Ground Truth Report for Indiana HYDICE Flight Lines HYDICE Data Collected on August 7, 1997

Transcription

1 Ground Truth Report for Indiana HYDICE Flight Lines HYDICE Data Collected on August 7, General Description of Flight Lines 2. Ground Data Collected 3. Ground Reference Maps (revised May 18, 1998) Table of Contents 1. General Description of Flight Lines Three flight lines were identified in Indiana as representative of corn/soybeans agricultural backgrounds. One, termed the Davis Farm Line, is in the east central Indiana along state road 1 north of Farmland. This flight line includes the Davis Purdue Agricultural Research Center. The second, termed the Agronomy Farm Line, is west of West Lafayette and includes the Purdue Agronomy Research Center. The third, termed the Martell Forest Line, is also west of West Lafayette and includes the Purdue Martell Forest Station. All three of the flight lines are oriented north-south. See Figures 1-3 for the location of the flight lines on USGS quad sheets. The start and end coordinates (latitude and longitude) of the flight line centers are: Davis Farm (flight line is 5.1 miles long) Start: 40 13' 00" N End: 40 17' 30" N 85 09' 00" W 85 09' 00" W Agronomy Farm (flight line is 4.0 miles long) Start: 40 27' 30" N End: 40 31' 00" N 87 00' 00" W 87 00' 00" W Martell Forest (flight line is 5.1 miles long) Start: 40 22' 30" N End: 40 27' 00" N 87 02' 09" W 87 02' 09" W 1

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5 2. Ground Data Collected A. Spectral Data Terry Hemmer of SITAC came to Purdue on August 4th with an ASD spectrometer system and two ground reflectance reference panels to use to support the HYDICE flights. A site was prepared for the reference panels and a boom was made to be used on the top of a van to mount the spectrometer to allow efficient spectrometer data collection over the panels and 'short' scenes such as grass, soybeans, soil, etc. Arrangements were made for a boom truck to be available during the morning of August 7 to collect spectrometer data over 'tall' scenes such as corn canopies. Several hundred observations were collected over the following canopies/targets during August 7 and 8: August 7 (14:35-17:15 GMT) HYDICE black reflectance reference panel (21:15-21:25 GMT) HYDICE white reflectance reference panel (21:15-21:25 GMT) (21:25-21:30 GMT) August 8 (14:23-16:30 GMT) Alfalfa Wheat stubble Foxtail Mowed grass, Soil Gravel road All of the ASD spectral measurements were made in the Agronomy Farm flight line. A 30 cm square Spectralon reflectance standard and a 60 cm square painted Barium Sulfate reflectance standard were used to calibrate the measurements to reflectance. The Barium Sulfate reflectance standard was calibrated against the Spectralon standard. The Barium Sulfate reflectance standard was much easier to use with the boom truck data collection operation. Measurements were made of the reflectance standards every minutes. The reflectance measurements can be linearly interpolated between these time to have good estimates from the reflectance standard at the time that the canopy/target measurements were collected. 5

6 Boom Truck Data Collection. The ASD spectrometer system was around 9 meters above the ground when making measurements over the corn. The corn canopy was meters tall. The ASD system was 1 meter above the reflectance standards when making measurements of them. A platform with 2 lab jacks was used to level the reflectance standards. The bottom of the bucket of the boom was covered with a black cloth to reduce any reflection interactions between the bucket and the reflectance standards. The sky was clear during the data collection over the corn until 16:45 GMT. Cumulus continued to build until data collection was stopped by 17:30 because of the varying illumination conditions. The size of the field of view (5 degrees) of the ASD system was.8 meters over the corn canopy and 9 cm over the reflectance standards. Measurements were made at several locations within each corn plot to account for the variations within the canopy and the small size of the field of view. Van Data Collection. A wooden boom was mounted on top of a full size van to position the ASD system 2 meters above the ground and 1.9 meters away from the side of the van. This system was used to make the reflectance measurements over the HYDICE reflectance reference panels and all non-corn canopies/targets. A portable platform with two lab jacks was used to level and position the reflectance standards approximately 1 meter below the ASD system when making reflectance standard measurements. The size of the field of view (5 degrees) of the ASD system was 18 cm over the canopies/targets and 9 cm over the reflectance standards. Measurements were made at 5 to 10 locations over each canopy/target. B. Meteorological Measurements A chart of the total incidence for the day was recorded in the north end of the Martell Forest flight line. This chart is given in Figure 4. The plan was to obtain measurements to compute the optical depth during the time of the aircraft over flight. These measurements were not collected because they required steady illumination conditions before and after the flight which we did not have. There were many clouds passing over and near the sun near the time of the HYDICE over flight. 6

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8 3. Ground Reference Maps Larry Biehl, Paul Carter and Patrick Willis have collected information about the ground cover for the three flight lines between July 31 and August 18. The image on the left side of pages 9, 10, 31, 32, 33 and 39 represent a color IR composite of 3 channels of the 8/7/97 HYDICE data. The image on the right side of these pages are ground reference maps of the respective areas. Each ground reference map is color coded for general cover types and also include field outlines with labels. The pages that follow the image data contain more detailed descriptions of many of the fields. The varieties for at least some of the plots at the Purdue Agronomy Farm flight line can be made available if they are needed. Contact Larry Biehl ( ) if you need them. 8

9 A. Davis Farm flight line (north half) not labeled Grass Swine Lagoon Trees-Planted Wheat Stubble Woods G G G-1 G-1 J-1 I-1 J-1 I-1 I I J-3 9 J-3

10 Davis Farm flight line (south half). C K-1 B K-2 L A 10 not labeled Grass Swine Lagoon Trees-Planted Wheat Stubble Woods C K-1 B K-2 L A M1 10 M M2 M2 N N P P

11 Field Label A 5.7 Pasture See Photo (page 24) Field Label B-1 A.3001 No-Till Planting Date 4/29/97 Plant Count (per acre) 220,000 Field Label B-2 A.3301 No-Till Planting Date 4/29/97 Plant Count (per acre) 220,000 11

12 Field Label B-3 Terra 296 RR No-Till Planting Date 4/29/97 Plant Count (per acre) 220,000 Field Label B-4 Becks 302 RR No-Till Planting Date 4/29/97 Plant Count (per acre) 220,000 Field Label B-5 Pioneer 9333 No-Till Planting Date 4/29/97 Plant Count (per acre) 220,000 12

13 Field Label C-1 Dekalb Sp. Chisel, Disc-Drag, Disc-Drag Planting Date 4/28/97 Plant Count (per acre) 28,300 Field Label C-2 Asgrow Sp. Chisel, Disc-Drag, Disc-Drag Planting Date 4/28/97 Plant Count (per acre) 28,300 Field Label C-3 CountryMark Sp. Chisel, Disc-Drag, Disc-Drag Planting Date 4/28/97 Plant Count (per acre) 28,300 13

14 Field Label C-4 CountryMark Sp. Chisel, Disc-Drag, Disc-Drag Planting Date 4/28/97 Plant Count (per acre) 28,300 Field Label C-5 Asgrow Sp. Chisel, Disc-Drag, Disc-Drag Planting Date 4/28/97 Plant Count (per acre) 28,300 Field Label C-6 Dekalb Sp. Chisel, Disc-Drag, Disc-Drag Planting Date 4/28/97 Plant Count (per acre) 28,300 14

15 Field Label C-7 6 Rows Mixed Sp. Chisel, Disc-Drag, Disc-Drag Planting Date 4/28/97 Plant Count (per acre) 28,300 Field Label G-1 P.9393 Chisel, Disc -Drag Planting Date 4/29/97 Plant Count (per acre) Field Label G-2 P.9395 Chisel, Disc -Drag Planting Date 4/29/97 Plant Count (per acre) See Photo (page 25) 15

16 Field Label I-1 Alfalfa Border Amerigard 301 Planting Date 4/10/97 Plant Count (per acre) Field Label K-1 P3335 Chisel, Disc-Drag Planting Date 5/22/97 Plant Count (per acre) 28,300 Field Label K-2 P.9395 Chisel, Disc-Drag Planting Date 5/22/97 Plant Count (per acre) 16

17 Field Label L 9.6 Becks 388A-North, Roundup Ready-South NoTill Planting Date 6/25/97 Plant Count (per acre) Pasture Field Label M D.604 East-West Planting Date 4/24/97 Plant Count (per acre) 28,300 Field Label M Becks 5405 East-West NoTill Planting Date 4/23/97 Plant Count (per acre) 28,300 17

18 Field Label N 28.0 GH2573-South, GH2515-North East-West NoTill Planting Date 4/23/97 Plant Count (per acre) 32,000 Field Label P 31.9 P.3496 East-West Chisel, Disc, Disc Planting Date 4/28/97 Plant Count (per acre) 28,300 Field Label 1001 Drilled Planting Date Plant Count (per acre) See Photo (page 26) 18

19 Field Label 1002 Trees - Planted See Photo (page 27) Field Label 1004 Trees - Planted Planting Date Plant Count (per acre) Field Label 1005 East-West Planting Date Plant Count (per acre) See Photo (page 26) 19

20 Field Label 1006 Trees - Planted Planting Date Plant Count (per acre) Field Label Woods Planting Date Plant Count (per acre) See Photo (page 25). Field Label 1011 East-West Planting Date Plant Count (per acre) Plant Height 20

21 Field Label 1019 Planting Date Plant Count (per acre) Field Label 1020 East-West Planting Date Plant Count (per acre) Plant Height Field Label 1024 Drilled Planting Date Plant Count (per acre) Plant Height See Photo (page 28) 21

22 Field Label (part of total 51.0 acres) Woods From Woody Vegetation of Davis-Purdue Research Forest by George R. Parker and Jeffrey S. Ward, Proceedings of the Indiana Academy of Science, Volume 97, p , The Davis-Purdue Research Forest (DPRF) is a 20.6 ha old-growth deciduous forest dedicated to investigations of longterm forest dynamics. It is recognized as one of the finest old-growth stands remaining on the Tipton Till Plain and is a Registered National Natural Landmark. The current research is based on a vegetation inventory data base that includes all stems > 2 cm dbh and the species present in the 0-1.9cm dbh size class. These data are in a d-base file. There is currently no image of the inventory data. If one wishes this data base or data from it, one should contact Professor George R. Parker in the Purdue Forestry and Natural Resources Department, See Photos (page 24 and page 29) Field Label 1032 Pasture Planting Date Plant Count (per acre) Field Label 1037 Grass - Pasture Planting Date Plant Count (per acre) 22

23 Field Label 1045 East-West Planting Date Plant Count (per acre) See Photo (page 30) Field Label 1046 East-West Planting Date Plant Count (per acre) Field Label 1064 Woods Planting Date Plant Count (per acre) 23

24 Photo viewing southwest across Field A to Field 1030 (Woods) - Taken 8/18/97. 24

25 Photo viewing southeast across Field G-2 to Field 1010 (Woods) - Taken 8/18/97. 25

26 Photo viewing west across Field 1001 () on right and Field 1005 () on left - Taken 8/18/97. 26

27 Photo viewing south across Field 1002 (Planted Trees) - Taken 8/18/97. 27

28 Photo viewing southeast across Field Taken 8/18/97. 28

29 Photo viewing north into Field Taken 8/18/97. 29

30 Photo viewing south across Field Taken 8/18/97. 30

31 B. Agronomy Farm flight line (North 1/3) S Classes not labeled Alfalfa Clover-hay Foxtail (Weeds) Grass-Pasture Gravel lot Hay-cut Sorghum Weeds Wheat stubble Woods Black Panel White Panel S

32 32 Agronomy Farm flight line (Center 1/3) F-1 21F-2 21F-3 21F-4 21F E F-1 21F-2 21F-3 21F-4 21F E not labeled Alfalfa Clover-hay Foxtail (Weeds) Grass-Pasture Gravel lot Hay-cut Sorghum Weeds Wheat stubble Woods Black Panel White Panel Classes

33 Agronomy Farm flight line (South 1/3) Field Classes not labeled Alfalfa Clover-hay Foxtail (Weeds) Grass-Pasture Gravel lot Hay-cut Sorghum Weeds Wheat stubble Woods Black Panel White Panel

34 Agronomy Farm flight line (details of alfalfa plots, in north third of line) Agronomy Farm flight line (details of white and black panels, in north third of line)

35 Agronomy Farm flight line (details of field 75 in center third of line)

36 Agronomy Farm flight line (details of field 74 in center third of line)

37 Agronomy Farm flight line (details of field 73 in center third of line)

38 Agronomy Farm flight line (details of field 72 in center third of line)

39 C. Martell Forest flight line Classes not labeled White Pine Red Oak Deciduous Forest Grass Black Locust/Alder Black Walnut Red Pine

40 The following image on the left illustrates the ground coverage of the Martell Forest flight line. The line flown on August 7, 1997 contains many clouds as illustrated in the HYDICE image on the previous page. The image on the right is a general cover type map of the Martell Forest which is in the upper third of the image to the left. 40

41 Field Label 1001 White Pine Tree Height feet (estimated) Field Label 1002 White Pine Tree Height feet (estimated) Field Label 1003 Red Oak Tree Height feet (estimated) Field Label 1004 Black Locust & Alder Tree Height feet (estimated) Field Label 1005 Deciduous Forest (Oak, Hickory, Maple, Ash) Tree Height feet (estimated) Field Label 1006 Deciduous Forest (Oak, Hickory, Maple, Ash) Tree Height feet (estimated) Field Label Grass Plant Height 41

42 Field Label 1008 Black Walnut Tree Height feet (estimated) Field Label 1009 Red Pine Tree Height feet (estimated) 42