RSS-19 BOREAS Operations 1994

Objectives:
CASI Airborne Data Collection:

• Compact Airborne Spectrographic Imager (CASI) data collection for all five 1994 field campaigns - 36 flight days, 228.1 image collection hours.
• 4 CASI operating modes and 12 different mission plans to meet the scientific objectives of the RSS-19 group and collaborators -- 459 mission flights (i.e. image acquisitions over a specific target with a specific sensor configuration).

CASI Missions	Location	Duration	Number of Flights	Processing Status	Access Status
1. Multiview Canopy Bi-directional Reflectance	10 flux towers NSA & SSA	all FFCs & IFCs	57	0	BG
2. Canopy biochemistry - spectrometer mode	10 flux towers NSA & SSA	all FFCs & IFCs	37	0 1	BG
3a. Site Mapping @ 1675 m AGL - spatial mode	10 flux towers NSA & SSA	all FFCs & IFCs	48	0 1	BG BG,BO*
3b. Site Mapping @ 600 m AGL - spatial mode	10 flux towers NSA & SSA	all FFCs & IFCs	48	0 1	BG
4. Stem Mapping @ 150 or 300m AGL - CIR spatial mode	10 flux towers NSA & SSA	all FFCs & IFCs	28	0 1	BG
5. PAR and Spectral Albedo @ 150 m AGL- from up & down spectral irradiance	10 flux towers NSA & SSA	all FFCs & IFCs	53	N	-
6. Lake transects @ 1675 m	Wask & Candle Lake SSA	IFC 1, 2, & 3	10	0 1	BG
7. Beaver ponds	NSA	IFC 1, 2 & 3	9	0 1	BG
8. Auxiliary sites @ 1675 m AGL - spatial mode	NSA & SSA	all FFCs & IFCs	135	0 1	BG
9. ET transects @ 2.5 km AGL	SSA <-> NSA	all FFCs & IFCs	5	N	-
10. Snow Course lines	SSA & NSA • FFC-W	FFC-W	37	0 1	BG
11. Agriculture Lines	PA to SSA	FFC-T and IFC 1,2 & 3	4	0 1	BG
12. Atmospheric Correction Methodology study - multi-altitude & flights over characterized ground targets	SSA	IFC-2	40	0 1	BG

N - not yet processed
0 - quick-look gifs
1 - at-sensor radiance
2 - at-sensor reflectance
3 - surface reflectance
BO - BORIS
BG - ISTS (RSS-19 WWW site at URL: http://www.eol.ists.ca)

Field Data Collection Completed (analysis status as indicated):
Scientists associated with RSS-19 were at the BOREAS sites at all FFCs and IFCs. The field activities carried out are outlined in detail below.

A. Canopy Radiative Transfer input parameters:

1. canopy architecture
   • vectorization - to obtain the 3-D distribution of canopy elements and tree form i.e. branching structure, age, DBH, Ht, length of live crown:
     • where: YJP - 4 trees; OJP: 3 trees; OA: 2 trees + 1m² hazel
     • data status: data processed for YJP (4 trees) and OJP (3 trees), ready for submission to BORIS. Documentation in progress. (Contact R. Landry, CCRS)
   • site characterization - on detailed referenced grid (normally 50 x 60 m)
     • X-Y location of trees, DBH,, Ht, live crown Ht & radius in cardinal directions, dominance class, understory cover (in 10 m x 10m subplots)
     • where: - SSA: OA, OBS, OJP, YJP, 4 mixed OA/white spruce
       NSA: OA, OBS, OJP, YJP, YA aux site
     • data status: submitted to BORIS (Contact R. Fournier, TE-23)
2. branch BRF: bidirectional spectral reflectance using spectrometer & goniometer (JPL)
   • where: adjacent to sites OBS, OJP, OA
   • data status: data processing in progress (but data not yet reached level suitable for submission )
3. needle reflectance and transmittance (r,t) spectral properties, and shoot bi-directional reflectance
   • where: YJP, OJP, OBS tower sites at the NSA & samples from SSA at each IFC
   • data status: NSA needle r,t data processing completed, documentation in progress.
4. understory mean spectral reflectance: seasonal variation from all 5 campaigns
   • where: flux tower sites at both SSA and NSA
   • data status: analysis complete, submitted to BORIS
5. BRF of selected understory dominant components:
   • IFC-2:- where: SSA: OJP, OBS ( moss & lichen) - some vis/NIR; some vis to SWIR
   • IFC-3: - where: SSA & NSA (vis/NIR)
   • data status: data processing in progress (but data not yet reached level suitable for submission )
6. Tower-based canopy spectroradiometric signatures
   • FFC-W: where - SSA-OJP - (sunlit & shadowed) component signatures 400 to 850 nm
   • FFC-T & IFC-3: where - SSA & NSA - canopy BRF & endmember spectra
   • data status: FFC-W data analysis complete

B. Atmospheric Correction Methodology Evaluation:

1. BRF characterization of standard ground targets:
   • where airport tarmac & canvas panels
   • status: analysis in progress
2. optical depth data collection
   • IFC-2: - where - Prince Albert airport
   • data status: analysis complete and rationalized through interchanges with OD data by Markham RSS- & Wrigley
3. airborne spatial variability characterization
   • - airborne zenith sky, global irradiance Spectron data SSA (collaboration with Wathall
   • - Status: analysis in progress
4. Atmospheric Correction Model Validation Intercomparison
   • status: - internal report prepared on benchmark results for standard McClatchey
   • atmosphere for 10 altitudes, including typical C-130, Chieftain & ER-2 altitudes

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Last Updated: October 28, 1997