BOREAS RSS-03 Imagery and Snapshots from a Helicopter-Mounted Video Camera Summary The BOREAS RSS-03 team collected helicopter-based video coverage of forested sites acquired during BOREAS as well as single-frame "snapshots" processed to still images. Helicopter data used in this analysis were collected during all three 1994 IFCs (24-May to 16-Jun, 19-Jul to 10-Aug, and 30-Aug to 19-Sep), at numerous tower and auxiliary sites in both the NSA and the SSA. The VHS-camera observations correspond to other coincident helicopter measurements. The field of view of the camera is unknown. The video tapes are in both VHS and Beta format. The still images are stored in JPEG format. Note: An extensive helicopter log is available for each IFC. Environmental, technical, instrumental, and operational conditions are noted for each observation where applicable. It is strongly recommended that any researcher doing extended work with this data set obtain a copy of the helicopter log. Table of Contents 1) Data Set Overview 2) Investigator(s) 3) Theory of Measurements 4) Equipment 5) Data Acquisition Methods 6) Observations 7) Data Description 8) Data Organization 9) Data Manipulations 10) Errors 11) Notes 12) Application of the Data Set 13) Future Modifications and Plans 14) Software 15) Data Access 16) Output Products and Availability 17) References 18) Glossary of Terms 19) List of Acronyms 20) Document Information 1. Data Set Overview 1.1 Data Set Identification BOREAS RSS-03 Imagery and Snapshots from a Helicopter-Mounted Video Camera 1.2 Data Set Introduction The Remote Sensing Science (RSS)-03 helicopter-based video data set was compiled during the BOReal Ecosystem-Atmosphere Study (BOREAS) 1994 Intensive Field Campaigns (IFCs) with a color VHS video camera mounted on a helicopter platform. Video imagery was taken from the helicopter platform at BOREAS sites simultaneous with radiometric ground measurements and sunphotometer measurements from the same platform. The instrumentation used was designed and developed at the National Aeronautics and Space Administration (NASA) Goddard Space Flight Center (GSFC). The data were collected during the green-up, peak, and senescent stages of the growing season at numerous tower and auxiliary sites in both the Northern Study Area (NSA) and the Southern Study Area (SSA). The images were taken during the following periods: 31-May-1994 to 10-Jun-1994 (IFC-1) 21-Jul-1994 to 08-Aug-1994 (IFC-2) 06-Sep-1994 to 16-Sep-1994 (IFC-3) Multiple observations were captured from the video at sites where the cover changed significantly during the scan time; this was determined subjectively by the operator. 1.3 Objective/Purpose The study objective was to acquire multispectral, bidirectional reflectance, and surface temperature data of the study sites for assessments of spectral, spatial, and temporal variability, and the impacts of these variabilities on vegetation indices. A helicopter with a pointable, stabilized mount was used to carry a spectrometer (visible and near-infrared), spectroradiometer, infrared thermometer, video camera, and a sun tracking photometer. 1.4 Summary of Parameters Helicopter-based VHS video photographs of tower and auxiliary sites during all three IFCs in 1994. Video observations were captured while onboard devices were in operation over sites. 1.5 Discussion The video imagery was taken to capture visual conditions at the site during data collection that could then later be referred to as necessary when processing the data to aid in the quality assessment of the data. 1.6 Related Data Sets BOREAS RSS-01 PARABOLA SSA Surface Reflectance and Transmittance Data BOREAS RSS-02 Level-1b ASAS Imagery: At-sensor Radiance in BSQ Format BOREAS RSS-03 Reflectance Measured from a Helicopter-Mounted SE-590 BOREAS RSS-03 Reflectance Measured from a Helicopter-Mounted Barnes MMR BOREAS RSS-03 Atmospheric Measurements from a Helicopter-Mounted Sunphotometer BOREAS RSS-19 1994 Seasonal Understory Reflectance Data BOREAS RSS-20 POLDER Helicopter-Mounted Measurements of Surface BRDF 2. Investigator(s) 2.1 Investigator(s) Name and Title Dr. Charles L. Walthall, Physical Scientist 2.2 Title of Investigation Biophysical Significance of Spectral Vegetation Indices in the Boreal Forest 2.3 Contact Information Contact 1 ------------- Dr. Charles L. Walthall Physical Scientist USDA Agricultural Research Service Remote Sensing and Modeling Laboratory Beltsville, MD (301) 504-6074 (301) 504-5031 (fax) cwalthal@asrr.arsusda.gov Contact 2 ---------------- Sara Loechel Faculty Research Assistant Department of Geography University of Maryland Remote Sensing and Modeling Laboratory Beltsville, MD (301) 504-6823 (301) 504-5031 (fax) sloechel@asrr.arsusda.gov Contact 3 ------------- Jaime Nickeson Raytheon ITSS NASA GSFC Greenbelt, MD (301) 286-3373 (301) 286-0239 (fax) Jaime.Nickeson@gsfc.nasa.gov 3. Theory of Measurements The video imagery was taken to capture visual conditions at the site during data collection that could then later be referred to as necessary when processing the data to aid in the quality assessment. Two video cameras are used in the system. One video camera is bore-sighted with the main instruments on the pointable platform, and the other is next to the 70-mm photographic camera set to view nadir only. Video data are fed through a time and date video generator to superimpose month, day, year, and system clock time on the video tape frames. 4. Equipment 4.1 Sensor/Instrument Description Color Video System. The color video system consists of Charge-Coupled Device (CCD)-based color video cameras connected to a stereo-audio VCR. During IFC-1 and IFC-2, the VCR was a Beta format unit that had been used with the helicopter system since the mid-1980s. Beta format was originally chosen over VHS to take advantage of its higher video image resolution. Prior to IFC-3, an industrial- quality Super-VHS unit was installed and used for the rest of the experiment. The image is then displayed on a 14-inch color screen in the center instrument rack. Images from the nadir-only viewing camera are fed directly to a small color screen located on the pilot's instrument panel and then to a selector switch. The selector switch allows the back-seat instrument operators to view either the images from the bore-sighted video camera or the pilot's video camera. The bore-sighted camera provides feedback to the instrument operator when pointing the instrument package, and the nadir camera image is used by the pilot while positioning the helicopter during hovers. During IFC-1, a video camera with an operator-controlled electronic zoom and focus system with a was used. During IFC-2 and IFC-3, this lens was replaced with the same type of lens used with the nadir-looking camera. These lenses had a manual focus and a 20- to 80-mm zoom range, which was set at 30 to 35 mm. The stereo audio tracks of the VCR are used for an additional data record. One track is used to record an audible tone that is generated each time the instruments are triggered. The other audio track records the cabin intercom conversations among the aircrew. 4.1.1 Collection Environment In general, the helicopter was flown during relatively clear days when possible. Data collection was attempted during conditions of highest possible solar elevation. All observations were attempted from a nadir observation point and usually at 300 m above ground level (AGL). Exceptions are noted in the helicopter log. 4.1.2 Source/Platform A Bell UH-1H "Iroquois" helicopter, operated by the NASA's Wallops Flight Facility (WFF) was used as the airborne platform during BOREAS. This particular aircraft, call number N415, was built in 1965 and was acquired by WFF in 1993. Upon acquisition, the aircraft was slightly modified for use as a scientific platform. Helicopter N415 operates with standard or low-mount, rear-leaning skids. The engine is a Lycoming T53/L13, which provides 1,400 shaft HP with 1,290 transmission HP. The fuel capacity provides 2.0 hours flying time with a 20- minute fuel reserve under normal modes of operation. The addition of an auxiliary fuel tank in the port-side door crewman's position provided an additional 15 minutes of flight time during BOREAS given optimum flight conditions. The weight of the entire helicopter system with full instrumentation, full fuel, and crew members was 9,500 lbs. 4.1.3 Source/Platform Mission Objectives The video imagery was collected to capture site conditions at a fine spatial resolution during data collection that could then later be referred to as necessary when processing the data and to aid in the quality assessment of the data. 4.1.4 Key Variables Video imagery. 4.1.5 Principles of Operation The system is configured for multiple sensor data collection. The Modular Multiband Radiometer (MMR), Spectron Engineering spectroradiometer (SE-590), infrared thermometer, autotracking sunphotometer, and video sensor were the primary payload during BOREAS. The video camera was run continuously during data collection. 4.1.6 Sensor/Instrument Measurement Geometry Unknown. 4.1.7 Manufacturer of Sensor/Instrument Unknown. 4.2 Calibration Images are not calibrated. However, the images provide an overhead view of the tower and auxiliary sites with fine spatial resolution. 4.2.1 Specifications 4.2.1.1 Tolerance Not applicable. 4.2.2 Frequency of Calibration Not applicable. 4.2.3 Other Calibration Information Not applicable. 5. Data Acquisition Methods The NASA GSFC/WFF helicopter-based optical remote sensing system was deployed to acquire canopy multispectral data while hovering approximately 300 meters AGL (Walthall et al., 1996). A VHS color video camera was in operation during all data collection flights. The field of view (FOV) of the lens is unknown. Images are not calibrated. However, the images provide an overhead view of the tower and auxiliary sites with fine spatial resolution. A visual record of conditions at the time of the spectral data collection can assist in analysis. The video snapshots were generated on a Power Macintosh PC 8500/220 using a VHS video player and Avid VideoShop 3.0.2. The images were then converted from PICT format to JPEG for universal accessibility. 6. Observations 6.1 Data Notes An extensive helicopter log is available. Environmental, technical, instrumental, and operator conditions are noted for each observation where applicable. 6.2 Field Notes See helicopter log. 7. Data Description 7.1 Spatial Characteristics 7.1.1 Spatial Coverage The helicopter visited all of the NSA and SSA tower and category-1 auxiliary sites. Each site listed below was observed by this instrument at least once during the 1994 campaign at BOREAS. The coordinates in the table are based on the North American Datum of 1983 (NAD83). -------------------------------------------------------------------------- Site Id Operat'l Longitude Latitude UTM UTM UTM Grid ID Easting Northing Zone -------------------------------------------------------------------------- Flux Tower Sites SSA: SSA-FEN F0L9T 104.61798° W 53.80206° N 525159.8 5961566.6 13 SSA-OBS G8I4T 105.11779° W 53.98717° N 492276.5 5982100.5 13 SSA-OJP G2L3T 104.69203° W 53.91634° N 520227.7 5974257.5 13 SSA-YJP F8L6T 104.64529° W 53.87581° N 523320.2 5969762.5 13 SSA-9OA C3B7T 106.19779° W 53.62889° N 420790.5 5942899.9 13 SSA-9YA D0H4T 105.32314° W 53.65601° N 478644.1 5945298.9 13 -------------------------------------------------------------------------- NSA: NSA-OBS T3R8T 98.48139° W 55.88007° N 532444.5 6192853.4 14 NSA-OJP T7Q8T 98.62396° W 55.92842° N 523496.2 6198176.3 14 NSA-YJP T8S9T 98.28706° W 55.89575° N 544583.9 6194706.9 14 NSA-BVP T4U6T 98.02747° W 55.84225° N 560900.6 6188950.7 14 NSA-FEN T7S1T 98.42072° W 55.91481° N 536207.9 6196749.6 14 -------------------------------------------------------------------------- Auxiliary Sites SSA: SSA-9BS D0H6S 105.29534° W 53.64877° N 480508.7 5944263.4 13 SSA-9BS G2I4S 105.13964° W 53.93021° N 490831.4 5975766.3 13 SSA-9BS G2L7S 104.63785° W 53.90349° N 523793.6 5972844.3 13 SSA-9BS G6K8S 104.75900° W 53.94446° N 515847.9 5977146.9 13 SSA-9BS G9I4S 105.11805° W 53.99877° N 492291.2 5983169.1 13 SSA-9JP F5I6P 105.11175° W 53.86608° N 492651.3 5968627.1 13 SSA-9JP F7J0P 105.05115° W 53.88336° N 496667.0 5970323.3 13 SSA-9JP F7J1P 105.03226° W 53.88211° N 497879.4 5970405.6 13 SSA-9JP G1K9P 104.74812° W 53.90880° N 516546.7 5973404.5 13 SSA-9JP G4K8P 104.76401° W 53.91883° N 515499.1 5974516.6 13 SSA-9JP G7K8P 104.77148° W 53.95882° N 514994.2 5978963.8 13 SSA-9JP G8L6P 104.63755° W 53.96558° N 523778.0 5979752.7 13 SSA-9JP G9L0P 104.73779° W 53.97576° N 517197.7 5980856.0 13 SSA-9JP I2I8P 105.05107° W 54.11181° N 496661.4 5995963.1 13 SSA-ASP B9B7A 106.18693° W 53.59098° N 421469.8 5938447.2 13 SSA-ASP D6H4A 105.31546° W 53.70828° N 479177.5 5951112.1 13 SSA-ASP D6L9A 104.63880° W 53.66879° N 523864.0 5946733.2 13 SSA-ASP D9G4A 105.46929° W 53.74019° N 469047.1 5954718.4 13 SSA-MIX D9I1M 105.20643° W 53.72540° N 486379.7 5952989.7 13 SSA-MIX F1N0M 104.53300° W 53.80594° N 530753.7 5962031.8 13 SSA-MIX G4I3M 105.14246° W 53.93750° N 490677.3 5976354.9 13 SSA-CLR FRSHCL 104.69194° W 53.91639° N 520205.2 5974269.4 13 -------------------------------------------------------------------------- NSA: NSA-9BS S8W0S 97.84024° W 55.76824° N 572761.9 6180894.9 14 NSA-9BS T0P7S 98.82345° W 55.88371° N 511043.9 6193151.1 14 NSA-9BS T0P8S 98.80225° W 55.88351° N 512370.1 6193132.0 14 NSA-9BS T0W1S 97.80937° W 55.78239° N 574671.7 6182502.0 14 NSA-9BS T3U9S 97.98339° W 55.83083° N 563679.1 6187719.2 14 NSA-9BS T4U8S 97.99325° W 55.83913° N 563048.2 6188633.4 14 NSA-9BS T4U9S 97.98364° W 55.83455° N 563657.5 6188132.8 14 NSA-9BS T5Q7S 98.64022° W 55.91610° N 522487.2 6196800.5 14 NSA-9BS T6R5S 98.51865° W 55.90802° N 530092.0 6195947.0 14 NSA-9BS T6T6S 98.18658° W 55.87968° N 550887.9 6192987.9 14 NSA-9BS T7R9S 98.44877° W 55.91506° N 534454.5 6196763.6 14 NSA-9BS T7T3S 98.22621° W 55.89358° N 548391.8 6194505.6 14 NSA-9BS T8S4S 98.37111° W 55.91689° N 539306.4 6197008.6 14 NSA-9BS U5W5S 97.70986° W 55.90610° N 580655.5 6196380.8 14 NSA-9BS U6W5S 97.70281° W 55.91021° N 581087.8 6196846.5 14 NSA-9JP 99O9P 99.03952° W 55.88173° N 497527.8 6192917.5 14 NSA-9JP Q3V3P 98.02473° W 55.55712° N 561517.9 6157222.2 14 NSA-9JP T7S9P 98.30037° W 55.89486° N 543752.4 6194599.1 14 NSA-9JP T8Q9P 98.61050° W 55.93219° N 524334.5 6198601.4 14 NSA-9JP T8S9P 98.28385° W 55.90456° N 544774.3 6195688.9 14 NSA-9JP T8T1P 98.26269° W 55.90539° N 546096.3 6195795.3 14 NSA-9JP T9Q8P 98.59568° W 55.93737° N 525257.1 6199183.2 14 NSA-9OA T2Q6A 98.67479° W 55.88691° N 520342.0 6193540.7 14 NSA-ASP P7V1A 98.07478° W 55.50253° N 558442.1 6151103.7 14 NSA-ASP Q3V2A 98.02635° W 55.56227° N 561407.9 6157793.5 14 NSA-ASP R8V8A 97.89260° W 55.67779° N 569638.4 6170774.8 14 NSA-ASP S9P3A 98.87621° W 55.88576° N 507743.3 6193371.6 14 NSA-ASP T4U5A 98.04329° W 55.84757° N 559901.6 6189528.2 14 NSA-ASP T8S4A 98.37041° W 55.91856° N 539348.3 6197194.6 14 NSA-ASP V5X7A 97.48565° W 55.97396° N 594506.1 6204216.6 14 NSA-ASP W0Y5A 97.33550° W 56.00339° N 603796.6 6207706.6 14 NSA-MIX Q1V2M 98.03769° W 55.54568° N 560718.3 6155937.3 14 NSA-MIX T0P5M 98.85662° W 55.88911° N 508967.7 6193747.3 14 -------------------------------------------------------------------------- 7.1.2 Spatial Coverage Map None given. 7.1.3 Spatial Resolution The spatial resolution is somewhat variable based on the altitude of the helicopter and the height of the trees and ground cover. 7.1.4 Projection None given. 7.1.5 Grid Description Not applicable. 7.2 Temporal Characteristics 7.2.1 Temporal Coverage Observations were made during all three BOREAS 1994 IFCs, which occurred during the following periods: IFC-1 24-May to 16-Jun IFC-2 19-Jul to 10-Aug IFC-3 30-Aug to 19-Sep 7.2.2 Temporal Coverage Map Observations were made at several sites on the following dates: ----------------------------- Date Study Area ----------------------------- 31-May-1994 SSA 01-Jun-1994 SSA 04-Jun-1994 SSA 06-Jun-1994 SSA 07-Jun-1994 SSA 08-Jun-1994 NSA 10-Jun-1994 NSA 21-Jul-1994 NSA 22-Jul-1994 SSA 23-Jul-1994 SSA 24-Jul-1994 SSA 25-Jul-1994 SSA 28-Jul-1994 SSA 04-Aug-1994 NSA 08-Aug-1994 NSA 06-Sep-1994 NSA 08-Sep-1994 NSA 09-Sep-1994 NSA 13-Sep-1994 NSA 15-Sep-1994 SSA 16-Sep-1994 SSA In addition to the still images from each IFC, videotapes exist for the dates or time periods indicated below: Video Tape Description -------------------------------------------------------------------------------- RSS-03,HELICOPTER VIDEO, GPS, IFC-1, OA AND YA, 25-MAY-1994 AND 27-MAY-1994 RSS-03,HELICOPTER VIDEO, GPS, IFC-1, OA AND YA, 25-MAY-994 AND 27-MAY-1994 RSS-03,HELICOPTER VIDEO, HELO A & B, IFC-1, 31-MAY-1994 RSS-03,HELICOPTER VIDEO, HELO, IFC-1, 01-JUN-1994 RSS-03,HELICOPTER VIDEO HELO, IFC-1, 04-JUN-994 RSS-03,HELICOPTER VIDEO, HELO, IFC-1, 06-JUN-1994 RSS-03,HELICOPTER VIDEO, HELO, IFC-1, NSA, 07-JUN-1994 RSS-03,HELICOPTER VIDEO, HELO, IFC-1, NSA, 08-JUN-1994 RSS-03,HELICOPTER VIDEO, HELO, OPTICAL 22-JUL-1994 RSS-03,HELICOPTER VIDEO, HELO, 23-JUL-1994 RSS-03,HELICOPTER VIDEO, HELO A, TRANSECT B, 24-JUL-1994 RSS-03,HELICOPTER VIDEO HELO, 25-JUL-1994 RSS-03,HELICOPTER VIDEO HELO, B HELO, 25-JUL-1994 RSS-03,HELICOPTER VIDEO, HELO, A & B 04-AUG-1994 RSS-03,HELICOPTER VIDEO, C HELO, 04-AUG-1994 RSS-03,HELICOPTER VIDEO, HELO A 08-AUG-1994 7.2.3 Temporal Resolution Measurements were collected as conditions permitted during each IFC. Each site was visited as often as possible during each IFC, with priority given to tower flux sites and category 1 auxiliary sites. Helicopter flight time was limited to approximately 2 hours by fuel constraints. As many sites as possible were visited during each flight. 7.3 Data Characteristics 7.3.1 Parameter/Variable Video tapes and still frame imagery. The parameters contained in the video tape inventory file on the CD-ROM are: Column Name ------------------------------ MEDIA_ID MEDIA_DESCR 7.3.2 Variable Description/Definition The still frames were digitized from the video tape as representative views of the sites. The video tapes are Beta and VHS format containing the collected video imagery. The descriptions of the parameters contained in the video tape inventory file on the CD-ROM are: Column Name Description ------------------------------ ------------------------------------------------ MEDIA_ID The BORIS identifier assigned to the data/ information containing media. The form of the MEDIA_ID varies with each data set. MEDIA_DESCR The description of the information holding media. An example would be: RSS-03 Helicopter video tapes. IFC-1 OA and YA 25-MAY-1994 and 27-MAY-1994 (VHS and BETA formats) 7.3.3 Unit of Measurement There are no measurement units associated with the video tape or still frame imagery. The measurement units for the parameters contained in the video tape inventory file on the CD-ROM are: Column Name Units ------------------------------ ------------------------------------------------ MEDIA_ID [none] MEDIA_DESCR [none] 7.3.4 Data Source The images were gathered with a color, VHS video recorder. The source of the parameter values contained in the video tape inventory file on the CD-ROM are: Column Name Data Source ------------------------------ ------------------------------------------------ MEDIA_ID [Assigned by BORIS] MEDIA_DESCR [Provided by RSS-03] 7.3.5 Data Range The following table gives information about the parameter values found in the video tape inventory file on the CD-ROM. Minimum Maximum Missng Unrel Below Data Data Data Data Data Detect Not Column Name Value Value Value Value Limit Cllctd -------------------------------------------------------------------------------- MEDIA_ID N/A N/A None None None None MEDIA_DESCR N/A N/A None None None None -------------------------------------------------------------------------------- Minimum Data Value -- The minimum value found in the column. Maximum Data Value -- The maximum value found in the column. Missng Data Value -- The value that indicates missing data. This is used to indicate that an attempt was made to determine the parameter value, but the attempt was unsuccessful. Unrel Data Value -- The value that indicates unreliable data. This is used to indicate an attempt was made to determine the parameter value, but the value was deemed to be unreliable by the analysis personnel. Below Detect Limit -- The value that indicates parameter values below the instruments detection limits. This is used to indicate that an attempt was made to determine the parameter value, but the analysis personnel determined that the parameter value was below the detection limit of the instrumentation. Data Not Cllctd -- This value indicates that no attempt was made to determine the parameter value. This usually indicates that BORIS combined several similar but not identical data sets into the same data base table but this particular science team did not measure that parameter. Blank -- Indicates that blank spaces are used to denote that type of value. N/A -- Indicates that the value is not applicable to the respective column. None -- Indicates that no values of that sort were found in the column. -------------------------------------------------------------------------------- 7.4 Sample Data Record The following are wrapped versions of data records from the video tape inventory file on the CD-ROM. MEDIA_ID,MEDIA_DESCR 'VIDHEL001-0','RSS-03 Helicopter video tapes. 25-JUL-1994 (VHS and BETA formats).' 'VIDHEL002-0','RSS-03 Helocopter video tapes. IFC-1 04-JUN-1994 (VHS and BETA formats).' 8. Data Organization 8.1 Data Granularity The smallest unit of information for the video tapes is one video tape. The smallest unit of data for the still images is a single image. 8.2 Data Format(s) The video tapes are stored in Beta and/or VHS format. The still images are stored in JPEG image files that are named with the date when and site where the imagery was acquired. The Compact Disk-Read-Only Memory (CD-ROM) file of video tape inventory information contains American Standard Code for Information Interchange (ASCII) numerical and character fields of varying length separated by commas. The character fields are enclosed with single apostrophe marks. There are no spaces between the fields. Each data file on the CD-ROM has four header lines of Hyper-Text Markup Language (HTML) code at the top. When viewed with a Web browser, this code displays header information (data set title, location, date, acknowledgments, etc.) and a series of HTML links to associated data files and related data sets. Line 5 of each data file is a list of the column names, and line 6 and following lines contain the actual data. 9. Data Manipulations 9.1 Formulae None given. 9.1.1 Derivation Techniques and Algorithms None given. 9.2 Data Processing Sequence None given. 9.2.1 Processing Steps None given. 9.2.2 Processing Changes None given. 9.3 Calculations None given. 9.3.1 Special Corrections/Adjustments None given. 9.3.2 Calculated Variables None given. 9.4 Graphs and Plots None given. 10. Errors 10.1 Sources of Error None given. 10.2 Quality Assessment Visual quality assessment during data collection. See reference list and helicopter logs. BOREAS Information System (BORIS) staff viewed some of the JPEG imagery to verify data format. Some of the video tape was viewed in the process of copying from Beta to VHS format. 10.2.1 Data Validation by Source None given. 10.2.2 Confidence Level/Accuracy Judgment None given. 10.2.3 Measurement Error for Parameters None given. 10.2.4 Additional Quality Assessments None given. 10.2.5 Data Verification by Data Center See Section 10.2. 11. Notes 11.1 Limitations of the Data None given. 11.2 Known Problems with the Data None given. 11.3 Usage Guidance The video imagery was taken to capture visual conditions at the site during data collection that can be referred to as necessary when using any of the helicopter data sets. 11.4 Other Relevant Information None given. 12. Application of the Data Set See Section 11.3. 13. Future Modifications and Plans None. 14. Software 14.1 Software Description Avid VideoShop 3.0.2 14.2 Software Access The software described is publicly available. 15. Data Access 15.1 Contact for Data Center/Data Access Information These BOREAS data are available from the Earth Observing System Data and Information System (EOS-DIS) Oak Ridge National Laboratory (ORNL) Distributed Active Archive Center (DAAC). The BOREAS contact at ORNL is: ORNL DAAC User Services Oak Ridge National Laboratory Oak Ridge, TN (865) 241-3952 ornldaac@ornl.gov ornl@eos.nasa.gov 15.2 Procedures for Obtaining Data BOREAS data may be obtained through the ORNL DAAC World Wide Web site at http://www-eosdis.ornl.gov/ or users may place requests for data by telephone, electronic mail, or fax. 15.3 Output Products and Availability Requested data can be provided electronically on the ORNL DAAC's anonymous FTP site or on various media including, CD-ROMs, 8-MM tapes, or diskettes. The complete set of BOREAS data CD-ROMs, entitled "Collected Data of the Boreal Ecosystem-Atmosphere Study", edited by Newcomer, J., et al., NASA, 1999, are also available. 16. Output Products and Availability 16.1 Tape Products None. 16.2 Film Products The video tapes are in both VHS and Beta format. 16.3 Other Products The still imagery is provided as files in JPEG format. These data are available on the BOREAS CD-ROM series. 17. References 17.1 Platform/Sensor/Instrument/Data Processing Documentation Walthall, C., D.L. Williams, B. Markham, J. Kalshoven, and R. Nelson. 1996. Development and present configuration of the NASA GSFC/WFF helicopter-based remote sensing system. International Geosciences and Remote Sensing Symposium (IGARSS) Spring 1996, Lincoln, Nebraska. 17.2 Journal Articles and Study Reports Newcomer, J., D. Landis, S. Conrad, S. Curd, K. Huemmrich, D. Knapp, A. Morrell, J. Nickeson, A. Papagno, D. Rinker, R. Strub, T. Twine, F. Hall, and P. Sellers, eds. 2000. Collected Data of The Boreal Ecosystem-Atmosphere Study. NASA. CD- ROM. Sellers, P. and F. Hall. 1994. Boreal Ecosystem-Atmosphere Study: Experiment Plan. Version 1994-3.0, NASA BOREAS Report (EXPLAN 94). Sellers, P. and F. Hall. 1996. Boreal Ecosystem-Atmosphere Study: Experiment Plan. Version 1996-2.0, NASA BOREAS Report (EXPLAN 96). Sellers, P., F. Hall, and K.F. Huemmrich. 1996. Boreal Ecosystem-Atmosphere Study: 1994 Operations. NASA BOREAS Report (OPS DOC 94). Sellers, P., F. Hall, and K.F. Huemmrich. 1997. Boreal Ecosystem-Atmosphere Study: 1996 Operations. NASA BOREAS Report (OPS DOC 96). Sellers, P., F. Hall, H. Margolis, B. Kelly, D. Baldocchi, G. den Hartog, J. Cihlar, M.G. Ryan, B. Goodison, P. Crill, K.J. Ranson, D. Lettenmaier, and D.E. Wickland. 1995. The boreal ecosystem-atmosphere study (BOREAS): an overview and early results from the 1994 field year. Bulletin of the American Meteorological Society. 76(9):1549-1577. Sellers, P.J., F.G. Hall, R.D. Kelly, A. Black, D. Baldocchi, J. Berry, M. Ryan, K.J. Ranson, P.M. Crill, D.P. Lettenmaier, H. Margolis, J. Cihlar, J. Newcomer, D. Fitzjarrald, P.G. Jarvis, S.T. Gower, D. Halliwell, D. Williams, B. Goodison, D.E. Wickland, and F.E. Guertin. 1997. BOREAS in 1997: Experiment Overview, Scientific Results and Future Directions. Journal of Geophysical Research 102(D24): 28,731-28,770. 17.3 Archive/DBMS Usage Documentation None. 18. Glossary of Terms None. 19. List of Acronyms A/D - Analog-to-digital AGL - Above Ground Level ASCII - American Standard Code for Information Interchange BOREAS - BOReal Ecosystem-Atmosphere Study BORIS - BOREAS Information System CCD - Charge-Coupled Device CD-ROM - Compact Disk-Read-Only Memory DAAC - Distributed Active Archive Center FOV - Field of View GIS - Geographic Information System GSFC - Goddard Space Flight Center HTML - HyperText Markup Language IFC - Intensive Field Campaign MMR - Modular Multiband Radiometer NAD83 - North American Datum of 1983 NASA - National Aeronautics and Space Administration NSA - Northern Study Area OA - Old Aspen OBS - Old Black Spruce OJP - Old Jack Pine ORNL - Oak Ridge National Laboratory PANP - Prince Albert National Park RSS - Remote Sensing Science SE-590 - Spectron Engineering spectroradiometer (SE590) SSA - Southern Study Area TM - Thematic Mapper URL - Uniform Resource Locator UTM - Universal Transverse Mercator WFF - Wallops Flight Facility YA - Young Aspen YJP - Young Jack Pine 20. Document Information 20.1 Document Revision Date Written: 30-Jun-1997 Last Updated: 31-Aug-1999 20.2 Document Review Dates BORIS Review: 03-Dec-1998 Science Review: 20.3 Document ID 20.4 Citation When using these data, please contact the individuals listed in Section 2.3 as well as citing relevant papers in Section 17.2. If using data from the BOREAS CD-ROM series, also reference the data as: Walthall, C.L., "Biophysical Significance of Spectral Vegetation Indices in the Boreal Forest." In Collected Data of The Boreal Ecosystem-Atmosphere Study. Eds. J. Newcomer, D. Landis, S. Conrad, S. Curd, K. Huemmrich, D. Knapp, A. Morrell, J. Nickeson, A. Papagno, D. Rinker, R. Strub, T. Twine, F. Hall, and P. Sellers. CD-ROM. NASA, 2000. Also, cite the BOREAS CD-ROM set as: Newcomer, J., D. Landis, S. Conrad, S. Curd, K. Huemmrich, D. Knapp, A. Morrell, J. Nickeson, A. Papagno, D. Rinker, R. Strub, T. Twine, F. Hall, and P. Sellers, eds. Collected Data of The Boreal Ecosystem-Atmosphere Study. NASA. CD-ROM. NASA, 2000. 20.5 Document Curator 20.6 Document URL Keywords: Video tapes Video images RSS03_Helo_Video_Imgs.doc 09/30/99