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An aircraft data acquisition system records data from many different instrument.  Measurement from each instrument are converted to physical units if necessary and instrument file is create containing all parameters obtained for the instrument.  The instrument files are typically further processed and combined together into a summary file containing parameters of scientific interest.  Below are instrument files.
An aircraft data acquisition system records data (i.e. *.sea level 1 file) from many different instruments.  Instrument files (Level 2 and Level 3 files) are created containing all parameters obtained from the instrument by the data acquisition system.  Measurements from each instrument are converted from engineering units (Level 2) to physical units (Level 3) if necessary.  The instrument files are typically further processed using measurements from several instruments in Level 4 processing.  The final processing step is typically to combine parameters of scientific interest into a summary file.  All ASCII files (*.raw, *.clean) are in the NASA/UND format which is based on "[http://aerosol.atmos.und.edu/ADPAA/formatspec.txt Format Specification for Data Exchange]" written by Steven E. Gains and R. Stephen Hipsking.  All data files have a [http://aerosol.atmos.und.edu/ADPAA/fileheader.html meta-data header].  The file format specifications (formatspec.txt) and a meta-data header variable example (fileheader.html) are provided via the ADPAA repository (src/share directory).


===Level 2 Processing===
Below is a list of files by processing level.  The parameter information is also available from the ADPAA repository in the src/share directory.  Information about processing modules for each instrument is given in the Data Streams section of this Wiki.  Instrument manufacturer's full names are [http://www.applanix.com| Applanix Corp. (Applanix)], [http://aventech.com/| Aventech Research (Aventech)], [http://www.brechtel.com/| Brechtel Manufacturing Inc. (BMI)], [http://www.dropletmeasurement.com/| Droplet Measurement Technologies (DMT)], [http://honeywell.com| Honeywell International Inc. (Honeywell)], [http://www.omega.com/| Omega Engineering (Omega)], [http://www.scieng.com/| Science Engineering Associates (SEA)], [http://www.specinc.com/| Stratton Park Engineering Company (SPEC)], and [http://www.tsi.com/| TSI Incorporated (TSI)]. 
 
=====Level 3 Files=====
From Level 1
* [[.:instrumentfiles:2DC|2-DC Probe File - 2dc.spec.raw]]
* [[.:instrumentfiles:2DC|2-DC Probe File - 2dc.spec.raw]]
* [[.:instrumentfiles:aimms1|Aventech AIMMS ID 1 Stream - serialA.aimms.raw]]
* [[.:instrumentfiles:aimms1|Aventech AIMMS ID 1 Stream - serialA.aimms.raw]]
* [[.:instrumentfiles:aimms2|Aventech AIMMS ID 2 Stream - serialB.aimms.raw]]
* [[.:instrumentfiles:aimms2|Aventech AIMMS ID 2 Stream - serialB.aimms.raw]]
* [[.:instrumentfiles:applanix|Applanix Position and Orientation Systems (POS) - applanix.raw]]
* [[.:instrumentfiles:applanix|Applanix Position and Orientation Systems (POS) - applanix.raw]]
* [[.:instrumentfiles:ccncc|Cloud Condensation Nuclei Counter (CCNC) Concentration Stream - serialc.ccnc.raw]]
* [[.:instrumentfiles:mcpc|BMI Mixing Condensation Particle Counter (MCPC) Stream File - serial.mcpc.raw]]
* [[.:instrumentfiles:ccnch|Cloud Condensation Nuclei Counter (CCNC) Housekeeping Stream - serialh.ccnc.raw]]
* [[.:instrumentfiles:CIPhouse|DMT Cloud Imaging Probe (CIP) Housekeeping File - house.cip.raw]]
* [[.:instrumentfiles:CDP_Counts|Cloud Droplet Probe (CDP) Counts File - counts.cdp.raw]]
* [[.:instrumentfiles:ccncc|DMT Cloud Condensation Nuclei Counter (CCNC) Concentration Stream - serialc.ccnc.raw]]
* [[.:instrumentfiles:ccnch|DMT Cloud Condensation Nuclei Counter (CCNC) Housekeeping Stream - serialh.ccnc.raw]]
* [[.:instrumentfiles:CDP_Counts|DMT Cloud Droplet Probe (CDP) Counts File - counts.cdp.raw]]
* [[.:instrumentfiles:spp_pcasp|DMT Passive Cavity Aerosol Spectrometer Probe (PCASP) Stream File - counts.spp_pcasp.raw]]
* [[.:instrumentfiles:pax|DMT Photoacoustic Extinctiometer (PAX) Stream File - serial.pax.raw]]
* [[.:instrumentfiles:PIPhouse|DMT Precipitation Imaging Probe (PIP) Housekeeping File - house.pip.raw]]
* [[.:instrumentfiles:crds|Picarro Cavity Ringdown Spectrometer (CRDS) Stream File - serial.crds.raw]]
* [[.:instrumentfiles:cpc|TSI Condensation Particle Counter (CPC) Stream File - serial.cpc.raw]]


===Level 3 Processing===
From Level 2
* [[.:instrumentfiles:CitationWinds|Citation Research Aircraft Winds File - REAL.winds.raw]]
* [[.:instrumentfiles:CitationWinds|Citation Research Aircraft Winds File - REAL.winds.raw]]
* [[.:instrumentfiles:EGG|Chilled Mirror Humidity File - egg.raw]]
* [[.:instrumentfiles:EGG|Chilled Mirror Humidity File - egg.raw]]
* [[.:instrumentfiles:CDP_Conc|Cloud Droplet Probe (CDP) Concentration File - conc.cdc.raw]]
* [[.:instrumentfiles:CDP_Conc|DMT Cloud Droplet Probe (CDP) Concentration File - conc.cdc.raw]]
* [[.:instrumentfiles:CPC_Conc|Condensation Particle Counter (CDP) Concentration File - conc.cpc.raw]]
* [[.:instrumentfiles:TDL_Humidity|Tunable Diode Laser Hygrometer (TDL) Humidity File  - tdl.hum.raw]]
* [[.:instrumentfiles:TDL_Humidity|Tunable Diode Laser Hygrometer (TDL) Humidity File  - tdl.hum.raw]]
* [[.:instrumentfiles:CPCconc|TSI Condensation Particle Counter (CPC) Concentration File - conc.cpc.raw]]
* [[.:instrumentfiles:spp_pcasp|DMT Passive Cavity Aerosol Spectrometer Probe (PCASP) Concentration File - conc.spp200.raw]]


===Level 4 Processing===
=====Level 4 Files=====
* [[.:instrumentfiles:CCNCcon|Cloud Condensation Nuclei Counter (CCNC) Concentration File  - dmtccn_conc.raw]]
* [[.:instrumentfiles:basic|Basic Meteorological Parameters File - basic.raw]]
* [[.:instrumentfiles:CCNCavg|Cloud Condensation Nuclei Counter (CCNC) Average Concentration File  - dmtccn_conc_avg.raw]]
* [[.:instrumentfiles:CCNCcon|DMT Cloud Condensation Nuclei Counter (CCNC) Concentration File  - dmtccn_conc.raw]]
* [[.:instrumentfiles:CCNCspec|Cloud Condensation Nuclei Counter (CCNC) Supersaturation Spectrum File  - dmtccn_ss_efit.raw]]
* [[.:instrumentfiles:CCNCavg|DMT Cloud Condensation Nuclei Counter (CCNC) Average Concentration File  - dmtccn_conc_avg.raw]]
* [[.:instrumentfiles:CCNCspec|DMT Cloud Condensation Nuclei Counter (CCNC) Supersaturation Spectrum File  - dmtccn_ss_efit.raw]]

Latest revision as of 21:14, 6 August 2018

An aircraft data acquisition system records data (i.e. *.sea level 1 file) from many different instruments. Instrument files (Level 2 and Level 3 files) are created containing all parameters obtained from the instrument by the data acquisition system. Measurements from each instrument are converted from engineering units (Level 2) to physical units (Level 3) if necessary. The instrument files are typically further processed using measurements from several instruments in Level 4 processing. The final processing step is typically to combine parameters of scientific interest into a summary file. All ASCII files (*.raw, *.clean) are in the NASA/UND format which is based on "Format Specification for Data Exchange" written by Steven E. Gains and R. Stephen Hipsking. All data files have a meta-data header. The file format specifications (formatspec.txt) and a meta-data header variable example (fileheader.html) are provided via the ADPAA repository (src/share directory).

Below is a list of files by processing level. The parameter information is also available from the ADPAA repository in the src/share directory. Information about processing modules for each instrument is given in the Data Streams section of this Wiki. Instrument manufacturer's full names are Applanix Corp. (Applanix), Aventech Research (Aventech), Brechtel Manufacturing Inc. (BMI), Droplet Measurement Technologies (DMT), Honeywell International Inc. (Honeywell), Omega Engineering (Omega), Science Engineering Associates (SEA), Stratton Park Engineering Company (SPEC), and TSI Incorporated (TSI).

Level 3 Files

From Level 1

From Level 2

Level 4 Files
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