Data Collection during Grassland PROVE
 		Jornada Experimental Range, Las Cruces, New Mexico

	The Grassland PROVE occured between May 20 and May 30, 1997. The
validation efforts took place on the Jornada Experimental Range which is
located just west of Las Cruces, New Mexico.  Data was augmented as more
than 10 institutions participated bringing more than 40 researchers.  A
wide assortment of data were collected during this time.  The three main 
areas of data collection were the grassland site, tower site (transitional),
and the mesquite site.  The following is a brief outline of the 
various data collected by each institution.

I.	University of Arizona
	A.	Ground Exotech measurements 
		1.	Nadir, along 1 km transects at each of the
			three main sites as well as a lakebed site 
	B.	Air Exotech data 
		1.	Off-nadir collected for same four sites as above
	C.	Reference Plate measurements for the Exotech
		1.	taken at tower and grassland sites	
	D.	Cross calibration of the Exotechs
		1.	May 28 at Tuscon airport
		2.	May 29 test flights for the 1 and 15 degree 
			field of view lenses for the two aircraft-mounted
			exotechs were performed on a creosote area between 
			the Tuscon and Ryan airfields
	E.	Quantum  sensor measurements
		1.	taken at the tower and grassland sites
			along 1 km transects; measurements taken
			at 10m marks (and the vegetation that occured
			at these marks)
	F.	Ceptometer measurements
		1.	taken along the 1 km transect (at 10m marks 
			at the tower site, s well as taken at
			the grassland site
	G.	Ground IRT measurements
		1.	taken along the 1 km transect at the grassland
			site three times
	H.	Air IRT measuremets
		1.	taken at the grassland and mesquite sites at 11 am
			on May 25
	I.	Ground MMR measurements
		1.	taken along a 500m transect at the grassland site
	J.	Soil samples 
		1.	taken at the lakebed, tower and grassland sites
			a.	soil reflectance
	K.	Digital Photos 
		1.	taken at the same three sites as above
	L.	GPS photos
		1.	taken at the field corners of the above three sites
	M.	Fraction cover 
		1.	measured at the tower, grassland, and lakebed sites by
			walking along the transects

II.	Boston University/UCL/UWS
	A.	Albedo measurements
		1.	two Kipp and Zonen albedometers
			a.	clear dome
			b.	red dome
		2.	Tower site
			a.	taken at 10 m intervals along the short 
				radial transects at the tower site
				i.	taken multiple times under similar 
					and differing solar conditions
			b.	taken along the east 1 km transect at the
				tower site
		3.	Grassland site
			a.	measurements were made along a 150 m transect at
				10 m intervals; done a total of three times
				through the day
		4.	Multiple sites
			a.	attempts were made to show how albedo
				varies during a day
			b.	measurements made at the sites of
				Dr. Walter-Shea
	B.	Hemispherical photos
		1.	at each location:  taken down to characterize
			vegetation cover; taken at each of the albdeo
			measurement sites
	C.	Reflectance characterization (with ASD PSII spectroradiometer)
		1.	nadir measurements at short northern tower transect and
			at the grassland site
			a.	taken at 10m intervals at same sites as
				albedo measurements.
	D.	Directional measurements
		1.	taken at above sites at 15, 30, 45, and 60 degrees

III.	University of Colorado
	A.	LAI measurements were taken using a Licor LAI-2000
		1.	effective LAI measurements were made at the 
			tower transects ( N,S,E,W) at 5m intervals.
		2.	component LAI measurements were made at randomly 
			picked sites at both the mesquite and the 
			tower site 
	B.	FAPAR measurements were made with a Licor line quantum sensor
		1.	Component FAPAR measuremets were made at the tower 
			and mesquite sites
	C.	Field spectral endmember measurements
		1.	made by species and soil type
		2.	taken at the tower, grassland and mesquite sites
	D.	Leaf optical properties 
		1.	various species
		2.	measured at the tower site 
	E.	Leaf angle measurements
		1.	made by species
		2.	taken at the tower site

IV.	NASA/GSFC
	A.	Using a CIMEL sunphotometer measurements were made at both the 
		tower site and the grassland site
		1.	HRDF, direct and diffuse
	B.	The destructive measurements of leaf area for selected mesquite
		yucca, and morman tea data points were taken with the help
		of ORNL, USDA-ARS, and the University of Oaklahoma
	C.	Stem area of mesquite, yucca, and morman tea

V.	USDA-Hydolab
	A.	Thermal hand held measurements 
		1.	representative vegetation types
		2.	made at the tower site
	B.	ASD FR spectroradiometer measurements 
		1.	made along 3 USDA-ARS 150m  transects
			and taken every 10m
		2.	taken at the tower site where the thermal
			measurements were made
		3.	measurements also taken at the grassland site in a
			90 by 90m grid, every 10m apart
	C.	Laser flew a digital video was taken 
		1.	over flight lines 1, 2, 5, 6, 7, and 8
			(see USDA Jornada map)	
	D.	LAI-2000 measurements
		1.	were made at the tower, grassland and mesquite
			sites 
			a.	made along a 1 km transect at the tower
				site
			b.	for grassland and mesquite sites measurements
				were made along each of the three 150m ARS
				transects

VI.	University of Nebraska-Lincoln
	A.	SE590 spectroradiometer HDRF measurements
		1.	Tower site
			a.	dates collected:  May 23, 25, 28
			b.	species sampled:  destructive mesquite
				(high and low density), destructive yucca,
				destructive morman tea, selected mesquite,
				yucca, morman tea, yucca destructive background,				low density mesquite destructive background,
				and sand (ground)
		2.	Grassland site
			a.	date collected:  May 27
			b.	yucca, grass1, grass2, sand (ground)
		3.	Multiangle photography of the same components

VII.	JPL
	A.	Kipp & Zonen CM7B Albedometer
		1.	Sporadic coverage of tower site 5/24 to 5/28
		2.	Downwelling and upwelling broadband radiances
		3.	Net radiation and albedo vs. time. 
	B.	Sensit Technologies PARABOLAIIIB sphere-scanning
		8-band radiometer
		1.	Sporadic coverage of various sites 5/25 to 5/29
	  		(some coverage in conjunction with CIMEL BRF instrument)
	  	2.	5 degree FOV with 5 deg. angular sampling 
	  	3.	BRDF and products for comparison to overlapping data,
			i.e. albedo.
	C.	Yankee Engineering MFRSR 7-band shadowband radiometer
	  	1.	Continuous coverage of the tower site 5/23 to 5/30
	  	2.	Total, diffuse, and direct, downwelling
			(6 spectral + 1 broadband)
	  	3.	General aerosol products, optical depths.
	D.	CIMEL Electronique CE318-3 sun-tracking photometer
		1.	Continuous coverage of the tower site 5/24 to 5/30
	    		(data collected as part of AERONET - station #59)
		2.	Direct spectral irradiance, indirect prin. plane, almuc.
			radiances
	    	3.	Optical depth, various aerosol products.
	E.	University of Arizona #4 automatic sunphotometer
		1.	Continuous coverage of the tower site 5/23 to 5/30
		2.	Direct spectral solar irradiance (10 channels)
	 	3.	Derived baseline optical depths.

VIII.	University of Montana
	A.	Ceptometer measurements (May 22, 1997)
		1.	taken along five 100m transects centered
			around the tower at the transitional site
				a.	transects N, S, E, W, SW of tower
		2.	measurements taken every 5m of the canopies
			a.	two measurements taken above canopy
			b.	four below canopy
				i.	two along transect
				ii.	two perpendicular to transect
	B.	Licor LAI-2000 measurements  (May 23, 1997)
		1.	taken along five 100m transects centered
			around the tower at the transitional site
				a.      transects N, S, E, W, SW of tower
		2.	measurements taken every 5m of the canopies
			a.	one measurement taken above canopy
			b.	five measurements taken below canopy
	C.	Digital Photos

IX.	OTHER DATA:
	A.	SPOT-2 data
			date:  May 25, 1997
			time:  17:52 UTC
			view angle:  2 degrees from nadir
	B.	Landsat TM data for May 25, 1997
	C.	GOES data every 30 minutes for the duration of the campaign
	D.	AVIRIS data from the ER-2 flight, taken on May 27, 1997