65, 1001
Wolfe, Glenn
NASA Goddard Space Flight Center
GSFC Greenhouse Gas Suite
BLUEFLUX
1, 1
2022, 04, 19, 2022, 12, 02
1
Time_Mid, s, seconds since midnight
31
1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1
-99999999, -99999999, -99999999, -99999999, -99999999, -99999999, -99999999, -99999999, -99999999, -99999999, -99999999, -99999999, -99999999, -99999999, -99999999, -99999999, -99999999, -99999999, -99999999, -99999999, -99999999, -99999999, -99999999, -99999999, -99999999, -99999999, -99999999, -99999999, -99999999, -99999999, -99999999
Leg, none, Leg Index
Lat, deg, GPS latitude
Lon, deg, GPS longitude
Alt, m, GPS altitude
Dist, m, Distance along leg
ustar, m/s, friction velocity
wstar, m/s, convective velocity scale
H, W/m^2, Sensible heat flux
LE, W/m^2, Latent heat flux from LGR
FCO2, umol/m^2/s, CO2 flux
FCH4, nmol/m^2/s, CH4 flux
H_RE, W/m^2, flux random error
LE_RE, W/m^2, flux random error
FCO2_RE, umol/m^2/s, flux random error
FCH4_RE, nmol/m^2/s, flux random error
H_SE, none, flux systematic error fraction
LE_SE, none, flux systematic error fraction
FCO2_SE, none, flux systematic error fraction
FCH4_SE, none, flux systematic error fraction
H_qflag, none, H quality flag 
LE_qflag, none, LE quality flag
FCO2_qflag, none, FCO2 quality flag
FCH4_qflag, none, FCH4 quality flag 
u, m/s, Along-vector wind speed
v, m/s, Cross-vector horizontal wind speed
WDIR, deg, Calculated horizontal wind direction
WSPD, deg, Calculated horizontal wind direction
u_std, m/s, Standard deviation of along-vector wind speed
v_std, m/s, Standard deviation of cross-vector horizontal wind speed
w_std, m/s, Standard deviation of vertical wind speed
Lobukhov, m, Obukhov length
2
FLIGHT PATTERN: Swamp Box.
PBL height(zi) = 1250 m.
18
PI_CONTACT_INFO: NASA GSFC, Code 614, Greenbelt, MD 20771; glenn.m.wolfe@nasa.gov; 301-614-6008
PLATFORM:  Dynamic Aviation King Air (N87Q)
LOCATION: Homestead, FL, USA, Earth
ASSOCIATED_DATA: See GHG and WINDS files for mixing ratios and meteorology. Spectra, cospectra, flux footprints, and other supporting data available upon request.
INSTRUMENT_INFO: See GHG and WINDS files.
DATA_INFO: Wavelet transforms applied to 10Hz observations over each leg. Scalar time series are detrended with a 40 second (~3 km) running mean. Fluxes include contributions from all frequencies, including those below the cone-of-influence. Raw 10 Hz fluxes are bin-averaged to 1 Hz (~70-80m horizontal resolution). Extrapolation to Earth’s surface requires correction for vertical flux divergence. Surface extrapolation is NOT recommended for any fluxes where a divergence correction is not provided. Divergence corrections are from linear fits to vertical profiles of selected flux legs (see Special Comments). For further details, See Wolfe et al. 2018; https://doi.org/10.5194/amt-11-1757-2018. ustar is filtered for momentum fluxes with the fraction of the cospectral power lying within the cone-of-influence < 0.5. wstar is filtered in the same manner with sensible heat fluxes.
UNCERTAINTY: Errors in each flux (F) contain random (RE) and systematic (SE) components. Random error is due to turbulence (stochastic noise) and instrument noise. Systematic error is due to turbulence sampling (low frequency, long-wave motions), instrument response time (high frequency), and scalar measurement accuracy. SE and RE are provided independently for each flux. Note that RE is given in flux units, while SE is in fractional units. Total error is E = sqrt(RE^2 + (SE*F)^2). Component error contributions are available upon request. When averaging fluxes, average errors are: SEavg = mean(SE), REavg = sqrt(sum(RE^2))/N, where N is # of points in the average. Divergence uncertainty should be added in fractional quadrature with RE and SE: Esurf = Fsurf*sqrt(F_div_err^2 + (RE/F)^2 + SE^2). Fluxes can become spurious at the beginning/end of a leg due to the cone-of-influence. Quality flags (F_qflag) are provided to filter out suspect fluxes. A qflag of 1 denotes good quality fluxes. By definition, F_qflag is 1 when the fraction of cospectral power above the cone-of-influence is > 0.5.
ULOD_FLAG: -77777
ULOD_VALUE: N/A
LLOD_FLAG: -88888
LLOD_VALUE: N/A
DM_CONTACT_INFO: Erin R. Delaria, NASA GSFC; erin.r.delaria@nasa.gov; 301-614-6927
PROJECT_INFO: BLUEFLUX is a NASA Carbon Monitoring Systems (CMS) project to measure greenhouse gases in Florida mangrove and related ecosystems. More info at https://earth-dev.gsfc.nasa.gov/acd/campaigns/blueflux.
STIPULATIONS_ON_USE: Please contact PI or DM for proper use. All NASA data use policies apply. As a matter of professional courtesy, consideration for co-authorship is expected for publications utilizing this data.
OTHER_COMMENTS: Have Fun!
REVISION:R0
R0: This is Final Data. Accuracy and uncertainty have been updated from field data following calibration of the 2401m Picarro with a NOAA Calibration standard. Divergence correction factors are estimated as equal to 1 for all fluxes, as the measured flux divergence was not statistically significant at the altitude of flux measurements. Differences between surface fluxes and reported fluxes may be up to 20%. This 20% uncertainty limit in the flux divergence is determined from measured differences in average fluxes between stacked legs and theoretical mass-balance calculations of flux divergence, as in Wolfe et al., 2015; https://doi.org/10.1002/2015GL065839.
Time_Mid, Leg, Lat, Lon, Alt, Dist, ustar, wstar, H, LE, FCO2, FCH4, H_RE, LE_RE, FCO2_RE, FCH4_RE, H_SE, LE_SE, FCO2_SE, FCH4_SE, H_qflag, LE_qflag, FCO2_qflag, FCH4_qflag, u, v, WDIR, WSPD, u_std, v_std, w_std, Lobukhov
 57896, 1, 25.4477, -80.8867,  87,     64,   0.76,   1.19,   47.9,  140.8,   -2.6,   32.5,   19.0,   84.0,    2.0,   20.9, 0.108, 0.113, 0.111, 0.120, 1.00, 0.00, 0.00, 0.00, -3.677, -2.564, 214.888, 4.483, 1.438, 0.265, 1.095, -794.769
 57897, 1, 25.4477, -80.8874,  86,    119,   0.80,   1.21,   50.7,  170.0,   -2.9,   41.7,   19.3,   75.7,    2.0,   19.5, 0.108, 0.113, 0.111, 0.120, 1.00, 0.00, 0.00, 0.00, -3.648, -1.685, 204.792, 4.018, 1.385, 0.543, 1.115, -882.323
 57898, 1, 25.4477, -80.8880,  87,    185,   0.85,   1.19,   48.4,  201.0,   -3.3,   52.4,   19.3,   76.5,    1.9,   20.5, 0.108, 0.113, 0.111, 0.120, 1.00, 0.00, 0.00, 0.00, -3.052, -0.567, 190.523, 3.105, 1.193, 0.878, 1.127, -1091.649
 57899, 1, 25.4476, -80.8887,  88,    251,   0.79,   1.14,   42.9,  205.7,   -4.2,   47.2,   19.1,   76.9,    1.9,   21.0, 0.108, 0.113, 0.111, 0.120, 1.00, 0.00, 0.00, 0.00, -4.086, -1.348, 198.260, 4.302, 1.171, 0.638, 1.056, -988.304
 57900, 1, 25.4476, -80.8894,  88,    318,   0.70,   1.12,   40.1,  170.5,   -4.4,   29.9,   18.8,   76.4,    1.8,   20.7, 0.108, 0.113, 0.111, 0.120, 1.00, 0.00, 0.00, 0.00, -4.222, -1.987, 205.206, 4.666, 1.119, 0.453, 0.971, -740.823
 57901, 1, 25.4476, -80.8900,  86,    384,   0.63,   1.11,   39.6,  145.0,   -4.3,   22.9,   18.6,   74.8,    1.8,   20.4, 0.108, 0.113, 0.111, 0.120, 1.00, 0.00, 0.00, 0.00, -4.824, -1.512, 197.410, 5.055, 0.979, 0.581, 0.924, -548.841
 57902, 1, 25.4476, -80.8907,  84,    450,   0.62,   1.12,   40.8,  133.4,   -4.1,   25.4,   18.6,   74.5,    1.8,   20.4, 0.108, 0.113, 0.111, 0.120, 1.00, 0.00, 0.00, 0.00, -4.069, -1.029, 194.197, 4.198, 0.938, 0.617, 0.914, -506.641
 57903, 1, 25.4476, -80.8913,  83,    516,   0.61,   1.13,   41.8,  143.6,   -4.1,   31.0,   18.6,   75.5,    1.7,   21.0, 0.108, 0.113, 0.111, 0.120, 1.00, 0.00, 0.00, 0.00, -3.885, -1.194, 197.082, 4.065, 0.984, 0.543, 0.943, -466.544
 57904, 1, 25.4476, -80.8920,  83,    586,   0.57,   1.14,   42.2,  172.0,   -4.1,   42.8,   18.5,   78.1,    1.7,   21.5, 0.108, 0.113, 0.111, 0.120, 1.00, 0.00, 0.00, 0.00, -4.245, -1.923, 204.368, 4.660, 1.037, 0.389, 0.984, -381.288
 57905, 1, 25.4476, -80.8927,  82,    649,   0.58,   1.15,   43.1,  217.3,   -4.1,   64.3,   18.2,   81.2,    1.7,   22.3, 0.108, 0.113, 0.111, 0.120, 1.00, 0.00, 0.00, 0.00, -4.204, -1.967, 205.071, 4.641, 1.034, 0.361, 0.947, -385.283
 57906, 1, 25.4476, -80.8933,  81,    715,   0.62,   1.17,   45.6,  263.2,   -4.6,   78.1,   18.0,   85.4,    1.8,   23.8, 0.108, 0.113, 0.111, 0.120, 1.00, 0.00, 0.00, 0.00, -4.982, -1.986, 201.739, 5.363, 1.031, 0.427, 0.929, -453.520
 57907, 1, 25.4476, -80.8940,  81,    781,   0.64,   1.18,   47.6,  312.4,   -5.3,   89.3,   17.6,   89.2,    1.8,   25.0, 0.108, 0.113, 0.111, 0.120, 1.00, 0.00, 1.00, 0.00, -4.161, -1.628, 201.370, 4.468, 1.060, 0.427, 0.986, -492.058
 57908, 1, 25.4476, -80.8946,  82,    846,   0.57,   1.19,   48.2,  319.8,   -4.5,   92.3,   16.9,   88.4,    1.8,   24.4, 0.108, 0.113, 0.111, 0.120, 1.00, 0.00, 1.00, 0.00, -4.299, -2.424, 209.422, 4.936, 1.096, 0.289, 0.990, -339.315