USGS ALOS PALSAR 1.1 and 1.5 Data Dictionary
The Data Dictionaries are a set of information describing the contents, format, and structure of elements for EarthExplorer products.
- Field Definition: The date the image was acquired.
Format:
YYYY/MM/DD
- Field Definition: ADC Sampling Rate of the image.
Values:
16MHz or 32MHz
- Field Definition: Direction of the flight of the SAR System.
- Field Definition: Specifies the SLC image is deskewed to zero-doppler.
- Field Definition: Azimuth Line Time showned in decimal seconds.
- Field Definition: Number of lines along the azimuth direction.
- Field Definition: The number of azimuth looks applied during azimuth mulit-looking.
- Field Definition: Specifies the image azimuth pixel spacing along the azimuth direction.
- Field Definition: Specifies the total multi-look bandwidth.
- Field Definition: Azimuth Scale Factor associated with the image.
- Field Definition: Number of samples to extend the swath in the center range; Single Look Complex Images only.
- Field Definition: Year, Month, Day, Hour, Minute, second the center of scene was collected.
The value for all ALOS PALSAR 1.5 scenes are 0.
- Field Definition: The CHIRP (pulse compression radar technique) Bandwidth.
- Field Definition: The latitude and longitude of the scenes point cloud data in decimal degrees.
Values:
Coordinates in decimal degrees for following fields:
Scene Center Latitude and Longitude
NE Corner Latitude and Longitude
NW Corner Latitude and Longitude
SE Corner Latitude and Longitude
SW Corner Latitude and Longitude
Latitude Format Decimal Degrees:
-90 - 90
Longitude Format Decimal Degrees:
-180 - 180
Coordinates - Degrees, Minutes, Seconds
- Field Definition: The latitude and longitude of the scenes point cloud data.
Values:
Scene Center Latitude and Longitude
Northeast (NE) Corner Latitude and Longitude
Northwest (NW) Corner Latitude and Longitude
Southeast (SE) Corner Latitude and Longitude
Southwest (SW) Corner Latitude and Longitude
Longitude Format:
DDDMMSS.SSH
DDD = Degree(s) with a range of 0 through 180
MM = Minute(s) with a range of 0 through 59
SS.SS = Second(s) with a range of 0 through 59.99
H = Hemisphere with E for east and W for west
Latitude Format:
DDMMSS.SSH
DD = Degree(s) with a range of 0 through 90
MM = Minutes(s) with a range of 0 through 59
SS.SS = Second(s) with a range of 0 through 59.99
H = Hemisphere with N for north and S for south
- Field Definition: Date the data was entered into collection.
Format:
Year, Month, Day
- Field Definition: Date of most recent update to data in a specific record in the collection.
Format:
Year, Month, Day
- Field Definition: Year, Month, Day, Hour, Minute, second the last line of scene was collected.
- Field Definition: This field uniquely identifies the individual scene.
Values:
Example 1_20060610_02010_7150_1
Valid Format:
1 = ALOS PALSAR 1.1; 5 = ALOS PALSAR 1.5
2006 = Year
06 = Month
10 = Day
02010 = Orbit Number
7150 = Starting frame number
0510 = Ending frame number
1 = Version Number
- Field Definition: Number of samples to extend the swath in the far range; Single Look Complex images only.
- Field Definition: The frame number assigned to the image.
- Field Definition: Heading consists of a 8.5 numeric value.
- Field Definition: Image Format
Values:
FCOMPLEX for ALOS PALSAR 1.1 data
FLOAT for ALOS PALSAR 1.5 data
- Field Definition: Image Geometry.
Values:
Slant Range Geometry for ALOS PALSAR 1.1 data
Geocoded Geometry for ALOS PALSAR 1.5 data
- Field Definition: Incidence Angle value.data
Values:
7.5 Numeric value for ALOS PALSAR 1.1 data
0 value for ALOS PALSAR 1.5 data
- Field Definition: The size of the Line Header.
- Field Definition: Number of samples to extend the swath in the near range; Single Look Complex images.
- Field Definition: Number of State vectors associated with the image.
- Field Definition: Number of orbit.
- Field Definition: Specifies the polarization type of image.
Values:
HH = Horizontal transmit and Horizonal receive
HH,HV = Horizontal transmit and Horizonal receive, Horizonal transmit and vertical receive
HH,HV,VH,VV = Horizontal transmit and Horizonal receive, Horizonal transmit and vertical receive, Vertical transmit and horizonal receive, Vertical transmit and vertical receive
- Field Definition: The pulse repetition frequency (PRF) pertaining to the image.
- Field Definition: The Radar Frequency for both 1.1 and 1.5 data is 1.270E+09?????????.
- Field Definition: Number of range looks per sub-aperture.
- Field Definition: Specifies the pixel spacing in the range direction.
- Field Definition: Number of samples in the range direction.
- Field Definition: The typical range scale factor of 1.
- Field Definition: Receiver Gain for ALOS PALSAR 1.1 is 24. No value given for 1.5.
- Field Definition: Year, Month, Day, Hour, Minute, second the first line of scene was collected.
- Field Definition: The satellite time of the first state vector.
The Data Dictionaries are a set of information describing the contents, format, and structure of elements for EarthExplorer products.
- Field Definition: The date the image was acquired.
Format:
YYYY/MM/DD
- Field Definition: ADC Sampling Rate of the image.
Values:
16MHz or 32MHz
- Field Definition: Direction of the flight of the SAR System.
- Field Definition: Specifies the SLC image is deskewed to zero-doppler.
- Field Definition: Azimuth Line Time showned in decimal seconds.
- Field Definition: Number of lines along the azimuth direction.
- Field Definition: The number of azimuth looks applied during azimuth mulit-looking.
- Field Definition: Specifies the image azimuth pixel spacing along the azimuth direction.
- Field Definition: Specifies the total multi-look bandwidth.
- Field Definition: Azimuth Scale Factor associated with the image.
- Field Definition: Number of samples to extend the swath in the center range; Single Look Complex Images only.
- Field Definition: Year, Month, Day, Hour, Minute, second the center of scene was collected.
The value for all ALOS PALSAR 1.5 scenes are 0.
- Field Definition: The CHIRP (pulse compression radar technique) Bandwidth.
- Field Definition: The latitude and longitude of the scenes point cloud data in decimal degrees.
Values:
Coordinates in decimal degrees for following fields:
Scene Center Latitude and Longitude
NE Corner Latitude and Longitude
NW Corner Latitude and Longitude
SE Corner Latitude and Longitude
SW Corner Latitude and Longitude
Latitude Format Decimal Degrees:
-90 - 90
Longitude Format Decimal Degrees:
-180 - 180
Coordinates - Degrees, Minutes, Seconds
- Field Definition: The latitude and longitude of the scenes point cloud data.
Values:
Scene Center Latitude and Longitude
Northeast (NE) Corner Latitude and Longitude
Northwest (NW) Corner Latitude and Longitude
Southeast (SE) Corner Latitude and Longitude
Southwest (SW) Corner Latitude and Longitude
Longitude Format:
DDDMMSS.SSH
DDD = Degree(s) with a range of 0 through 180
MM = Minute(s) with a range of 0 through 59
SS.SS = Second(s) with a range of 0 through 59.99
H = Hemisphere with E for east and W for west
Latitude Format:
DDMMSS.SSH
DD = Degree(s) with a range of 0 through 90
MM = Minutes(s) with a range of 0 through 59
SS.SS = Second(s) with a range of 0 through 59.99
H = Hemisphere with N for north and S for south
- Field Definition: Date the data was entered into collection.
Format:
Year, Month, Day
- Field Definition: Date of most recent update to data in a specific record in the collection.
Format:
Year, Month, Day
- Field Definition: Year, Month, Day, Hour, Minute, second the last line of scene was collected.
- Field Definition: This field uniquely identifies the individual scene.
Values:
Example 1_20060610_02010_7150_1
Valid Format:
1 = ALOS PALSAR 1.1; 5 = ALOS PALSAR 1.5
2006 = Year
06 = Month
10 = Day
02010 = Orbit Number
7150 = Starting frame number
0510 = Ending frame number
1 = Version Number
- Field Definition: Number of samples to extend the swath in the far range; Single Look Complex images only.
- Field Definition: The frame number assigned to the image.
- Field Definition: Heading consists of a 8.5 numeric value.
- Field Definition: Image Format
Values:
FCOMPLEX for ALOS PALSAR 1.1 data
FLOAT for ALOS PALSAR 1.5 data
- Field Definition: Image Geometry.
Values:
Slant Range Geometry for ALOS PALSAR 1.1 data
Geocoded Geometry for ALOS PALSAR 1.5 data
- Field Definition: Incidence Angle value.data
Values:
7.5 Numeric value for ALOS PALSAR 1.1 data
0 value for ALOS PALSAR 1.5 data
- Field Definition: The size of the Line Header.
- Field Definition: Number of samples to extend the swath in the near range; Single Look Complex images.
- Field Definition: Number of State vectors associated with the image.
- Field Definition: Number of orbit.
- Field Definition: Specifies the polarization type of image.
Values:
HH = Horizontal transmit and Horizonal receive
HH,HV = Horizontal transmit and Horizonal receive, Horizonal transmit and vertical receive
HH,HV,VH,VV = Horizontal transmit and Horizonal receive, Horizonal transmit and vertical receive, Vertical transmit and horizonal receive, Vertical transmit and vertical receive
- Field Definition: The pulse repetition frequency (PRF) pertaining to the image.
- Field Definition: The Radar Frequency for both 1.1 and 1.5 data is 1.270E+09?????????.
- Field Definition: Number of range looks per sub-aperture.
- Field Definition: Specifies the pixel spacing in the range direction.
- Field Definition: Number of samples in the range direction.
- Field Definition: The typical range scale factor of 1.
- Field Definition: Receiver Gain for ALOS PALSAR 1.1 is 24. No value given for 1.5.
- Field Definition: Year, Month, Day, Hour, Minute, second the first line of scene was collected.
- Field Definition: The satellite time of the first state vector.