The directory structure below is an attempt to categorize how the data,
primarily from ship cruises, will be organized into the ETL data system
for access by users.

-   The **project** directory will contain a metafile describing the
    project/experiment and instrumentation involved. Information to be
    included: Project name, PI, date, platform/location, reference,
    instrumentation, instrumentation mentor's

-   The **location/platform** directory will be the location of any
    instrumentation. This could be a ship, a fixed land site, an
    aircraft, etc.

    -   The **instrumentation** directory will include all instruments
        for that location/platform. A meta file should exist for each
        instrument describing that instrument and the data it collects.
        Some directories may have sub-directories down to a more
        specific list of instrumentation (ie radars and radiometers). An
        instrument should ***not be included*** if is not a part of a
        project to avoid confusion.

        -   The **raw** directory will contain the raw data collected in
            the field. These data may or may not be useable by everyone.
            ASCII, binary, netcdf, etc. Files that are too large for
            storage here will have information as to where the data are
            stored (ie DVD) and how they can be accessed.

        -   The **raw** **images** directory contains a ***quick look***
            at the data. This maybe daily 2D images, profiles of
            measured winds, or times series of various measured
            parameters and could be created in the field or first thing
            when the data return to Boulder. Quick look images should
            have consistent scales for easy interpretation between days
            along with an explanation of the display. Time should be UTC
            and dates both Julian Day and YYMMDD when possible. The
            current EPIC MMCR data display is a good example of how a
            Quick Look might appear
            (http://www.etl.noaa.gov/programs/2001/epic/mmcr.html).

        -   A **processed** directory can be added whenever necessary.
            Processed data are data that have been altered in any
            fashion. This includes simple reformatting of the data or
            merging of data. Meta files should exist for each new type
            of file.

        -   A **software/code** directory should be added to store any
            programs written to display or process the data (unless the
            code is proprietary) along with a description of what the
            code does.

Once this PROJECT tree is filled with data down to the raw and rawimages
level it will be backed up to DVD(s). This should happen as soon after
completion of a cruise as possible.

**ET6 Cruise database format**

**EXPERIMENT**

**EPIC2001** (Project)

**RBN** (Location/platform..ship, aircraft, land site, etc)

**balloon**

**raw** (\*.wnd and \*.ptu ascii files and binary files)

**rawimages** (T/RH/WS/WD profiles)

**radar**

**profile**r (915)

raw (\*.spc {spectra}, \*.25c {shipsmotion}, \*.14c {winds} files)

rawimages (daily wind barb profiles and daily 0,1,2 moment time ht
plots)

**sband**

raw (\*.spc {spectra}, ship motion files)

rawimages (daily 0,1,2 moment time/ht plots)

**cband**

raw (too large...on DVD as needed)

rawimages (hrly intensity scans and maybe VAD winds)

**mmcr**

raw (moment and spectra netcdf files)

rawimages (daily 0,1,2 moments time/ht plots)

**radiometer**

**mailbox** (2030ghz)

raw

rawimages (time series of brightness temps, liquid water)

**NPCO** (NOAA Portable Cloud Observatory 20,30,90ghz)

**raw**

**rawimages** (time series of brightness temp, liquid water)

**ceiliometer**

**raw (**PSU zipped files or BT \*.raw zipped files)

**rawimages** (PSU daily cloud base and reflectivity time/ht plots or BT
reflectivity)

**flux**

**raw** (daily P0-P7 flux ascii files)

**rawimages** (entire cruise times series of T,RH,WS,WD,SR,IR)

**lidar**

**raw**

**rawimages**

**shipscs**

**raw** (\*.hdr and elg files)

**rawimages** (entire cruise times series of T,RH,WS,WD,rain)

**wave**

**raw**

**rawimages**