Minimize PALSAR

The PALSAR menu to your right provide information concerning the SPPA activities for this instrument. 

 

A brief description of the instrument, its operations and main mission highlights is available in the sections below:

Sensor Description   |    Sensor Modes  |    Mission Operations Overview
Minimize Mission Operations Overview

The PALSAR acquisition strategy featured routine observations at four pre-selected sensor modes as shown in the table below. The mode selection represents a compromise solution where scientific requirements, user requests, programmatic aspects and satellite operational constraints had been taken into consideration.

 

Sensor mode

Polarization

Off-nadir
angle

Pass
designation

Caverage

Time
window

Observation
frequency

Fine Beam
Single pol.

HH

34.3°

Ascending

Global

Dec-Feb

1-2 obs/year

Fine Beam
Dual pol.

HH+HV

34.3°

Ascending

Global

May-Sept

1-4 obs/year

Fine Beam
Polarimatric

HH+HV+
VH+VV

21.5°

Ascending

Regional

March-May

2 obs/2 year

Fine Beam
Polarimatric

HH+HV+
VH+VV

23.1°

Ascending

Regional

April-May

1 obs/2 year

ScanSAR
5-beam
short burst

HH

20.1°-
36.5°

Descending

(a) Global
(b) Regional

Jan-Dec

(a) 1 obs/year
(b) 8 obs/1 year

Fine Beam
Dual pol.

HH+HV

49.0°

Ascending

the Arctic Circle

June-Oct

1-3 obs/year

 

To assure spatially and temporally homogeneous data collection over regional scales, acquisitions were planned in units of whole (46-day) repeat cycles, during which only one of the available default modes was selected. The PALSAR strategy was furthermore separated into one plan for ascending (evening) passes, and one for desceding (morning) passes.

For a detailed view of which regions were scheduled for ascending acquisitions by PALSAR during a particular cycle, please see the Ascending PALSAR Acquisition Plan.

For a detailed view of which regions were scheduled for descending acquisitions by PALSAR during a particular cycle, please see the Descending PALSAR Acquisition Plan.