Basic Data Requirements

PSInet's primary goal is to collect time series water potential measurements with paired site-level meteorological data, collected in:

1. Ambient environments.
2. Experimentally manipulated/managed landscapes.
3. Greenhouse/growth chamber studies.

Highlighted below are the Basic Data Requirements for submissions within these 3 study types.

Please contact [______] for any further questions.

Data Requirements

1. Ambient Environments

Variable	Requirement-level	Frequency
Plant water potential	Required	Discrete or Continuous
Soil water content	Preferred	Discrete or Continuous
Relative humidity	Preferred	Continuous
Air Temperature	Preferred	Continuous
Vapor pressure deficit	Preferred	Continuous
Photosynthetically active radiation (PPFD or PAR)	Preferred	Continuous
Solar or net radiation	Preferred	Continuous
Windspeed	Preferred	Continuous

2. Experimentally manipulated/managed landscapes

Variable	Requirement-level	Frequency
Plant water potential	Required	Discrete or Continuous
Soil water content	Required	Discrete or Continuous
Relative humidity	Required	Continuous
Air Temperature	Required	Continuous
Vapor pressure deficit	Required	Continuous
Photosynthetically active radiation (PPFD or PAR)	Preferred	Continuous
Solar or net radiation	Preferred	Continuous
Windspeed	Preferred	Continuous

3. Greenhouse/growth chamber studies

Variable	Requirement-level	Frequency
Plant water potential	Required	Discrete or Continuous
Soil water content	Required	Discrete or Continuous
Relative humidity	Required	Continuous
Air Temperature	Required	Continuous
Vapor pressure deficit	Required	Continuous
Photosynthetically active radiation (PPFD or PAR)	Required - See Note	Continuous
Solar or net radiation	Required - See Note	Continuous
Windspeed	Preferred	Continuous

Note: Greenhouse/growth chamber submission still acceptable if only photosynthetically active radiation OR net radiation is available.