데이터셋 상세
미국
ICON Extreme Ultraviolet Spectrograph Images
This describes the data produce for ICON EUV Daytime O+ (DP 2.6), which is in NetCDF4 format. These files are named ICON_L2-6_EUV_YYYY-MM-DD_vXXrZZ.NC, where YYYY-MM-DD is the year month day and VXX shows the version number and rZZ shows the revision number of this file. Each individual file nominally contains 1 day (24 hours) of data. The L2 EUV Daytime files are produced from the L1 EUV files, and their primary data product is the O+ profile derived from a retrieval that is detailed in a paper: https://doi.org/10.1007/s11214-017-0385-1. In addition, many other parameters and geophysical data products are included in the file. The data are identified in one of 3 var_types: data – which contains the primary data product; support data – which contains parameters used in the retrieval such as geometry etc. that may also be useful in any analysis of this data; and ignore_data – which are recorded for debugging purposes and should not be used for publication without detailed discussion with the ICON team. The dimensions of the data also indicate its type. For example, anything with epoch as a dimension means there is 1 value corresponding to each instrument exposure. Anything with dimension Input_data corresponds to the input data, passed from Level 1. Anything with a dimension of model refers to the forward model parameters used as part of the inversion. Anything with dimension altitude corresponds to the altitude grid used for the inverted parameters.
데이터 정보
연관 데이터
ICON The Far Ultra Violet Imaging Spectrograph Day Limb Images
공공데이터포털
The FUV instrument takes 2D images of the Earth’s horizon in the Far ultraviolet. The imager is pointing approximately 90 degrees to the spacecraft motion, similar to looking out of the side window of a car as it drives down the road. Onboard electronics read the CCD detectors 8 times per second and collect the data into radiance profiles every 12 seconds. The calibrated level 1 radiances and Level 1 ancillary spacecraft data are combined in a limb retrieval to produce the level 2.4 O/N2 limb product.
ICON The Far Ultra Violet Imaging Spectrograph Dayside Images
공공데이터포털
The FUV instrument takes 2D images of the Earth’s horizon in the Far ultraviolet. The imager is pointing approximately 90 degrees to the spacecraft motion, similar to looking out of the side window of a car as it drives down the road. Onboard electronics read the image 8 times per second and perform Time Delay Integration (TDI) to remove the motion-blur from the images. A turret is used to steer the field of view of the instrument left to right to ensure it always looks along the magnetic meridian (towards the magnetic pole). This describes the data product for ICON FUV Daytime O/N2 (DP 2.4). The ratio of oxygen to nitrogen in the thermosphere is obtained from the two channels of ICON FUV instrument data in, through an inversion process described in https://doi.org/10.1007/s11214-018-0477-6. The L2 FUV Daytime files are produced from the L1 FUV files.
Polar Ultraviolet Imager, Key Parameters
공공데이터포털
The Ultraviolet Imager (UVI) is a small camera that detected and produced images of the ultraviolet light of the aurora, day and night. Key Parameter (KP) images are calculated at nominal 5-10 minute intervals at spacecraft altitudes above 6 Re. The UVI KP image is background subtracted and calibrated to radiance values (photon cm^-2 cm^-1). The data is a rectangular two-dimensional array (228 rows x 200 columns). Only a circular region of the rectangular array contains valid image data. The UVI KP Image Archive (http://tideuvira.nsstc.nasa.gov/uvi/kpgs-Data.htm) allows the user to look at all the KP Mosaics for a selected month. The gif or png plot files contain the up to 35 KP images taken with the LBHL filter. Reference images are also provided showing the location of the UVI field of view relative to continental outlines.
IMAGE Extreme UltraViolet (EUV) Imager, Modified Data 2 (M2), 10 min Data
공공데이터포털
The IMAGE extreme ultraviolet (EUV) imager detects resonantly scattered solar EUV photons with a wavelength of 30.4 nm that have been resonantly scattered by singly ionized helium (Sandel et al., 2000). The sizeable database of IMAGE global snapshots from the extreme ultraviolet (EUV) imager provides revolutionary observations of spatial and temporal plasma distributions throughout the plasmasphere. In this study, the IMAGE EUV data have been mapped to the equator using the approach detailed in Gallagher et al. (2005). IMAGE EUV data have been used to create an automated method that locates and extracts the plasmapause. The plasmapause extraction technique searches a set range of possible plasmasphere densities for a maximum gradient in order to identify the magnetic local time, MLT, dependent plasmapause position as a function of time. This description has been adapted from text appearing in Katus et al. (2015).
International Ultraviolet Explorer
공공데이터포털
The International Ultraviolet Explorer (IUE) performed spectrophotometry at high (0.1-0.3 Å) and low (6-7 Å) resolution between 1150 Å and 3200 Å. The data cover a dynamic range of approximately 17 astronomical magnitudes: -2 to 10 for high dispersion; -2 and 14.9 for low dispersion. Over 104,000 ultraviolet spectra were obtained with IUE between January 26, 1978, and September 30, 1996.
TIMED Global Ultraviolet Imager (GUVI) Airglow Flux 14-day Movies, at Wavelength LBH1 in North Polar Projection
공공데이터포털
GUVI measures FUV Airglow in five Spectral Bands: the atomic HI Lyman-alpha Band, 121.6 nm, two atomic Oxygen OI Bands, 130.4 nm and 135.6 nm, and the molecular Nitrogen Lyman-Birge-Hopfield Short, LBHS, 141 to 152.8 nm, and Lyman-Birge-Hopfield Long, LBHL, 167.2 to 181.2 nm, Bands. The Cross-Track Scanning Spectrograph images a Ground Swath of 3000 km Width providing nearly Contiguous Global Coverage with 15 Orbits per Day. This L1CDisk, Level 1C Disk, Version 3, File provides the calibrated, geolocated, and rectified Intensities for the fourth LBH1, 1400-1500 Å, Wavelength Band. This is a Movie with mapped Images of the Log Intensities by Orbit by using a North Polar Projection.
TIMED Global Ultraviolet Imager (GUVI) Airglow Flux 14-day Movies, at Wavelength 1216 Å in North Polar Projection
공공데이터포털
GUVI measures FUV Airglow in five Spectral Bands: the atomic HI Lyman-alpha Band, 121.6 nm, two atomic Oxygen OI Bands, 130.4 nm and 135.6 nm, and the molecular Nitrogen Lyman-Birge-Hopfield Short, LBHS, 141 to 152.8 nm, and Lyman-Birge-Hopfield Long, LBHL, 167.2 to 181.2 nm, Bands. The Cross-Track Scanning Spectrograph images a Ground Swath of 3000 km Width providing nearly Contiguous Global Coverage with 15 Orbits per Day. This L1CDisk, Level 1C Disk, Version 3, File provides the calibrated, geolocated, and rectified Intensities for the first H Ly-alpha, 1216 Å, Wavelength Band. This is a Movie with mapped Images of the Log Intensities by Orbit by using a North Polar Projection.
목록