Documentation for /eve_analysis/ssw/ssw/sdo/eve/idl/

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eve_download_data.pro


Author information

Author

Don Woodraska

Copyright

Copyright 2015 The Regents of the University of Colorado. All rights reserved. This software was developed at the University of Colorado's Laboratory for Atmospheric and Space Physics, SDO EVE Science Processing Operations Center.

Version

$Id: eve_download_data.pro 66720 2015-04-01 17:52:40Z dlwoodra $

top source eve_download_data

result = eve_download_data(yyyydoy [, /evS_L2] [, /evL_L2] [, /esp_L1] [, /level3] [, /high_res_merged] [, /angstrom_merged] [, /nanometer_merged] [, output_directory=string])

This function downloads all SDO EVE data products of a specified type for the specified 7-digit year and day of year. The default data product type is the EVE Level 2 Spectrum (/evS_L2). Other options include /evL_L2, /esp_L1, /level3, /high_res_merged, /angstrom_merged, and /nanometer_merged.

All EVE data products from level 1, 2, and 3 are calibrated.

This software requires IDL 6.4 or greater.

Parameters

yyyydoy in required type=long or lonarr

7-digit year and day of year (2010365)

Keywords

evS_L2 in optional type=boolean

Set this keyword to download FITS files matching EVS_L2_*fit.gz These are the routine level 2 spectra products. They contain high resolution, high cadence spectra files. This is the DEFAULT option if no other is specified.

evL_L2 in optional type=boolean

Set this keyword to download FITS files matching EVL_L2_*fit.gz These are the routine level 2 extracted lines, integrated bands, and broadband diodes integrated to match the 10-second spectrum cadence. These data have high cadence lines, bands, and diodes.

esp_L1 in optional type=boolean

Set this keyword to download FITS files matching esp_L1_* These are the routine level 1 ESP products at native 4 Hz integration rates. These are highest cadence ESP broadband diode data files.

level3 in optional type=boolean

Set this keyword to download FITS files matching EVE_L3_* These are the routine level 3 data products and contain the daily averages of EVE measurements. These daily data files contain the high resolution spectrum plus daily averages of all the lines, bands, and diodes from the level 2 products.

high_res_merged in optional type=boolean

Set this keyword to download the current mission merged SAV file This contains the highest resolution daily average spectra from level 3 merged into one mission-length file. FITS and NetCDF versions are also available from the web site.

angstrom_merged in optional type=boolean

Set this keyword to download the current mission merged SAV file These are daily averages from the high_res_merged integrated onto 1 angstrom bins. FITS and NetCDF versions are also available from the web site.

nanometer_merged in optional type=boolean

Set this keyword to download the current mission merged SAV file These are daily averages from the angstrom_merged integrated onto 1 nanometer bins. FITS and NetCDF versions are also available from the web site.

output_directory in optional type=string

Provide a string indicating where the data files will be placed on your computer. If the direcory does not exist, a prompt will be issued to create the directory.

Examples

Normal usage would be to define an array of 7-digit YYYYDOY for the individual dates to request.: IDL> ydlist = long(2015000) + [1, 2, 3] IDL> status = eve_download_data( ydlist, /evs_L2 ) Normally, you would want to place the data files into a directory for later analysis.: IDL> mydir = './data' IDL> status = eve_download_data( 2015001, /evs_L2, output_directory=mydir ) Any routine EVE data products can be downloaded for the list of days provided. To download the level 2 lines/bands/diodes files: IDL> status = eve_download_data( yyyydoy, /evl_L2 ) To download the level 3 daily average files (one per day): IDL> status = eve_download_data( yyyydoy, /level3 ) To download the ESP level 1 4 Hz diode measurements: IDL> status = eve_download_data( yyyydoy, /esp_L1) To download the high resolution mission merged IDL SAV file: IDL> status = eve_download_data( /high_res_merged ) To download the 1 angstrom integrated mission merged IDL SAV file: IDL> status = eve_download_data( /angstrom_merged ) To download the 1 nm integrated mission merged IDL SAV file: IDL> status = eve_download_data( /nanometer_merged ) Note that only one product type can be downloaded with one call to this function. Specifying multiple product types will only download one, the last one that is checked. Consider them mutually exclusive.

File attributes

Modification date: Wed Apr 1 20:14:48 2015
Lines: 309
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