Turbulence profile (raw data) within and above a maize field from the Mahomet (IL) field measurements

# Turbulence raw data from maize field experiment (Mahomet, IL, July 2011)

# Data collected with 5 Campbell Scientific sonic anemometers CSAT3 obtained within and above a maize field (5 measurement heights)

# This is a 7.5-hour statistically stationary raw turbulence data series in an ASCII file

# Sampling frequency is 20Hz, all velocities are stored im m/s and temperatures in C

# The file also has a header with this information and additional information

# The main reference for the experiment is

S.C. Gleicher, M. Chamecki, S.A. Isard, Y. Pan and G.G. Katul

        Interpreting three-dimensional spore concentration measurements and escape fraction in a crop canopy using a coupled Eulerian-Lagrangian stochastic model

        Agricultural and Forest Meteorology, 194:118-131

# The main reference for data analysis for this period is

M. Chamecki

        Persistence of velocity fluctuations in non-Gaussian turbulence within and above plant canopies

        Physics of Fluids, 2013, 25:1-14

# There is some additional information (mostly the numerical modeling of the experiment) in

Y. Pan, M. Chamecki and S.A. Isard

        Large eddy simulation of spore dispersion within the canopy roughness sublayer

        Journal of Fluid Mechanics, 2014, 753:499-534 

# CSAT3 Sonic measurement heights(m) on 07/10/2011 (in order that appears in the datafile)

# Sonic (height):  1 (3.50m), 2 (1.40m), 3 (0.70m), 4 (2.10m), 5 (2.80m)

# Therefore, in order to read from the lowest to the highest sonic use (in Fortran):

     READ(1,*)timestamp,count,u_r(5,i),v_r(5,i),w_r(5,i),T_r(5,i), &

                                                  u_r(2,i),v_r(2,i),w_r(2,i),T_r(2,i), &

                                                  u_r(1,i),v_r(1,i),w_r(1,i),T_r(1,i), &

                                                  u_r(3,i),v_r(3,i),w_r(3,i),T_r(3,i), &

                                                  u_r(4,i),v_r(4,i),w_r(4,i),T_r(4,i),flags(1:20)

# This reading order will store the sonics from lowest to highest in each variable, so that

#  u_r(1,:) is the lowest and u_r(5,:) is the highest one

# Additional information about the field

# Plant Heights(m) on 07/10/2011

# Date Plant1 Plant2 Plant3 Plant4 Plant5 Plant6 Average

  0710    2.06    2.14    2.10    2.14    1.98    1.86     2.05

# We use an average canopy height of 2.05m

# Leaf area index measured is 3.3 m2/m2