AndreaBozzo/ceres-open-data-index huggingface dataset:
BOREAS TF-08 NSA-OJP and SSA-OBS Ceilometer Data

The BOREAS TF-08 team used ceilometers to collect data on the fraction of the sky covered with clouds and the cloud height. Included with these data is the surface-based lifting condensation level, derived from temperature and humidity values acquired at the flux tower at the NSA-OJP site. Ceilometer data were collected at the NSA-OJP site in 1994 and at the NSA-OJP and SSA-OBS sites in 1996.

Tags: earth-science-atmospheric-water-vapor-atmosphere-water-vapor-indicators-humidity, earth-science-clouds-atmosphere-cloud-properties-cloud-ceiling, earth-science-clouds-atmosphere-cloud-properties-cloud-frequency
Organization: National Aeronautics and Space Administration
ROSETTA-ORBITER 67P OSINAC 3 EXT3-MTP035 RDR V3.0

This CODMAC level 3 data set contains radiometric calibrated image data in W/m^2/sr/nm, acquired by the OSIRIS Narrow Angle Camera on the Rosetta spacecraft during the ROSETTA EXTENSION 3 mission phase, covering the period from 2016-09-26T06:40:00.000 to 2016-10-01T00:00:00.000. The prime target is comet 67P/Churyumov-Gerasimenko 1 (1969 R1). This version V3.0 supersedes previous deliveries of the same dataset with the following changes since the last version: Lien corrected dataset after the July and October 2018 PSA/PDS external peer reviews. Updated documentation and ancillary files, added document on bandpass filter. Updated SCIENCE_USER_GUIDE_V03.PDF to include one section about FAQ and one section about image data quality. Added shutter backtravel and readout issues to image quality map. Updated DATA_QUALITY_ID keyword in image header. Improved handling of images with missing packets.

Tags: __
Organization: National Aeronautics and Space Administration
Vega 1 Magnetic Field Data (0.1 s), Halley Comet

This product contains high-resolution (0.1 s) magnetic field data for intervals of the closest approach of the Vega 1 spacecraft to Halley comet. Magnetic field and position data are in the cometocentric solar ecliptic (CSE) coordinate system. CSE coordinate system for the spacecraft position: * Origin is at comet position, x-axis from comet to the Sun, z-axis to ecliptic northpole. * The (x,y)-plane is parallel to the ecliptic plane. CSE coordinate system for the magnetic field data: * Axes are parallel to the CSE system for the position. * This coordinate system is valid only for very short time, about 4 hours around the closest approach of the spacecraft to the comet, since for a larger angular distance of the spacecraft from the comet, the direction to the Sun from both objects will be different.

Tags: ephemeris, magneticfield
Organization: National Aeronautics and Space Administration
BOREAS TE-23 Canopy Architecture and Spectral Data from Hemispherical Photos

The BOREAS TE-23 team collected hemispherical photographs in support of its efforts to characterize and interpret information on estimates of canopy architecture and radiative transfer properties for most BOREAS study sites. Various OA, OBS, OJP, YJP, and YA sites in the boreal forest were measured from May to August 1994. The hemispherical photographs were used to derive values of LAI, Leaf angle, Gap fraction, and Clumping index. This documentation describes these derived values. The derived data are stored in tabular ASCII files. The hemispherical photographs are stored in the original set of 42 CD-ROMs, that were supplied by TE-23.

Tags: earth-science-vegetation-biosphere-canopy-characteristics
Organization: National Aeronautics and Space Administration
Polar Plasma Wave Instrument (PWI), Wideband Receiver (WBR) 4.016 microsecond resolution

PWI>Plasma Wave Instrument Reference: Gurnett, D.A. et al, The Polar Plasma Wave Instrument, Space Science Reviews, Vol. 71, pp. 597-622, 1995. donald-gurnett@uiowa.edu An FFT on 1992 values was used in calibrating the data; i.e., perform FFT, calibrate in frequency domain, perform inverse FFT to get calibrated time series. Coordinate system used: antenna coordinate system, where the u-axis is offset by -45 degrees from the spacecraft x-axis, the v-axis is offset by -45 degrees from the spacecraft y-axis, and the z-axis is identical to the spacecraft z-axis. The effective noise bandwidth is the data sampling frequency divided by the size of the FFT (number of input samples) multiplied by 1.5 to to correct for the effects of a Hanning window applied to the time- domain samples. Hence, the effective noise bandwidth is 1.5 * delta_f. These data come in snapshots of 1992 or 3984 points every 0.064 seconds. Duration of a snapshot is less when the instrument is in duty cycle modes. Since Epoch time is in milliseconds, the times for the data points will not be unique unless the fmsec (fraction of milliseconds) is appended to the Epoch0 time for that point. The frequency filters used for the wideband receiver have a range that limits the calibration. The following table specifies the range of frequencies for which the calibration is certified. Outside this range the amplitude values may be in error and should not be used. +------------------------------------------------+ Translation Filter Freq Range ------------------------------------------------ 0 kHz 90 kHz 7.5 kHz- 90.0 kHz 125 kHz 90 kHz 131.9 kHz-214.8 kHz 250 kHz 90 kHz 254.3 kHz-341.2 kHz 500 kHz 90 kHz 504.79 kHz-591.1 kHz 0 kHz 10 kHz 0.035 kHz- 11.64 kHz 0 kHz 22 kHz 0.065 kHz- 21.59 kHz 0 kHz 1-3 kHz 1.0 kHz- 3.0 kHz 0 kHz 3-6 kHz 3.0 kHz- 6.0 kHz +------------------------------------------------+ The cadence value given here is computed from the inverse of the sampling rate (249 kHz). For a description of the PWI receivers and the different operational modes see: http://www-pw.physics.uiowa.edu/plasma-wave/istp/polar/modes.html

Tags: auroral-hiss, auroral-kilometric-radiation, bernstein-waves, cdf-global-attribute-adid_ref-nssd2001, cdf-global-attribute-data_type-h9high-resolution-data, cdf-global-attribute-data_version-1, cdf-global-attribute-discipline-space-physicsmagnetospheric-science, cdf-global-attribute-mission_group-polar-cdf-global-attribute-mission_group-polar, cdf-global-attribute-mods-created-jan-2004, cdf-global-attribute-project-istpinternational-solar-terrestrial-physics, chorus, continuum-radiation, electostatic-solitary-waves, equatorial-noise, esw, ion-acoustic-waves, langmuir-waves, lower-hybrid-waves, plasmaspheric-hiss, upper-hybrid-waves, waves-passive-cdf-global-attribute-title-polar-pwi-wbr, whistlers
Organization: National Aeronautics and Space Administration
BOREAS TF-11 SSA Fen Leaf Gas Exchange Data

The BOREAS TF-11 team gathered a variety of data to complement their tower flux measurements collected at the SSA Fen site. This data set contains single-leaf gas exchange data from the SSA Fen site during 1994 and 1995. These leaf gas exchange properties were measured for the dominant vascular plants using portable gas exchange systems.

Tags: earth-science-ecological-dynamics-biosphere-ecosystem-functions-photosynthesis, earth-science-vegetation-biosphere-leaf-characteristics, earth-science-vegetation-biosphere-vegetation-species
Organization: National Aeronautics and Space Administration
ROSETTA-ORBITER 67P OSINAC 2 ESC3-MTP018 EDR V3.0

This CODMAC level 2 data set contains uncalibrated image data in DN unit, acquired by the OSIRIS Narrow Angle Camera on the Rosetta spacecraft during the COMET ESCORT 3 mission phase, covering the period from 2015-06-30T23:25:00.000 to 2015-07-28T23:24:59.000. The prime target is comet 67P/Churyumov-Gerasimenko 1 (1969 R1). This version V3.0 supersedes previous deliveries of the same dataset with the following changes since the last version: Lien corrected dataset after the July and October 2018 PSA/PDS external peer reviews. Updated documentation and ancillary files, added document on bandpass filter. Updated SCIENCE_USER_GUIDE_V03.PDF to include one section about FAQ and one section about image data quality. Added shutter backtravel and readout issues to image quality map. Updated DATA_QUALITY_ID keyword in image header. Improved handling of images with missing packets. Included FITs files. Browse products changed to the same size as the original image.

Tags: __
Organization: National Aeronautics and Space Administration
Ulysses SCE 10-min Radio Ranging Data C4

This data set includes differential range delay data, and electron content samples of the intervening solar corona between Ulysses and Earth, at ten-minute intervals from the Ulysses Solar Corona Experiment (SCE) during the fourth solar conjunction (C4) of the Ulysses mission in the interval of February 23 to March 14, 1995. SCE uses a dual-frequency radio-sounding technique to exploit the dispersive nature of ionized media on the propagation of the two downlinks. The tiny Doppler shift due to plasma moving in and out of the ray path is greater at S-band than at the higher frequency X-band. Similarly, because the group velocity of waves propagating in ionized media is smaller for lower frequencies, the round-trip time of propagation for coded range signals between the spacecraft and the ground station is longer in the S-band than in the X-band.\n\nFor the C4 solar conjunction the received frequencies at S-band and X-band were recorded at time intervals of one second, and differential range delay data were recorded nominally at intervals of about five minutes. These telemetry data are archived at JPL in raw form on Archival Tracking Data Files (ATDF's) after downlink through the NASA Deep Space Network (DSN) and intermediate processing, after which the total electron content (TEC) of the intervening coronal region between Ulysses and the Earth is determined by extraction of the ranging data from the ATDF files for further processing. The ATDF files also include doppler ranging data which are not included in this data set.\n\nAll fully processed ranging data during the Ulysses C4 solar conjunction have been provided in the RANGE_C4_TAB ascii file. This file contains recorded and calculated parameters for data, time (UT - ground received), run and tracking station number, differential range delay in range units (RU), and total or columnar electron content (TEC) in units of "hexems" (10**16 e/sq-mt). Accuracy of the range measurement is of order 50 RU. Further details of the data processing are given in the SCE_DS_C4.TXT documentation file and the references therein. Details on the SCE Experiment are available in Bird, M. K., et al., "The Coronal Sounding Experiment," Astron. and Astrophys. Supp. Ser., 92(2), 425-430, 1992.

Tags: energeticparticles
Organization: National Aeronautics and Space Administration
BOREAS TF-11 Biomass Data over the SSA-Fen

The BOREAS TF-11 team collected several data sets in their efforts to fully describe the flux and site characteristics at the SSA-Fen site. This data set contains plant cover, standing crop of plant biomass, and estimated net primary productivity at each chamber site at the end of the 1994 field season. The measurements were conducted as part of a 2x2 factorial experiment in which we added carbon (300 g m-2 as wheat straw) and nitrogen (6 g m-2 as urea) to four replicate locations in the vicinity of the TF-11 tower.

Tags: earth-science-ecological-dynamics-biosphere-ecosystem-functions-primary-production, earth-science-vegetation-biosphere-biomass, earth-science-vegetation-biosphere-vegetation-cover
Organization: National Aeronautics and Space Administration
Vega 1 Magnetic Field Data (1 min), Halley Comet

This product contains 1-minute magnetic field data for intervals of the closest approach of the Vega 1 spacecraft to Halley comet. Magnetic field data are in SE coordinate system, while spacecraft positions are in cometocentric (solar) ecliptic coordinates, CSE. Magnetic field data are presented in spacecraft-centered solar ecliptic (SE) coordinate system as Bxse, Bzse, Byse: * Bxse is directed from the spacecraft to the Sun. * Bzse is directed along the Z axis of the Solar Ecliptic system (to ecliptic pole). * Byse completes the right handed set and B=sqrt(Br^2+By^2+Bz^2). CSE (CometoCentric ecliptic coordinate system) for the spacecraft position: * Origin is at comet position, x-axis from comet to the Sun, z-axis to ecliptic northpole. * The (x,y)-plane is parallel to the ecliptic plane.

Tags: ephemeris, magneticfield
Organization: National Aeronautics and Space Administration
BOREAS TF-11 CO2 and CH4 Flux Data from the SSA-Fen

The BOREAS TF-11 team collected several data sets in their efforts to fully describe the flux and site characteristics at the SSA-Fen site. This data set contains fluxes of methane and carbon dioxide at the SSA fen site measured using static chambers. The measurements were conducted as part of a 2x2 factorial experiment in which we added carbon (300 g m-2 as wheat straw) and nitrogen (6 g m-2 as urea) to four replicate locations in the vicinity of the TF-11 tower. In addition to siting and treatment variables, it reports air temperature and water table height relative to the average peat surface during each measurement. The data set covers the period from the first week of June 1994 through the second week of September, 1994.

Tags: earth-science-ground-water-terrestrial-hydrosphere-ground-water-features-water-table, earth-science-soils-land-surface-soil-gas-air
Organization: National Aeronautics and Space Administration
VOYAGER 1 SATURN EGRESS RADIO                                      OCCULTATION RAW DATA V1.0

This data set consists of raw data   collected during the Saturn egress radio occultation of Voyager 1   on 13 November 1980 plus ancillary files that might be useful in   analysis of those data. The raw data are sampled voltage outputs   from receivers tuned to the Voyager carrier frequencies at both   S-band and X-band during the occultation.  The data have been   reduced to give profiles of temperature and pressure as a function   of height in the atmosphere, to infer magnetic field orientations   in the upper ionosphere, and to determine the distribution of   particles and particle properties in the ring system.

Tags: __
Organization: National Aeronautics and Space Administration
Vega 2 Magnetic Field Data (1 min), Halley Comet

This product contains 1-minute magnetic field data for intervals of the closest approach of the Vega 2 spacecraft to Halley comet. Magnetic field data are in SE coordinate system, while spacecraft positions are in cometocentric (solar) ecliptic coordinates, CSE. Magnetic field data are presented in spacecraft-centered solar ecliptic (SE) coordinate system as Bxse, Bzse, Byse: * Bxse is directed from the spacecraft to the Sun. * Bzse is directed along the Z axis of the Solar Ecliptic system (to ecliptic pole). * Byse completes the right handed set and B=sqrt(Br^2+By^2+Bz^2). CSE (CometoCentric ecliptic coordinate system) for the spacecraft position: * Origin is at comet position, x-axis from comet to the Sun, z-axis to ecliptic northpole. * The (x,y)-plane is parallel to the ecliptic plane.

Tags: ephemeris, magneticfield
Organization: National Aeronautics and Space Administration
BOREAS TF-11 SSA Fen 1996 Water Surface Film Capping Data

The BOREAS TF-11 team gathered a variety of data to complement their tower flux measurements collected at the SSA Fen site. The data described in this document were made by the TF-11 team at the SSA Fen site to quantify the effect that the films observed to form on open water surfaces had on the transfer of carbon dioxide and methane from the water to the air. Measurements of fluxes of carbon dioxide and methane were made in 1994 and in 1996 using the chamber flux method. A gas chromatograph and a LI-COR LI-6200 were used to measure concentrations and to calculate the fluxes.

Tags: earth-science-atmospheric-chemistry-atmosphere-carbon-and-hydrocarbon-compounds-atmospheric-car, earth-science-atmospheric-chemistry-atmosphere-carbon-and-hydrocarbon-compounds-methane
Organization: National Aeronautics and Space Administration
Climatological Monthly Frequency of Dust Storm over Land for Varying Intensities, Based on MODIS Terra Deep Blue Level 2 Aerosol Products MOD04_L2 Collection 6.1, on a Global 0.1 by 0.1 Degree Grid, Level 3 Version 1 (MODFDS_CLM_GLB_L3) at GES DISC

Version 1 is the current version of the dataset. This collection MODFDS_CLM_GLB_L3 provides level 3 climatological monthly frequency of dust storms (FDS) over land from 175°W to 175°E and 80°S to 80°N at a spatial resolution of 0.1˚ x 0.1˚. It is derived from Level 2, the Moderate Resolution Imaging Spectroradiometer (MODIS) Deep Blue aerosol products Collection 6.1 from Terra (MOD04_L2). The dataset is the climatological monthly mean for each month averaged over 2000 to 2022. The FDS is calculated as the number of days per month when the daily dust optical depth is greater than a threshold optical depth (e.g., 0.025) with two quality flags: the lowest (1) and highest (3). It is advised to use flag 1, which is of lower quality, over dust source regions, and flag 3 over remote areas or polluted regions. Eight thresholds (0.025, 0.05, 0.1, 0.25, 0.5, 0.75, 1, 2) are saved separately in eight files. If you have any questions, please read the README document first and post your question to the NASA Earthdata Forum (forum.earthdata.nasa.gov) or email the GES DISC Help Desk (gsfc-dl-help-disc@mail.nasa.gov).

Tags: earth-science-aerosols-atmosphere-aerosol-optical-depth-thickness, earth-science-aerosols-atmosphere-dust-ash-smoke
Organization: National Aeronautics and Space Administration
Vega 2 Magnetic Field Data (0.1 s), Halley Comet

This product contains high-resolution (0.1 s) magnetic field data for intervals of the closest approach of the Vega 2 spacecraft to Halley comet. Magnetic field and position data are in the cometocentric solar ecliptic (CSE) coordinate system. CSE coordinate system for the spacecraft position: * Origin is at comet position, x-axis from comet to the Sun, z-axis to ecliptic northpole. * The (x,y)-plane is parallel to the ecliptic plane. CSE coordinate system for the magnetic field data: * Axes are parallel to the CSE system for the position. * This coordinate system is valid only for very short time, about 4 hours around the closest approach of the spacecraft to the comet, since for a larger angular distance of the spacecraft from the comet, the direction to the Sun from both objects will be different.

Tags: ephemeris, magneticfield
Organization: National Aeronautics and Space Administration
BOREAS TGB-03 Plant Species Composition Data over the NSA Fen

The BOREAS TGB-03 team collected several data sets that contributed to understanding the measured trace gas fluxes over sites in the NSA. This data set contains information about the composition of plant species that were within the collars used to measure NEE. The species composition was identified to understand the differences in NEE among the various plant communities in the NSA fen. The data were collected in July of 1994 and 1996.

Tags: earth-science-ecological-dynamics-biosphere-ecosystem-functions-decomposition, earth-science-soils-land-surface-denitrification-rate, earth-science-vegetation-biosphere-vegetation-cover, earth-science-vegetation-biosphere-vegetation-species
Organization: National Aeronautics and Space Administration
MARS EXPRESS MARS MRS 1/2/3 EXTENDED MISSION 4 3583 V1.0

This is a Mars Express Radio Science data set, collected during the extended mission phase 2013-01-01 to 2014-12-31. It is a Global Gravity measurement and covers the time 2013-06-02T05:28:45.000 to 2013-06-02T07:28:26.500.

Tags: __
Organization: National Aeronautics and Space Administration
BOREAS TGB-01/TGB-03 NEE Data over the NSA Fen

The BOREAS TGB-01 and TGB-03 teams collected several data sets that contributed to understanding the measured trace gas fluxes over sites in the NSA. This data set contains NEE measurements collected with chambers at the NSA fen in 1994 and 1996. Gas samples were extracted approximately every 7 days from chambers and analyzed at the NSA lab facility.

Tags: earth-science-atmospheric-chemistry-atmosphere-carbon-and-hydrocarbon-compounds-atmospheric-car, earth-science-ecological-dynamics-biosphere-ecosystem-functions-photosynthesis, earth-science-ecological-dynamics-biosphere-ecosystem-functions-respiration-rate, earth-science-vegetation-biosphere-photosynthetically-active-radiation
Organization: National Aeronautics and Space Administration
Ulysses GRB Integral 0.5-Second Omnidirectional Counting Rates

This data set contains data and software for integral 0.5-second omnidirectional counting rates from the Ulysses Gamma Ray Burst\n(GRB) experiment. It consists of count rates from the sum of two hemispherical detectors convering 4 pi steradians and operating continuously. The detectors\nare 3 mm thick CsI scintillators coupled to photomultiplier tubes. The nominal energy range is 25-150 keV, but Table 1 (see below) should be consulted to find\nthe accurate thresholds for any day of the mission. A more complete description of the instrument may be found in Hurley et al. (1992) and Cotin et al. (1983).\nAlthoughthe prime objectives of this investigation are the study of solar and cosmic x- and gamma-ray bursts, it should be noted that the experiment is also\nsensitive to solar protons and electrons. The former deposit energy directly in the scintillator if they are energetic enough, while the latter may produce x-\nradiation locally by bremsstrahlung. Thus although the counting rates are generally stable at about 500 c/s over the long term, there are periods of\nweeks to a month or so when the rates increase considerably due to particles. Examples may be found in March 1991 (solar protons) and February 1992\n(particles in the Jovian magnetosphere).\n         \nThe time resolution of the data takes on one of four values depending on the telemetry rate and instrument operating mode: 0.25, 0.5, 1, or 2 seconds. Data\nrate changes produce short spikes in the count rates due to a processing artefact. These can in principle be corrected if the data are scanned and the\nrate changes are identified; the count rate spikes can then be adjusted to their correct values. There are also short (one sample long) count rate\ndropouts, due to an artefact of the onboard software. These may be seen in the sample plots; they cannot be corrected for.\n         \nTwo figures give examples of solar and cosmic events in the data. The upper panel gives the count rates for day 142, 1993, around 8.24 hours UT. The solar event is evident as a 300 second long increase. Note the count rate dropouts. The bottom panel includes a 20 second long cosmic gamma-ray burst from day 237, 1993 around 8.79 hours UT.

Tags: energeticparticles
Organization: National Aeronautics and Space Administration
ROSETTA-ORBITER 67P RSI 1/2/3 PRELANDING 0181 V1.0

This is a Rosetta Radio Science data set, collected during the PRELANDING phase 2014-01-21 to 2014-11-18. It is a Global Gravity measurement at the comet 67P and covers the time 2014-08-06T00:22:05.000 to 2014-08-06T02:42:09.000.

Tags: __
Organization: National Aeronautics and Space Administration
BOREAS TGB-01 CH4 & CO2 Chamber Flux Data: NSA

Chamber flux measurements were taken at the Northern Study Area (NSA) Old Jack Pine (OJP), Young Jack Pine (YJP), Old Black Spruce (OBS), and Beaver Pond (BP) sites during the summer of 1994. The purpose of these measurements was to examine the trace gas exchange between the atmosphere and the boreal soils. The BOREAS TGB-01 team made methane (CH4) and carbon dioxide (CO2) dark chamber flux measurements from 16- May-1994 through 13-Sep-1994. Gas samples were extracted approximately every 7 days from dark chambers and analyzed at the NSA lab facility.

Tags: earth-science-soils-land-surface-soil-gas-air, earth-science-soils-land-surface-soil-respiration, earth-science-soils-land-surface-soil-temperature
Organization: National Aeronautics and Space Administration