HR: 16:30h
AN: A54D-03 [Abstracts]
TI: Advances in Data Reported SI
AU: * Pollock, D B
EM: pollockd@uah..edu
AF: The University of Alabama in Huntsville, 301 Sparkman Drive
OB 444, Huntsville, AL 35899, United States
AU: Datla, R U
EM: rdatla@nist.gov
AF: The National Institute of Standards and Technology, 100 Technology Drive, Gaithersburg,
MD 20899, United States
AU: Smith, A W
EM: allan.smith@nist.gov
AF: The National Institute of Standards and Technology, 100 Technology Drive, Gaithersburg,
MD 20899, United States
AU: Kacker, R N
EM: raghu.kacker@nist.gov
AF: The National Institute of Standards and Technology, 100 Technology Drive, Gaithersburg,
MD 20899, United States
AB:
Recognizing that higher demands would be placed on remote sensing, the report on High Accuracy Space Based
Calibration Requirements, 1998 (Ref.1) and the article on Traceable to SI Units (Ref. 2), laid the ground work for
results to be traced to the International System of Units. Climate Data Records demand high accuracy
measurements to detect small signal variations in long time series observations. To do so mandates calibration
source and remote sensor data traceability to SI. Improved remote sensing nomenclature adopted by the
National Institute of Standards and Technology (NIST) clarifies the meaning of physical units and uncertainty in
measurement. The need to report results in the International System of Units is being accepted by the remote
community as essential for the results to have meaning scientist to scientist and program to program. The
statistical processes that support calibration data interpretation are evolving. Certain processes and procedures
should be followed especially for remote sensor calibration and subsequent data reduction and analysis. As
progress is being made in these areas then data items in principle are becoming better known within a stated
uncertainty relative to the internationally adopted base units. We will discuss a complete package; nomenclature,
processes and procedures, that gives full meaning to data reported as being SI. Remote sensing results will
cease being misinterpreted frequently when the community has applied the complete package.
1. Murdock, T. L. & D. B. Pollock, High Accuracy Space-based Remote Sensing Calibration Requirements,
National Institute of Standards and Technology, NIST GCR 98-748, March 1998.
2. Pollock, D. B., T. L. Murdock, R. U. Datla, A, Thompson, Traceable to SI Units, International Journal of Remote
Sensing, Vol 24, Number 2, p225-236, 2003.
DE: 0394 Instruments and techniques
SC: Atmospheric Sciences [A]
MN: 2007 Fall Meeting