Flight Level Analysis from the 2014 DEEPWAVE campaign
Code and Analysis by Alison D. Nugent and Ronald B. Smith
Email: nugent@ucar.edu or ronald.smith@yale.edu with questions

Purpose: This documentation, code, and analysis is provided as a reference.
It includes our best estimates of the energy and momentum fluxes measured
over New Zealand along with a few other state variables described below.

Main file with data values: Deepwave2014.txt, and with the same data but in
an excel format in Deepwave2014.xls.

Included Variables:

RF_num - research flight number

Leg_num - leg number for each RF as defined by the Smith group

Mtn_leg - an index value to determine if a flight leg passed over the 
southern alps. A 1 is included for a "mountain leg" and a 0 otherwise.

Dist2NZ - units of km. Another measure of a "mountain leg" where the 
distance from the center of a flight leg to Mt. Cook is computed.

Date - date in MDDYY format

St_time - start time of the leg, in the units used within the netcdf file  (time in seconds since midnight UTC)

En_time - end time of the leg, again in the units of time used within the netcdf file  (time in seconds since midnight UTC)

St_Lat, St_Lon - the starting latitude and longitude pair for the 
beginning of each leg, in units of degrees South and degrees East

End_Lat, End_Lon - the ending latitude and longitude pair for the end
of each leg

Distnce - total leg length, units of km

Heading - average heading in deg

Pres_mn - average pressure in Pa. mn indicates leg mean

Temp_mn - average temperature in degC. mn indicates leg mean

Alt_mn - average altitude in m.

U_mn - average U (or X or Latitudinal) direction wind speed in m s-1

V_mn - average V (or Y or Meridional) direction wind speed in m s-1

W_mn - average W (or Z or Vertical) direction wind speed in m s-1

MFx - x direction momentum flux. units of Pa

MFy - y direction momentum flux. units of Pa

EFz_Mom - vertical energy flux computed from MFx, MFy, U and V. units W m-2

EFz - vertical energy flux. units of W m-2

EFx - x direction energy flux. units of W m-2

EFy - y direction energy flux. units of W m-2

Note: NaN is a fill value when data is not available. this occurs
when missing datapoints in a flight leg generate bad analysis data.
pos2dist is a matlab function to compute distance between two points.

Documents Provided:
Matlab code for computing the quantities above: TableCode.m
Matlab lookup table for getting the leg times: rflookup_final.m
Matlab function used in TableCode.m: pos2dist.m
Space delimited text file with titles, units, and values for all legs:
Deepwave2014.txt
Excel table containing the same information: Deepwave2014.xls


For equations and additional resources, see "TableCode.m" for exact
computational methods,  and our recent manuscript accepted to JAS for 
descriptions and motivation:

"Stratospheric Gravity Wave Fluxes and Scales during DEEPWAVE"

by: Ronald B. Smith, Alison D. Nugent, Christopher G. Kruse,
David C. Fritts, James D. Doyle, Stephen D. Eckermann, Michael J. Taylor,
Andreas Dornbrack, Michael Uddstrom, William Cooper, Pavel Romashkin,
Jorgen Jensen, and Stuart Beaton

This document should be cited in all references to the analysis of the
flight level data done by the Smith group.