in a limb-viewing geometry. The IGOR receivers are capable of tracking the GPS signals in open loop through the middle to lower troposphere, which is essential for obtaining data with high quality for PBL height estimation, especially at low latitudes. The refractivity profiles form the basis for this PBL height product. For each occultation, the PBL height is calculated as the height where the vertical gradient of the refractivity (dN/dz) is minimum. This algorithm is designed to locate the height where a large vertical change in refractivity occurs, corresponding to the transition from the free troposphere to the PBL. More details can be found in Ao et al. (2012). This is the latest version of this collection which supercedes previous versions.
GPS Radio Occultation Boundary Layer Depth Seasonal L3 V1 (GPSROZPBLS) at GES DISC
This dataset has been superseded by version 2. It provides seasonal averages of a global planetary boundary layer (PBL) height climatology derived from the COSMIC/FORMOSAT-3 and TerraSAR-X Global Positioning System (GPS) radio occultation (RO) measurements from June 2006 to December 2015. The COSMIC/FORMOSAT-3 mission consists of a six-satellite constellation launched in 2006. Each satellite carries the IGOR GPS receiver and is equipped with fore and aft looking antenna to track both setting and rising occultations. The constellation provides globally distributed measurements across different local times. The TerraSAR-X (TSX) is a X-band SAR imaging satellite with GPS RO being a secondary measurement. It also carries an IGOR receiver and has been collecting GPS RO measurements since 2011. The instrument tracks the L-band microwave signal broadcast by a GPS satellite in a limb-viewing geometry. The IGOR receivers on COSMIC and TSX are capable of tracking the GPS signals in open loop through the middle to lower troposphere, which is essential for obtaining data with high quality for PBL height estimation, especially at low latitudes. The refractivity profiles from COSMIC and TSX form the basis for this PBL height product.For each occultation, the PBL height is calculated as the height where the vertical gradient of the refractivity (dN/dz) is minimum. This algorithm is designed to locate the height where a large vertical change in refractivity occurs, corresponding to the transition from the free troposphere to the PBL. More details can be found in Ao et al. (2012). Each PBL height is associated with a time (starting time of the occultation) and location (latitude and longitude of the tangent point at the minimum altitude). The PBL height data are then binned into 2 degree x 2 degree latitude/longitude regions and averaged to produce the mean and standard deviation values in the climatology products. The refractivity profile has a vertical resolution of about 200 m and represents an along path horizontal averaging of ~100 km. Thus, occultations with tangent points near the coast may represent averaging over both land and ocean and should be interpreted with care. The refractivity gradient method used here is not the only method that can be used to estimate the PBL height. Other algorithms have been proposed, including looking at "breakpoint" instead of minimum gradient, wavelet covariance transform, and using variables like bending angles or specific humidity instead of refractivity. However, the basic principle is the same. The difference between the different algorithms is small where the PBL is well-defined, with a strong capping inversion.
GPS Radio Occultation Boundary Layer Depth Annual L3 V1 (GPSROZPBLA) at GES DISC
This dataset has been superseded by version 2. It provides an annual average of a global planetary boundary layer (PBL) height climatology derived from the COSMIC/FORMOSAT-3 and TerraSAR-X Global Positioning System (GPS) radio occultation (RO) measurements from June 2006 to December 2015. The COSMIC/FORMOSAT-3 mission consists of a six-satellite constellation launched in 2006. Each satellite carries the IGOR GPS receiver and is equipped with fore and aft looking antenna to track both setting and rising occultations. The constellation provides globally distributed measurements across different local times. The TerraSAR-X (TSX) is a X-band SAR imaging satellite with GPS RO being a secondary measurement. It also carries an IGOR receiver and has been collecting GPS RO measurements since 2011. The instrument tracks the L-band microwave signal broadcast by a GPS satellite in a limb-viewing geometry. The IGOR receivers on COSMIC and TSX are capable of tracking the GPS signals in open loop through the middle to lower troposphere, which is essential for obtaining data with high quality for PBL height estimation, especially at low latitudes. The refractivity profiles from COSMIC and TSX form the basis for this PBL height product.For each occultation, the PBL height is calculated as the height where the vertical gradient of the refractivity (dN/dz) is minimum. This algorithm is designed to locate the height where a large vertical change in refractivity occurs, corresponding to the transition from the free troposphere to the PBL. More details can be found in Ao et al. (2012). Each PBL height is associated with a time (starting time of the occultation) and location (latitude and longitude of the tangent point at the minimum altitude). The PBL height data are then binned into 2 degree x 2 degree latitude/longitude regions and averaged to produce the mean and standard deviation values in the climatology products. The refractivity profile has a vertical resolution of about 200 m and represents an along path horizontal averaging of ~100 km. Thus, occultations with tangent points near the coast may represent averaging over both land and ocean and should be interpreted with care. The refractivity gradient method used here is not the only method that can be used to estimate the PBL height. Other algorithms have been proposed, including looking at "breakpoint" instead of minimum gradient, wavelet covariance transform, and using variables like bending angles or specific humidity instead of refractivity. However, the basic principle is the same. The difference between the different algorithms is small where the PBL is well-defined, with a strong capping inversion.
Sentinel-6A Level 2 GNSS Radio Occultation Near-Real-Time V1 (S6A_RO_2__NRT_NC__) at GES DISC
This dataset provides the L2 Global Navigation Satellite System (GNSS) Radio-Occultation (RO) Near-Real-Time (NRT) retrieval generated by NASA's Jet Propulsion Laboratory (JPL) from Sentinel-6A Michael Freilich. The main retrieval variables in this dataset are refractivity, temperature, and humidity. Each granule is for one RO and represented by the nominal geodetic reference location for the occultation, where the latitude and longitude are associated with the moment when the line-of-sight connecting the receiver and transmitter satellites just touches the reference ellipsoid. Sentinel 6 is a collaborative mission between NASA's JPL and European Organisation for the Exploitation of Meteorological Satellites (EUMETSAT), with participation from European Space Agency (ESA), the USA's National Oceanic and Atmospheric Administration (NOAA), and Centre National d’Études Spatiales (CNES) of France. These organizations will deliver an operational mission as part of a two-satellite European Copernicus/Sentinel program. The Sentinel-6A Michael Freilich Jason-CS (Sentinel-6A) was launched in November 21, 2020. One objective of Sentinel 6 is to collect high-resolution vertical profiles of temperature and humidity, using GNSS RO sounding technique, to assess temperature and humidity changes in the troposphere and stratosphere and to support numerical weather prediction.
GPS Radio Occultation Boundary Layer Depth Seasonal L3 V2 (GPSROZPBLS) at GES DISC
This dataset provides a seasonal average climatology of global planetary boundary layer (PBL) height derived from COSMIC/FORMOSAT-3, TerraSAR-X, KOMPSAT-5, and PAZ Global Positioning System (GPS) radio occultation (RO) measurements. The COSMIC/FORMOSAT-3 mission consists of a six-satellite constellation launched in 2006. Each satellite carries an Integrated GPS Occultation Receiver (IGOR) GPS receiver and is equipped with fore and aft looking antenna to track both setting and rising occultations. The constellation provides globally distributed measurements across different local times. The instrument tracks the L-band microwave signal broadcast by a GPS satellite in a limb-viewing geometry. The IGOR receivers are capable of tracking the GPS signals in open loop through the middle to lower troposphere, which is essential for obtaining data with high quality for PBL height estimation, especially at low latitudes. The refractivity profiles form the basis for this PBL height product. For each occultation, the PBL height is calculated as the height where the vertical gradient of the refractivity (dN/dz) is minimum. This algorithm is designed to locate the height where a large vertical change in refractivity occurs, corresponding to the transition from the free troposphere to the PBL. More details can be found in Ao et al. (2012). This is the latest version of this collection which supersedes previous versions.
A Population of Radio-Resistant Macrophages in the Deep Myenteric Plexus Contributes to Postoperative Ileus Via Toll-Like Receptor 3 Signaling
GEO Series GSE132147. Mus musculus. 6 samples. Type: Expression profiling by high throughput sequencing.
The splicing factor SRSF1 regulates the radio-resistance of cancer cells through modulating the alternative splicing of PTPMT1
GEO Series GSE107224. Homo sapiens. 4 samples. Type: Expression profiling by high throughput sequencing.
The C-terminus of p53 Confers Liver-Specific Gene Regulation and Radio-Resistance in vivo [RNA-Seq]
GEO Series GSE204924. Mus musculus. 36 samples. Type: Expression profiling by high throughput sequencing.
Next generation sequencing of esophageal squamous cell carcinoma (ESCC) cell line KYSE-180 single cell transcriptomes for radio-resistance analysis
GEO Series GSE81812. Homo sapiens. 314 samples. Type: Expression profiling by high throughput sequencing.
Nasopharyngeal carcinoma patient samples: radio-sensitive samples vs. radio-resistant samples
GEO Series GSE32389. Homo sapiens. 20 samples. Type: Expression profiling by array.
Transcriptional characterization of adjuvantly radio(chemo)therapy treated head and neck squamous cell carcinoma (HNSCC).
GEO Series GSE235223. Homo sapiens. 134 samples. Type: Expression profiling by high throughput sequencing.
Data for the paper "New Vary-Chap scale height profile retrieved from COSMIC radio occultation data"
<p>This dataset works specifically for the paper Wu et al., (2020), New Vary-Chap scale height profile retrieved from COSMIC radio occultation data:</p> <p>Fig1_data.txt: Data for Figure 1</p> <p>Fig2_data.txt: Data for Figure 2</p> <p>Fig3_data.zip: Data for Figure 3</p> <p>Fig4_5_10_11_13_14_15_16_data.zip: Data for Figure 4, Figure 5, Figure 10, Figure 11, Figure 13, Figure 14, Figure 15, Figure 16. This dataset includes many columns to provide the materials for above figures.</p> <p>Fig6_data.zip: Data for Figure 6</p> <p>Fig7_data.zip: Data for Figure 7</p> <p>Fig8_data.zip: Data for Figure 8</p> <p>Fig9_data.zip: Data for Figure 9</p> <p>Fig12_data.zip: Data for Figure 12</p>
Characterizing radio frequency magnetic radiation of initial upward leader in triggered lightning with interferometric lightning mapping
<p>The operation bandwidth of magnetic field sensor with high sensitivity was extended to 1.2 MHz during the triggered lightning experiment of Field Experiment Base on Lightning Sciences, China Meteorological Administration (CMA-FEBLS) in Conghua, Guangdong Province during summer of 2019. Measurements with the new magnetic fields reveal the presence of microsecond-scale magnetic pulses during the entire duration of upward positive leaders (UPL), including the quiet stage when few signals can be discerned in previous observations, which indicates that the UPL propagates in a step-wise manner during the initial stage of triggered lightning. Synchronous observations from the broadband VHF interferometer shows that the VHF radiation corresponds to the onset of individual magnetic pulses, indicating that the VHF signals are radiated by the breakdown processes of individual stepping, and these breakdown events launch the meter-scale current pulses as the radiation source of each magnetic pulse.</p>
Data from: Using radio telemetry to study behavioural thermoregulation in insects under field conditions
1. Thermoregulation is a central aspect of animal physiology. Mobile ectotherms have the potential to influence their temperature through their location and orientation. Behavioural thermoregulation has been extensively studied in insects, particularly in the migratory locust (Locusta migratoria). However, most field studies are confined to daytime observations typically using invasive thermocouples with obvious potential to disrupt natural behaviour. 2. We demonstrate that miniature radio-transmitters represent an alternative and less invasive method to study insect thermoregulation. We discuss how this method can be used to study the thermal behaviour of free-ranging animals for extended periods. Specifically, we show that there is a close correlation between temperature recordings from implanted thermocouples in locusts (L. migratoria) and externally mounted radio transmitters on the same animals. 3. Our experiments match earlier observations of locust thermoregulatory behaviour confirming that the locusts with transmitters exhibit "normal" thermoregulatory responses to feeding and to infections (behavioural fever). 4. Finally, we demonstrate the practicality of a radio-transmitter based system by recording natural thermoregulatory behaviour of locusts in a semi-field setting. Our field study showed locusts actively chose warm microclimates during the day and cold microclimates at night. We conclude that the use of radio-telemetry in studies of behavioural thermoregulation in wild insects could provide unique continuous recordings of body temperature over several days. Such data will provide researchers with a more complete understanding of how insects use behavioural thermoregulation in nature.
Data of the paper "A Technique for the Array Partitioning" submitted to Radio Science
<p>Data set of the case A of the paper. The .mat file contains the data, and the .m file uses the data to get the figures of the paper. </p>
The Makerere Radio Speech Corpus: A Luganda Radio Corpus for Automatic Speech Recognition
<p>The Makerere AI Lab has built an end-to-end CTC Luganda ASR model using radio data. Having encountered data challenges in working with low resource languages, we take the initiative together with our partners to release the first radio corpus for Luganda.</p> <p>The corpus of 155 hours is publicly available online under the Creative Commons BY-NC-ND 4.0 license. The dataset release is comprised of the following:</p> <ol> <li>20 hours of human transcribed radio speech. The audio is 16kHZ, mono channel and with 16 bit rate. </li> <li>Two CSV files for the 20-hour human transcribed dataset - cleaned.csv contains cleaned transcripts and uncleaned.csv contains uncleaned transcripts. The uncleaned transcripts contain extra speech details included in tags like [laughter] for laughter, and [um] for filler pauses, which speaker is talking, where each speaker is assigned an identifier A or B.</li> <li>The transcription guide used to transcribe the radio dataset.</li> <li> A multi-speaker untranscribed dataset of 6 hours of radio data. 1.4 hours of women voices and 4.6 hours of men voices. Each audio is a ten-seconds clip with a single speaker.</li> <li> 135 hours of multi-speaker untranscribed radio data.</li> </ol> <p><strong>NOTE: You can read and cite our paper published in the </strong><a href="http://www.lrec-conf.org/proceedings/lrec2022/pdf/2022.lrec-1.208.pdf"><strong>Proceedings of the 13th Conference on Language Resources and Evaluation (LREC 2022)</strong></a> The Dataset is published under Creative Commons BY-NC-ND 4.0 license and in order for us to monitor who is using it for the right license we request that you reach out to us officially. </p>
Solar flare and radio burst effects on GNSS signals and the ionosphere during September 2017
<p>Belém and Petrolina magnetometer data for September 6 and 7, 2017.</p>
Datasets related to the paper for Radio Science Special Section GASS2023 (Paper #2024RS008022)
Open the record for dataset details and reuse information.
The dispersion measure and rotation measure from fast radio burst host galaxies based on the TNG50 simulation
<p>Supplementary data to the paper "The dispersion measure and rotation measure from fast radio burst host galaxies based on the TNG50 simulation" accepted at A&A.</p> <p>The public TNG50 simulation data of the IllustrisTNG project are obtained through the website: https://www.tng-project.org/data/</p> <p>We placed a total of 16.5 million FRBs in 16 500 TNG50 galaxies at redshifts of 0<z<2, with stellar masses in the range 9<log(M*/M_sun)<12. We calculated the DM and RM host galaxy values, which we publish together with the galaxy IDs in TNG50, positions of the FRBs, galaxy inclinations, and the electron density and gas density at the position of the FRBs.</p>
Radio interview with Statia LVV radio on Coralita on Statia
<p>Findings of the first two years of research about Coralita on Statia, conducted 24th of January 2017. Interviewer Anthony Reid, interviewee Jetske Vaas</p>
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.