Flight cruise: Washington, D.C.

Water vapor isotope vertical profile measurement was conducted from Washington, D.C. to Baltimore, MD, US (38.7259N, -77.5204E) in 8, 12, 17, 18, 19 February 2016.

Data download: MetafileDataset

    1. Time stamps

             Elapsed time in UTC seconds.

    2. Data format

             Data files are csv formatted.

    3. Time zone convention

             Time is reported in UTC.

    4. Missing data

             Missing data is replaced with -99999.

    5. Variable definitions

Column

Description

Unit

Equipment

Height (m)

Additional description

Column 1

Time

UTC

Garmin GPS/INS

UTC

Column 2

Latitude

degrees

Garmin GPS/INS

Column 3

Longitude

degrees

Garmin GPS/INS

Column 4

Altitude

m/s

Best Air Turbulence (BAT) Probe

m

Column 5

Wind Speed

degrees

BAT probe

Column 6

Wind Direction

m/s

BAT probe

Column 7

Vertical Wind

m/s

BAT probe

Column 8 

Static Pressure

mbar

BAT probe

Column 9

Ambient Pressure

Torr

Picarro G2301-m

Column 10 

Ambient Temperature

K

Fast Ultra-sensitive Thermocouple (FUST) probe

Column 11 

Ambient Temperature

K

microbead thermistor

* It is suggested that the microbead temperature be used.

Column 12

Potential Temperature

K

microbead thermistor

Column 13

Irradiance

W/m2

LI-COR LI-200R pyranometer

Column 14

Airspeed

m/s

BAT probe

Column 15

Groundspeed

m/s

BAT probe

Column 16

Heading

deg

BAT probe

Column 17

Carbon dioxide mole fraction

ppmv

Picarro G2301-m

Column 18

Methane mole fraction

ppmv

Picarro G2301-m

Column 19

Water vapor mole fraction

%

Picarro G2301-m

Column 20

Ozone mole fraction

ppbv

2B Technologies Model 202 ozone monitor

Column 21

Water vapor mole fraction

ppmv

Los Gatos Research (LGR) Triple Water Vapor Isotope Analyzer (TWVIA)  (Model: 911-0034)

Column 22

δD

LGR TWVIA

Column 23

δ18O

LGR TWVIA

Column 24

Deuterium excess (d-excess)

LGR TWVIA

Column 25

Smoothed (20-second rolling average) δD

LGR TWVIA

Column 26

Smoothed (20-second rolling average) δ18O

LGR TWVIA

Column 27

Smoothed (20-second rolling average) d-excess

LGR TWVIA

Column 28

Total error in δD

LGR TWVIA

Column 29

Instrument precision error in δD

LGR TWVIA

Column 30

Calibration error in δD

LGR TWVIA

Column 31

Total error in δ18O

LGR TWVIA

Column 32

Instrument precision error in δ18O

LGR TWVIA

Column 33

Calibration error in δ18O

LGR TWVIA

Column 34

Total error in d-excess

LGR TWVIA

Column 35

Instrument precision error in d-excess

LGR TWVIA

Column 36

Calibration error in d-excess

LGR TWVIA

6. Reference papers      

7. Site contact

          Name: Lisa Welp and Olivia Salmon

          Email: Olivia Salmon (oliviaesalmon@gmail.com) and Lisa Welp (lwelp@purdue.edu)