This Pedgaonkar_readme20240720.txt file was generated on 20240720 by Apoorva Pedgaonkar. Modified on 20240722 by Kaylee Alexander ------------------- GENERAL INFORMATION ------------------- 1. Title of Dataset : Interpolated Electron Density vs. Altitude Data, January 2020 2. Author Information Principal Investigator Contact Information Name: Apoorva Pedgaonkar Institution: University of Utah Address: 543 S 900 E, Apt A2, Salt Lake City, Utah 84102 Email: apoorvapedgaon6@gmail.com ORCID: 0009-0007-6486-7550 3. Date of data collection (single date, range, approximate date): 20200120 4. Geographic location of data collection (where was data collected?): Salt Lake City, Utah 5. Information about funding sources that supported the collection of the data: NA -------------------------- SHARING/ACCESS INFORMATION -------------------------- 1. Licenses/restrictions placed on the data: Public Domain – This data is free of copyright restrictions (e.g. government sponsored data). 2. Links to publications that cite or use the data: NA 3. Links to other publicly accessible locations of the data: This link was used to collect the data: https://kauai.ccmc.gsfc.nasa.gov/instantrun/iri. 4. Links/relationships to ancillary data sets: The data is publicly available to export from this site: https://kauai.ccmc.gsfc.nasa.gov/instantrun/iri. 5. Was data derived from another source? Yes If yes, list source(s): Community Coordinated Modeling center of NASA. 6. Recommended citation for the data: Pedgaonkar, Apoorva. 2024. "Electron Density vs. Altitude Data, January 2020." The Hive: University of Utah Research Data Repository. http://doi.org/10.7278/S5d-hpp0-g1wy. --------------------- DATA & FILE OVERVIEW --------------------- 1. File List A. Filename: NeVLFprop.dat Short description: The electron density at different altitudes along the atmosphere of the earth is collected and organized in International Ionosphere Reference (IRI) database. The link to access it is : https://kauai.ccmc.gsfc.nasa.gov/instantrun/iri/. This data has a spatial resolution of 1km ranging from ground to 1000km. This data was extracted from a quiet solar period and is a nighttime profile of electron density collected on Jan 1st 2020 at the geographic location of Salt Lake City Utah. Since our model requires higher resolution of electron density vs. altitude data, the data collected from the above source was interpolated to finer spatial resolution of 0.1km. Additionally 200km worth of electron density points were added to account for the boundary conditions of the model. Therefore, the file has 12000 spatial points for which the electron density data exists. 2. Relationship between files: NA 3. Additional related data collected that was not included in the current data package: Randoom50000.dat: This is a random number generator file used to create irregularities in the plasma density profile in our model. This has no link to the above file. 4. Are there multiple versions of the dataset? No -------------------------- METHODOLOGICAL INFORMATION -------------------------- 1. Description of methods used for collection/generation of data: The data is available publicly at https://kauai.ccmc.gsfc.nasa.gov/instantrun/iri/. One must enter the date and location and time to get this data. This data was collected at nighttime, on Jan 1st 2020 at Salt Lake City Utah from the IRI database. This data has 1000 points from ground to 1000kms. Once collected, to make useful for modeling of ELF/VLF waves propagating through the ionosphere using an FDTD model of 0.1km, requires interpolating the raw data to 0.1km instead of 1km. This is done in MATLAB using the interp function. Additionally, 200km worth oof data points are padded such that the electron density holds constant from 1000km to 1200km. This is done to allow implementation of boundary conditions. 2. Methods for processing the data: Interpolation (Using MATLAB interp function) of raw data to a lower resolution of 0.1km instead the original resolution of 1km. Therefore, the total number of points are 12000 noon as opposed to 1200 before. 3. Instrument- or software-specific information needed to interpret the data: One can copy the data and view it in excel or USE MATLAB or python to view it. Data gets is exported in .dat file for ease of reading in our Fortran codes. 4. Standards and calibration information, if appropriate: I did not collect. The data from an instrument. It is taken off a online database. 5. Environmental/experimental conditions: Data is from Jan. 1st 2020, taken at the geographical location of Salt Lake City Utah at 22:00 hours 6. Describe any quality-assurance procedures performed on the data: Check the plot after interpolation to make sure there are no weird transitions. 7. People involved with sample collection, processing, analysis and/or submission: International Ionosphere Reference (IRI) database, Community Coordinated Modeling Center of NASA ----------------------------------------- DATA-SPECIFIC INFORMATION FOR: NeVLFprop.dat ----------------------------------------- 1. Number of variables: 1 2. Number of cases/rows: 12000 3. Variable List A. Name: [Electron Density in 1/m^3] Description: It is Electron density vs Altitude data with the first point corresponding to Electron density at 0.1km and last point corresponds to electron density at 1200km 4. Missing data codes: NA 5. Specialized formats of other abbreviations used: NA