This README.txt file was generated on 2021-04-15 by Da Pan

------------------------------GENERAL INFORMATION-----------------------------
1. Title of Dataset: 
Data for "Ammonia Dry Deposition in an Alpine Ecosystem Traced to Agricultural 
Emission Hotpots"

2. Author Information
	A. Principal Investigator Contact Information
		Name: Mark A. Zondlo	
		Institution: Princeton University 
		Address: CEE / Princeton
			 Engineering Quadrangle E209A
			 Olden Street
			 Princeton, NJ 08544
		Email: mzondlo@princeton.edu	

	B. Alternate Contact Information
		Name: Da Pan
		Institution: Colorado State University
		Address: Colorado State University
			 Department of Atmospheric Science
			 200 West Lake Street
			 1371 Campus Delivery
			 Fort Collins, CO 80523-1371
		Email: Da.Pan@colostate.edu

3. Date of data collection:
	Mobile laboratory observations: 2014-07-22 and 2014-07-31
	Flux observations: 2015-07-22 to 2015-08-29 and 2016-06-24 to 2016-08-23 

4. Geographic location of data collection:
	Rocky Mountain National Park, Colorado, U.S. 

5. Information about funding sources that supported the collection of the data: 
	D.P. and L.G. acknowledge support for the DISCOVER-AQ field measurements
	from NASA NNX14AT36G/NNX14AT32G and X.G. acknowledges support from a 
	NASA Earth and Space Science Fellowship NASA 80NSSC17K0377, satellite 
	analyses supported by NASA NNX16AQ90G. Measurements in RMNP were 
	supported by the National Park Service and USEPA. The assumptions, 
	findings, conclusions, judgements, and views presented herein are those 
	of the authors and should not be interpreted as necessarily 
	representing the National Park Service.

--------------------------SHARING/ACCESS INFORMATION---------------------------
1. Licenses/restrictions placed on the data: 
	Creative Commons Attribution 4.0 International (CC-BY): 
	https://creativecommons.org/licenses/by/4.0/

2. Recommended citation for this dataset: 
	Please cite "Ammonia Dry Deposition in an Alpine Ecosystem Traced to 
	Agricultural Emission Hotpots" once it is published on Environmental
	Science and Technology. 

------------------------------DATA & FILE OVERVIEW-----------------------------
This dataset contains ammonia concentration observations and measured, modeled, 
and gap-filled flux results for the article "Ammonia Dry Deposition in an 
Alpine Ecosystem Traced to Agricultural Emission Hotpots " by Da Pan, Katherine 
B. Benedict, Levi M. Golston, Rui Wang, Jeffrey L. Collett Jr, Lei Tao, Kang 
Sun, Xuehui Guo, Jay Ham, Anthony J. Prenni, Bret A. Schichte, Tomas Mikoviny, 
Markus Müller, Armin Wisthaler, Mark A. Zondlo

The dataset contains:
1. DAQ_CO_0722_ground_mobile.csv
2. DAQ_CO_0731_ground_mobile.csv
3. EC_flux_results_2015.csv
4. EC_flux_results_2016.csv
5. Gap_filled_flux_data_2016.csv
6. README.txt

-----------------------------------File 1-2------------------------------------
These files are 1-Hz mobile measurements made during DISCOVER-AQ field campaign 
with height data. 10 Hz data are listed in:
https://www-air.larc.nasa.gov/cgi-bin/ArcView/discover-aq.co-2014?GROUND-MOBILE=1

Each of the file contains 12 columns:

TS: Time stamps of data collection time (local time, format mm/dd/yyyy HH:MM:SS)
Lat: Latitude in deg
Lon: Longitude in deg
Hgt: Height in m
Driving speed: Driving speed in km hr-1
T: Temperature in K
p: Pressure in kPa
NH3: Ammonia mixing ratio in ppbv
CH4: Methane mixing ratio in ppmv
CO: Carbon monoxide ratio in ppbv
CO2: Carbon dioxide ratio in ppmv
H2O: Water vapor in %

"-9999" means missing or invalid data.

-----------------------------------File 3-4------------------------------------
These files are 30-min results of sensible heat, latent heat, CO2, NH3, and 
other micrometeorological parameters. Raw 10-Hz measurements are available upon
request from the corresponding author. 

Each of the file contains 68 columns with units listed in the second row. 

"-9999" means missing or invalid data.

------------------------------------File 5-------------------------------------
This file contains 30-min quality-controlled EC flux, model simulated flux, and 
gap-filled flux of NH3 for 2016. The file consists of 5 columns:

TS: Time stamps (local time, format mm/dd/yyyy HH:MM)
nh3_flux (EC obs): NH3 flux observed by the EC method
nh3_flux (modeled): Model simulated NH3 flux
nh3_flux (gap-filled): Gap-filled NH3 flux
flux_err (S.D.): Error of gap-filled flux as standard deviation. 

------------------------------------File 6-------------------------------------
File 6 is this README file.