# Advanced Resolution Canopy FLOw (ARCFLO) experiment employing the SUbcanopy Sonic Anemometer Network (SUSAN) in WS01 of the HJ Andrews Experimental Forest, July-September 2012

## Dataset

- **Database Code:** MV007

- **Title:** Advanced Resolution Canopy FLOw (ARCFLO) experiment employing the SUbcanopy Sonic Anemometer Network (SUSAN) in WS01 of the HJ Andrews Experimental Forest, July-September 2012

- **Abstract:**

This dataset was collected during one of the ARCFLO (Advanced Resolution Canopy FLOw) experiment series’ field campaigns. This field campaign was carried out in WS1 of the HJ Andrews Experimental forest during July-September 2012 by the biomicrometeorology group, PI Christoph Thomas. The ARCFLO experiment series spanned a wide range of topographic conditions (flat, sloped, mountainous) and canopy architectures (grassland, orchard, open forest, dense forest) and was carried out between 2011 and 2014. It was funded through the NSF Career Award in Physical and Dynamical Meteorology to PI Christoph Thomas. The main goal of this project was to develop a novel improved framework to describe the airflow and its transport under weak-wind conditions for a continuous variation of overstory density and stratification. The objective is to i) identify forcing mechanisms of submeso motions, ii) evaluate the impact of plant canopies of different overstory density on the wind, temperature, and humidity fields, and iii) improve predictors for mixing in plant canopies that incorporate the important physical mechanisms. Observations were be made with a unique combination of new and standard techniques including optical fiber measurement of temperature structure, acoustic remote sensing, ultrasonic anemometers, and laser-illuminated flow visualizations.


- **Keywords:** microclimate; wind direction; wind speed

- **Temporal coverage:** 2012-07-02 to 2012-09-17

- **Principal Investigator:** Christoph K Thomas


## Data Entities

1. MV00701

## Entity 1: MV00701

### Attribute list

- **DBCODE** — varchar, enum

FSDB Database Code

  - **MV007** — FSDB Database Code MV007


- **ENTITY** — numeric(1), range  1.0000  1.0000, number

Entity Number


- **STATION** — varchar, enum

SUSAN Station Number

  - **SUSAN_A1** — Subcanopy Sonic Anemometer Network (SUSAN) A1
  - **SUSAN_A2** — Subcanopy Sonic Anemometer Network (SUSAN) A2
  - **SUSAN_A3** — Subcanopy Sonic Anemometer Network (SUSAN) A3
  - **SUSAN_A4** — Subcanopy Sonic Anemometer Network (SUSAN) A4
  - **SUSAN_B1** — Subcanopy Sonic Anemometer Network (SUSAN) B1
  - **SUSAN_B2** — Subcanopy Sonic Anemometer Network (SUSAN) B2
  - **SUSAN_B3** — Subcanopy Sonic Anemometer Network (SUSAN) B3
  - **SUSAN_B4** — Subcanopy Sonic Anemometer Network (SUSAN) B4
  - **SUSAN_C1** — Subcanopy Sonic Anemometer Network (SUSAN) C1
  - **SUSAN_C2** — Subcanopy Sonic Anemometer Network (SUSAN) C2
  - **SUSAN_C3** — Subcanopy Sonic Anemometer Network (SUSAN) C3
  - **SUSAN_C4** — Subcanopy Sonic Anemometer Network (SUSAN) C4


- **DATETIME** — datetime, freetext

Date and time in Pacific Standard Time (PST) of sensor reading


- **U_MEAN_ROT** — numeric(1), range  0.0000  3.5000, meters per second

mean horizontal wind speed


- **PHI_MEAN** — numeric(1), range  0.0000  360.0000, degrees azimuth

mean horizontal wind direction


- **W_MEAN_UNROT** — numeric(1), range  -1.6700  1.1400, meters per second

mean vertical wind speed, unrotated


- **W_STD_ROT** — numeric(1), range  0.0000  1.0000, meters per second

standard deviation of the vertical wind speed, rotated


- **TS_MEAN** — numeric(1), range  4.2600  39.6700, degrees Celsius

mean sonic air temperature


- **T_HMP** — numeric(1), range  2.8700  38.8100, degrees Celsius

mean dry-bulb air temperature


- **E_HMP** — numeric(1), range  0.5130  2.6950, kilopascal

mean air vapor pressure


## Attribute Definitions

**DATETIME**

Date and time in Pacific Standard Time (PST) of sensor reading


**DBCODE**

FSDB Database Code


**ENTITY**

Entity Number


**E_HMP**

mean air vapor pressure


**PHI_MEAN**

mean horizontal wind direction


**STATION**

SUSAN Station Number


**TS_MEAN**

mean sonic air temperature


**T_HMP**

mean dry-bulb air temperature


**U_MEAN_ROT**

mean horizontal wind speed


**W_MEAN_UNROT**

mean vertical wind speed, unrotated


**W_STD_ROT**

standard deviation of the vertical wind speed, rotated


## Enumerated Domains

### DBCODE

- **MV007** — FSDB Database Code MV007

### STATION

- **SUSAN_A1** — Subcanopy Sonic Anemometer Network (SUSAN) A1

- **SUSAN_A2** — Subcanopy Sonic Anemometer Network (SUSAN) A2

- **SUSAN_A3** — Subcanopy Sonic Anemometer Network (SUSAN) A3

- **SUSAN_A4** — Subcanopy Sonic Anemometer Network (SUSAN) A4

- **SUSAN_B1** — Subcanopy Sonic Anemometer Network (SUSAN) B1

- **SUSAN_B2** — Subcanopy Sonic Anemometer Network (SUSAN) B2

- **SUSAN_B3** — Subcanopy Sonic Anemometer Network (SUSAN) B3

- **SUSAN_B4** — Subcanopy Sonic Anemometer Network (SUSAN) B4

- **SUSAN_C1** — Subcanopy Sonic Anemometer Network (SUSAN) C1

- **SUSAN_C2** — Subcanopy Sonic Anemometer Network (SUSAN) C2

- **SUSAN_C3** — Subcanopy Sonic Anemometer Network (SUSAN) C3

- **SUSAN_C4** — Subcanopy Sonic Anemometer Network (SUSAN) C4