Advanced Terra Fusion Resampling Tool

Terra Data Fusion Project - University of Illinois

Contributers

Yizhao Gao ([email protected])
Ya Long Lo ([email protected])

Staff at NCSA and The HDF Group

Introduction

This is the second phase of NASA TERRA DATA FUSION project. It is designed to resample the radiance values from any arbitrary Terra instrument to any other Terra instument. It takes in the output file generated by BasicFusion and generates a new HDF5 file with all radiance values resampled to the target instrument.
For example, this tool can be used to resample:

• MISR 1.1km resolution data to MODIS 1km resolution pixels
• ASTER 15m resolution data to MISR 250m resolution pixels

Key Features

1. All calculatations are based on spherical (great circle) distances using the latitude and longtitude of pixels
2. The input pixels are assumed to be irregularily spaced, which is especially true for MODIS
3. The granule for analysis is an entire orbit (one circle of the Terra satallite around the earth)

Usage

1. Build the tool according to INSTALL.txt.
2. The Input parameter template files can be found under the top directory with the file name starting with inputParameters(inputParameters_MISR2MODIS.txt etc.). Check the comments of the inputParameters_???.txt on how to provide the parameters.
3. Run at NCSA Bluewaters or the similar system, follow AFtest.pbs.
4. Run on General Linux or MacOS, under the top directory, ./AFtool inputParameters_MISR2MODIS.txt.