diFUME In-situ meteorological dataset

Description

Air temperature and vapor pressure are measured on a micrometeorological tower located near the centre of Basel (BKLI). Vapor Pressure Deficit (VPD) is then calculated based on saturated vapor pressure estimation. Direct and diffuse incoming radiation are measured with a 2-axis sun tracker (INTRA, BRUSAG) at the roof-level in an unobscured location next to the micrometeorological tower. Measured shortwave radiant flux densities (W m-2) are converted to photon flux densities (μmol m-2 s-1) within PAR (i.e. photosynthetic active radiation, solar shortwave radiation between 400 – 700 nm) using a standard conversion factor. Soil temperature (oC) and volumetric water content (m3 m-3) are continuously measured at three different locations of the study area at 10 cm below surface. The locations have different characteristics, BKLI is at a street canyon, BKFP is at a non-irrigated park location and BSMP is at an irrigated park location. Soil temperature is also continuously measured at a station outside the city center (BLER) and soil volumetric water content is estimated from lysimeter measurements from another station outside the city centre (BIN).

Data format: comma separated values (csv)

Time step: 60 min (aggregated)

Station acronym

Geographic location

Variables

Units

Sensor type - model

Sensor height (m a.g.l.)

BKLI

47.56173 °N, 7.58049 °E

Air temperature (Tair)

Degrees Celsius

Thermo-HYGrometer (Thygan)

38

Vapor pressure (WVP)

kPa

Thermo-HYGrometer (Thygan)

38

Saturation vapor pressure (es)

kPa

Estimated by Thygan measurements

38

Vapor pressure deficit (VPD)

kPa

Estimated by Thygan measurements

38

Direct radiation

W / m2

Pyrheliometer (CHP1, Kipp & Zonen)

21

Diffuse radiation

W / m2

Pyranometer (CM21, Kipp & Zonen)

21

PAR direct

μmol / m2 / s

Estimated by Pyrheliometer measurements

21

PAR diffuse

μmol / m2 / s

Estimated by Pyranometer measurements

21

PAR global

μmol / m2 / s

Estimated by Pyrheliometer and Pyranometer measurements

21

Soil temperature (Tsoil)

Degrees Celsius

Thermistor (CS655, Campbell Scientific Inc.)

-0.1

Soil moisture (theta)

m3/m3

Water content reflectometer (CS655, Campbell Scientific Inc.)

-0.1

BKFP

47.56595 °N, 

7.56921 °E

Soil temperature (Tsoil)

Degrees Celsius

Thermistor (CS655, Campbell Scientific Inc.)

-0.1

Soil moisture (theta)

m3/m3

Water content reflectometer (CS655, Campbell Scientific Inc.)

-0.1

BSMP

47.5529 °N, 

7.57456 °E

Soil temperature (Tsoil)

Degrees Celsius

Thermistor (CS655, Campbell Scientific Inc.)

-0.1

Soil moisture (theta)

m3/m3

Water content reflectometer (CS655, Campbell Scientific Inc.)

-0.1

BLER

47.5923 °N, 7.6493 °E

Soil temperature (Tsoil)

Degrees Celsius

Thermistor

-0.1

BIN

47.5411 °N, 7.5835 °E

Soil moisture (theta)

m3/m3

Estimated by weighable lysimeter measurements

-2