IHOPUDSnR README

The data in this directory are a suite of 30-min meteorological, radiometric, and 
flux data obtained during the International H2O Project 2002 (IHOP) at the 
nine NCAR/IHOP surface stations. The data are the same as those found in the 
IHOPUDSn.txt files except these files also contain the latent heat flux calculated as 
a residual of the surface energy budget as follows:

	LE=Rnet – H – G 

where LE is the latent heat flux, Rnet is the net radiation, H is the sensible heat flux, 
and G is the soil (ground) heat flux.

All of the data, with the exception of the energy fluxes, have been gap filled using data 
from proximal sites or statistical techniques when necessary to create a continuous data 
set for the entire study period. Missing data in the flux data is denoted as 9999.


FILE NAME: 

IHOPUDSnr.txt

n 	Numeric value indicating the site number. 


See http://www.atd.ucar.edu/rtf/projects/ihop_2002/isff/ and 
http://www.rap.ucar.edu/projects/land/IHOP/ for more details 
regarding the sites.

FIELDS
Col # 		Field Name 	Description

DATE and TIME 			Both are given based on CDT (GMT - 5) in Col 1-5 												and GMT in col 6-10 as follows:

1		YEAR		Year of Study formatted as yyyy 
2		MONTH		Month of Year formatted as mm 
3		DAY		Day of Month formatted as dd 
4		HHMMSS 		The time of day of the measurement in CDT (GMT - 5) 
      				The formatting is as follows: 
      					HH: the hour according to 24 hour time 
      					MM: the minutes 
      					SS: the seconds 
5		JULIAN		The Julian day of Year

6		YEAR		Year of Study formatted as yyyy 
7		MONTH		Month of Year formatted as mm 
8		DAY		Day of Month formatted as dd 
9		HHMMSS 		The time of day of the measurement in GMT
      				The formatting is as follows: 
      					HH: the hour according to 24 hour time 
      					MM: the minutes 
      					SS: the seconds 
10				JULIAN	The Julian day of Year
												
11		Rsw.in		Incident shortwave radiation (W/m^2)
12		Rlw.in		Incident longwave radiation (W/m^2)
13		T		Air Temperature (deg C)
14		P		Barometric Pressure (mb)
15		MR		Mixing Ratio (g/Kg)
16		Spd.10m		Wind Speed at z = 10 m (m/s)
17		U.10m		U Wind Component at z = 10 m (m/s)
18		V.10m		V Wind Component at z = 10 m (m/s)
19		rainacc		Accumulated Rain (mm)
20		rainr		Rate of Rainfall (mm/hr)
21		Rnet		Net Radiation (W/m^2)
22		Rpar		Photosynthetic Active Radiation (mmol/s/m^2)
23		Tsfc		Surface Temperature (deg C)
24		LE		Latent Heat Flux (W/m^2)
25		LE.c		Recalculated Latent Heat Flux (W/m^2)
26		H		Sensible Heat Flux (W/m^2)
27		Gsfc		Soil Heat Flux (W/m^2)


ADDITIONAL  IDENTIFIERS

      STN			The station identification number for the site 													where the data was collected.


ADDITIONAL INFORMATION 

      9999 			Missing Data. 


