US-Rosemount

Water vapor isotope experiment was conducted at Rosemount site, Rosemount, USA (44.70N, 93.08W). The site includes two sets: Soybean (G21, Apr 2007 - Oct 2007) and tall tower (Jan 2010- Dec 2013).


Data download: Tall Tower, Soybean Site

Variable definitions

Tall Tower Data (Rosemount, Minnesota KCMP Tall Tower):

Description

Unit

Equipment

Height (m)

Additional description

Date time

UTC

Water mixing ratio

ppmv

Campbell TGA-200

180

Water vapour isotopic ratio (18O)

per mil

Campbell TGA-200

180

Normalized to V-SMOW; Humidity dependence correlation: Dripper system

Standard deviation of 18O

per mil

Campbell TGA-200

180

Hourly

Water vapour isotopic ratio (D)

per mil

Campbell TGA-200

180

Normalized to V-SMOW; Humidity dependence correlation: Dripper system

Standard deviation of D

per mil

Campbell TGA-200

180

Hourly

Air temperature

K

HMP45C

3.0

Relative humidity

<=100%

HMP45C

3.0

Air pressure

Pa

HMP45C

3.0

Precipitation

mm

TE525MM

 -

Net radiation

W/m2

CNR-1

3.7

Wind speed

m/s

DA600-62AX

2.1

Wind direction

 °C

DA600-62AX

2.1

Air temperature

K

ERA5

Relative humidity

<=100%

2

ERA5

Air pressure

Pa

2

ERA5

Precipitation

mm

ERA5

Net radiation

W/m2

ERA5

Wind speed

m/s

ERA5

Wind direction

 °C

10

ERA5

Soybean site Data (Rosemount, Minnesota Soybean site):

Description

Unit

Equipment

Height (m)

Additional description

Date time

UTC

Water mixing ratio

ppmv

Campbell TGA-200

3

Water vapour isotopic ratio (18O)

per mil

Campbell TGA-200

3

Normalized to V-SMOW; Humidity dependence correlation: Dripper system

Standard deviation of 18O

per mil

Campbell TGA-200

3

Hourly

Water vapour isotopic ratio (D)

per mil

Campbell TGA-200

3

Normalized to V-SMOW; Humidity dependence correlation: Dripper system

Standard deviation of D

per mil

Campbell TGA-200

3

Hourly

Air temperature

K

HMP45C

3.0

G21

Relative humidity

<=100%

HMP45C

3.0

G21

Air pressure

Pa

HMP45C

3.0

G21

Precipitation

mm

TE525MM

G21

Net radiation

W/m2

CNR-1

3.7

G21

Wind speed

m/s

DA600-62AX

2.1

G21

Wind direction

°C

DA600-62AX

2.1

G21

Air temperature

K

DA600-62AX

2.1

ERA5

Relative humidity

<=100%

2

ERA5

Air pressure

Pa

2

ERA5

Precipitation

mm

ERA5

Net radiation

W/m2

ERA5

Wind speed

m/s

ERA5

Wind direction

°C

10

ERA5

Reference papers

         Griffis, T.J., Lee, X., Baker, J.M., Billmark, K., Schultz, N., Erickson, M., Zhang, X., Fassbinder, J., Xiao, W. and Hu, N., 2011. Oxygen isotope composition of evapotranspiration and its relation to C4 photosynthetic discrimination. Journal of Geophysical Research: Biogeosciences, 116(G1).

        Griffis, T.J., Wood, J.D., Baker, J.M., Lee, X., Xiao, K., Chen, Z., Welp, L.R., Schultz, N.M., Gorski, G., Chen, M. and Nieber, J., 2016. Investigating the source, transport, and isotope composition of water vapor in the planetary boundary layer. Atmospheric Chemistry and Physics, 16(8), pp.5139-5157.

Site contact

        Name: Timothy Griffis

        Email: timgriffis@umn.edu