NDSC Program Overview

The Network for the Detection for Stratospheric Change (NDSC) was formed to provide a consistent, standardized set of long-term measurements of atmospheric trace gases, particles and physical parameters via a suite of globally distributed sites. Data are obtained from a set of high-quality remote-sounding research stations for observing and understanding the physical and chemical state of the stratosphere. Ozone and key ozone-related chemical compounds and parameters are targeted for measurement.

Program Management

Following five years of planning, instrument design and implementation, the Network for the Detection of Stratospheric Change (NDSC) began network operations in January 1991. The NDSC is a major component of the international upper atmosphere research effort and has been endorsed by national and international scientific agencies, including the International Ozone Commission, the United Nations Environment Programme (UNEP), and the World Meteorological Organization (WMO). Since 1993, the NDSC has been a contributing part of the WMO GAW program.

Contact Information

For questions or comments about NDSC:

Dr. Michael J. Kurylo
Dr. Rudy J. Zander

Data and Information Aspect

The objectives of the NDSC are:

to study temporal and spatial variability of atmospheric composition and structure in order to provide early detection and subsequent long-term monitoring changes in the physical and chemical state of the stratosphere and upper troposphere
to establish the links between changes in stratospheric ozone, UV radiation at the ground, tropospheric chemistry and climate
to provide independent calibration and validations of space-based sensors of the atmosphere and to make complementary measurements
to provide independent calibration and validations of space-based sensors of the atmosphere and to make complementary measurements
to support field campaigns focusing on specific processes occurring at various latitudes and seasons
to produce verified data sets for testing and improving multidimensional chemistry and transport models of both the stratosphere and troposphere

Network development and Station considerations:

NDSC stations have been selected to provide as much latitudinal coverage as possible. Primary station (7) are located in polar, mid-latitude and tropical regions in both hemisphere, plus an equatorial station. Stations are located at relatively dry, pollution-free sites. The geographic coverage is enhanced by more than 40 other sites where complimentary measurements of one or more of the parameters of interest are performed. More sites are planned to be added.