The program, LACVIN, calculates vegetative indexes numbers on limited area coverage/high resolution picture transmission data for selected IJ grid sections. The IJ grid sections were previously extracted from the full resolution data tapes and stored on disk files

Obrien, S. O.

English

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AgRISTARS
"Made rabble under NASA sponsorship
in the interest of early and wide dis-
semination of Earth Resources Survey
Program information wW without liability
for any use made thereof."
Early Warning and Crop
Condition Assessment
8 -1a oa73
EW-LO-00703
JSC-16375
to 0 1'. i^YC;fI
A Joint Program for
Agriculture and
Resources Inventory
Surveys Through
Aerospace
Remote Sensing
September 1980
LIMITED AREA COVERAGE/HIGH RESOLUTION PICTURE
TRANSMISSION (LAC/HRPT) DATA VEGETATIVE INDEX
CALCULATION PROCESSOR USER'S MANUAL
S. 0. O'Brien
(E81-1JJ73) LIMITED AREA CUVERAGE/HIGH
hESOLUTION PICTURE i&ANSAISSION (LAC/HIcPT)
DATA VEGETATIVE INDEX CALCULATION PROCESSOR
USEH'S MANUAL (Lockheed Engineering anti
Management) 14 p hC A02/MF AJ1	 CSCL 06F G3/43
Nf;1- 1 .i4,'.y
Uncids
0u073
Lockheed Engineering and Management Services Company, Inc.
Houston, Texas 77058
10EpT or CO
4v 4.
Q^W4
S^4rES of
Lyndon B. Johnson
 Space Center
Houston, Texas 77058
1. Report No.
JSC-16375; EW-LO-00703
2. Government Accession No. 3.	 Recipient's Catalog No.
4. Title and Subtitle 5. Report ate
Limited Area Coverage/High Resolution Picture Transmission August
	
1980
(LAC/HRPT) Data
Vegetative Index Calculation Processor User's Manual
G. Performing Organization Code
7. Authorfs) 8. Performing Organization Report No.
S.
	 0.	 O'Brien
Lockheed Engineering and Management Services Company, Inc. LEMSCO-15327
10. Work Unit No.
9. Par fat 	 m	 anming Organization Nae 	 d Addres
Lockheed Engineering and Management Services Company, Inc. --^11. Contract or Grant No.1830 NASA Road 1
Houston, Texas 77058 NAS 9-15800
13. Type of Report and Period Covered
Procedures
12. Sponsoring Agency Name and Address
National Aeronautics and Space Administration
14. sponsoring Agency coo.Lyndon B. Johnson Space Center
Houston, Texas 77058
15. Supplementary Notes
18, Ab oiect
The program, LACVIN, calculates Vegetative Index Numbers on Limited Area Coverage/High
Resolution Picture Transmission 	 (LAC/HRPT)	 Data for selected IJ grid sections.	 The
IJ grid sections have previously been extracted from the full	 resolution data tapes
and stored on disk	 files.
i
i
17. Key Words (Suggwild by Author(s)) 18. Oistribution Statement
Vegetative Index Numbers, VIN
IJ grid
User's Manual
1
19. Security CJasif. (of this report) 20. Security Cassel. (of this pagei 21.	 NO. of Pegas 22.	 Price'
Unclassified Unclassified 14
'For We by the National Technical Information Service, Springfield, Virginia 22181
AC Form 1424 (Raw Nov 75)
	 NASA — JSC
EW-LO-00703
JSC-16375
LIMITED AREA COVERAGE / HIGH RESOLUTION
PICTURE TRANSMISSION ( LAC/HRPT) DATA
VEGETATIVE INDEX CALCULATION
PROCESSOR USER'S MANUAL
Job Order 73-368
PREPARED BY
S. 0. O'Brien
APPROVED BY
. R. uney, rroJ t Manager
rly ;Darning Prgaect Office
t^4	 NAJIA A.-
J./E. Wainwright, Manager U
Develo
	 nt and Evaluation Department
LOCKHEED ENGINEERING AND MANAGEMENT SERVICES COMPANY, INC.
Under Contract NAS 9-15800
For
Earth Observations Division
Space and Life Sciences Directorate
NATIONAL AERONAUTICS AND SPACE ADMINISTRATION
LYNDON B. JOHNSON SPACE CENTER
HOUSTON, TEXAS
August 1980	 LEMSCO-15327
i i i
CONTENTS
Section Page
1. GENERAL	 INFORMATION	 .	 .	 .	 .	 .	 .	 .	 .	 .	 .	 .	 .	 .	 .	 .	 .	 .	 .	 .	 .	 .	 .	 . .	 .1-1
1.1	 SYSTEM	 NAME	 .	 .	 .	 .	 .	 .	 .	 .	 .	 .	 .	 .	 .	 .	 .	 .	 .	 .	 .	 .	 .	 .	 .	 . .	 .1-1
1.2
	 PRIMARY	 USER	 .	 .	 .	 .	 .	 .	 .	 .	 .	 .	 .	 .	 .	 .	 .	 .	 .	 .	 .	 .	 .	 .	 .	 . .	 .1-1
1.3
	 DEVELOPING ORGANIZATION	 .	 .	 .	 .	 .	 .	 .	 .	 .	 .	 .	 .	 .	 .	 .	 .	 .	 . .	 .1-1
1.4	 COMPUTER	 FACILITY	 .	 .	 .	 .	 .	 .	 .	 .	 .	 .	 .	 .	 .	 .	 .	 .	 .	 .	 .	 .	 . .	 .1-1
1.5	 REFERENCES
	
.	 .	 .	 .	 .	 .	 .	 .	 .	 .	 .	 .	 .	 .	 .	 .	 .	 .	 .	 .	 .	 .	 .	 . .	 .1-1
1.5.1
	 NOAA POLAR ORBITER DATA (TIROS N) USERS GUIDE PRELIMINARY
VERSION--JANUARY	 1979	 .	 .	 .	 .	 .	 .	 .	 .	 .	 .	 .	 .	 .	 .	 .	 .	 .	 . .	 .l-1
1.5.2	 DEC-II-LMFUA-B-D FORTRAN	 IV USERS GUIDE	 .	 .	 .	 .	 .	 .	 .	 .	 . .	 .1-1
2. DESCRIPTION	 .	 .	 .	 .	 .	 .	 .	 .	 .	 .	 .	 .	 .	 .	 .	 .	 .	 .	 .	 .	 .	 .	 .	 .	 .	 .	 . .	 .2-1
2.1	 PURPOSE
	
.	 .	 .	 .	 .	 .	 .	 .	 .	 .	 .	 .	 .	 .	 .	 .	 .	 .	 .	 .	 .	 .	 .	 .	 .	 . .	 .2-1
2.2	 USAGE	 .	 .	 .	 .	 .	 .	 .	 .	 .	 .	 .	 .	 .	 .	 .	 .	 .	 .	 .	 .	 .	 .	 .	 .	 .	 .	 . .	 .2-1
3. INPUT	 .	 .	 .	 .	 .	 .	 .	 .	 .	 .	 .	 .	 .	 .	 .	 .	 .	 .	 .	 .	 .	 .	 .	 .	 .	 .	 .	 .	 .	 . .	 .3-1
3.1	 TYPES
	 OF	 INPUT	 .	 .	 .	 .	 .	 .	 .	 .	 .	 .	 .	 .	 .	 .	 .	 .	 .	 .	 .	 .	 .	 .	 . .	 .3-1
3.1.1	 TAPE
	
.	 .	 .	 .	 .	 .	 .	 .	 .	 .	 .	 .	 .	 .	 .	 .	 .	 .	 .	 .	 .	 .	 .	 .	 .	 .	 . .	 .3-1
3.1.2	 DISK	 .	 .	 .	 .	 .	 .	 .	 .	 .	 .	 .	 .	 .	 .	 .	 .	 .	 .	 .	 .	 .	 .	 .	 .	 .	 .	 . .	 .3-1
3.1.3	 CARDS
	 .	 .	 .	 .	 .	 .	 .	 :	 .	 .	 .	 .	 .	 .	 .	 .	 .	 .	 .	 .	 .	 .	 .	 .	 .	 . .	 .3-2
4. PROCESSING	 .	 .	 .	 .	 .	 .	 .	 .	 .	 .	 .	 .	 .	 .	 .	 .	 .	 .	 .	 .	 .	 .	 .	 .	 .	 .	 . .	 .4-1
4.1	 INTERACTIVE	 .	 .	 .	 .	 .	 .	 .	 .	 .	 .	 .	 .	 .	 .	 .	 .	 .	 .	 .	 .	 .	 .	 .	 . .	 .4-1
4.2	 BATCH	 .	 .	 .	 .	 .	 .	 .	 .	 .	 .	 .	 .	 .	 .	 .	 .	 .	 .	 .	 .	 .	 .	 .	 .	 .	 .	 . .	 .4-1
4.3
	 PROCESSING	 FLOW	 .	 .	 .	 .	 .	 .	 .	 .	 .	 .	 .	 .	 .	 .	 .	 .	 .	 .	 .	 .	 .	 . .	 .4-2
5. OUTPUT .	 .	 .	 .	 .	 .	 .	 .	 .	 .	 .	 .	 .	 .	 .	 .	 .	 .	 .	 .	 .	 .	 .	 .	 .	 .	 .	 .	 .	 . .	 . 5-1
5.1	 TYPES
	 OF	 OUTPUT	 .	 .	 .	 .	 .	 .	 .	 .	 .	 .	 .	 .	 .	 .	 .	 .	 .	 .	 .	 .	 .	 . .	 .5-1
5.1.1	 TAPE
	
.	 .	 .	 .	 .	 .	 .	 .	 .	 .	 .	 .	 .	 .	 .	 .	 .	 .	 .	 .	 .	 .	 .	 .	 .	 .	 . .	 .5-1
Section Page
5.1.2	 DISK	 .	 .	 .	 .	 .	 .	 .	 .	 .	 .	 .	 .	 .	 . .	 .	 .	 .	 .	 .	 .	 .	 .	 .	 .	 .	 .	 .5-1
5.1.3	 PAPER	 .	 .	 .	 .	 .	 .	 .	 .	 .	 .	 .	 .	 . .	 .	 .	 .	 .	 .	 .	 .	 .	 .	 .	 .	 .	 .5-1
6. SPECIAL INSTRUCTIONS OR RESTRICTIONS . . . . . . . . . . . . . . .6-1
FIGURES
Figure
	
Page
1.	 Deck Setup Example . . . . . . . . . . . . . . . . . . . . . . . . 	 3-3
iv
LIMITED AREA COVERAGE/HIGH RESOLUTION PICTURE TRANSMISSION
(LAC/HRPT) DATA VEGETATIVE INDEX CALCULATION PROCESSOR
1. GENERAL INFORMATION
1.1 SYSTEM NAME
LAWN Processor
1.2 PRIMARY USER
Early Warning/Crop Condition Assessment Project personnel.
1.3 DEVELOPING ORGANIZATION
Lockheed Engineering and Management Services Company, Inc. - S. 0. O'Brien
1.4 COMPUTER FACILITY
The LACVIN processor runs on a DEC POP 11/70 computer system under the IAS
operating system. It is implemented on the USDA FAS computer facility in Houston,
Texas.
1.5 REFERENCES
1.5.1 NOAA Polar Orbiter Data (Tiros N) Users Guide Preliminary Version -
January 1979.
1.5.2 DEC-II-LMFUA-B-D Fortran IV Users Guide
2. DESCRIPTION
2.1 PURPOSE
The purpose of LACVIN is to calculate vegetatiin index numbers on the LAC/HRPT
data for selected IJ grid sections which have been stored on disk.
2.2 USAGE
The LAWN processor is set up to run as a batch job. The input will be a disk
file containing pixels selected from the LAC/HRPT tapes by the LACREG processor
and a control card deck. The VIN numbers will be calculated according to a
user-specified option where
Option 1	 VIN - Channel(B) - Channel (A)
and
Option 2	 VIN - ( Channel (B^ - Charnel A * 100Channel	 + Channe l
The data will be screened before processing for the ^ 1 N as follows:
Channel 1 and 2 data:
Values greater than 500 are set to 251
Values less than 501 are divided by 2 then all values for
Channel 1 are screened using an equation of the general form:
COS((Z 1
 + Z2)/2)
where Z1 . = solar Zenith ante for start of IJ section
Z2	solar Zenith angle for stop of IJ section
This equation is modified when the angles become large.
Channel 3 data:
PIX = (PIX * Slope Coef + Intercept Coef) * 100
All values <20 will be ignored.
Channel 4 data:
PIX = (PIX * Slope oef + Intercept Coef)
All values <20 will be ignored.
The results of the calculations will b y output to the printer.
2-1
1
3. INPUT
3.1 TYPES OF I14PUT
3.1.1 TAPE
None
3.1.2	 DISK
The data will be stored in a disk file with one 2560 word record for each of the
four channels for each IJ grid section. The format of each record is as
follows:
Word Data Type Contents
1 I I	 value
2 I J value
3 I Channel number
4 I Count of number of pixels extracted
for this
	
I,	 J.
5-6 R Slope coefficient for this channel.
7-8 R Intercept coefficient for this channel
9-10 R Latitude for start of search interval
for this IJ data on the first line
of data for this IJ
11-12 R Longitude of start of search interval
for this IJ data on the first line of
data for this
	
IJ
13-14 R Zenith angle of LATLON point in words
9-10 and 11-12
15-16 R Latitude of stop point for search
interval	 for this	 IJ data on the
first scan line of data for this
	
IJ
17-18 R Longitude of stop point for search
interval	 for this
	
IJ data on the first
scan line of data for this
	
IJ
19-20 R Zenith angle of LATLON point in words
15-16 and	 17-18
21-24 R Unused
25-2560
	 I	 Pixel data
3-1 1
3.1.3 CARDS
The processor requires the following system control and data cards. See
figure 1 for example.
Col 1
$JOB ERLYWARN2 LACVIW 100
$RUN LAWN
A,B	 - A and B are 1 digit channel numbers to be used in VIN
cal cul ati ons
N	 - One digit option numbers - either 1 or 2 (section 2.2)
XX	 - 2 digit number containing count of IJ values in input disk
file, range is 01 - 20, right justified.
YES or NO
	
- A histogram of the IJ data section will be given if
requested.
NNNNNN.TTT;V - File name of disk file input for this processor
$EOJ
'i	 3-2
i
Figure 1. Deck Setup Example
3-3
4. PROCESSING
4.1 INTERACTIVE
Not applicable.
4.2 BATCH
The user must submit the deck of cards as described above with a Batch Job Request
form. The request form is as follows:
4-1
4.3 PROCESSING FLOW
4-2
"1
5. OUTPUT
5.1 TYPES OF OUTPUT
5.1.1 TAPE
None
5.1.2 DISK
None
5.1.3 PAPER
The output will be a LAC/HRPT VIN report. It will have one report line per
I, J processed. It will contain the following data
I - XXX J - YYY VIN - ZZ.ZZZ PIXELS AVAILABLE - NNNN 	 PIXELS USED = MMW
'r	
5_1
6. SPECIAL INSTRUCTIONS OR RESTRICTIONS
None
w► sA-Jsc
6-1


Limited Area Coverage/High Resolution Picture Transmission (LAC/HRPT) data vegetative index calculation processor user's manual

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