Ozonesonde
Network
The pre-deployment phase of TRACE-P, consisting of a 12 ozonesonde network, was initiated to provide a time history of tropospheric ozone in the TRACE-P study region and to augment the data obtained aboard the aircraft during deployment. Ozonesonde balloons are released from Trinidad Head, California; Hilo, Hawaii; Sapporo, Tateno Naha, and Kagoshima Japan; Watukosek, Indonesia; Suva, Fiji; Pago Pago, American Samoa; Hong Kong; Taiwan; and Cheju Island, Korea (Figure 2.5-1).
The sondes from Trinidad Head, California and Hilo Hawaii are included in TRACE-P as sites operated by PI Sam Oltmans (see section 4.5.2). The Cheju Island, Korea site is
operated by Jae Kim, a co-investigator of Sam Oltmans. The Sapporo, Tateno, Naha, and Kagoshima, Japan sites are included as part of an agreement with the Japan Meteorological Agency and Hideyuki Sasaki. These are standard on-going releases, which have a data sharing agreement with TRACE-P (see Section 2.4.4 and Appendix M). The ozonesondes at Indonesia; Fiji; and American Samoa are maintained by SHADOZ (Southern Hemisphere ADditional OZonesondes) and provided to TRACE-P through PI Anne Thompson. The ozonesonde data at Hong Kong and Taiwan are provided to TRACE-P per agreements described in Sections 2.4.2 and 2.4.6, respectively. Data sharing will conform to the TRACE-P Data Protocol
(see Section 6.1).
Table B-1 lists the investigator and/or organization responsible for ozonesonde operations at each site as well as the nominal launch rate
Table B-1 TRACE-P Ozonesonde Network
SITE INVESTIGATOR
1Trinidad Head, California Sam Oltmans/NOAA
1Hilo, Hawaii Sam Oltmans/NOAA
2Sapporo, Japan Hideyuki Sasaki/JMA
2Tateno, Japan Hideyuki Sasaki/JMA
2Naha, Japan, Hideyuki Sasaki/JMA
2Kagoshima, Japan Hideyuki Sasaki/JMA
3Watukosek, Indonesia SHADOZ
3Suva, Fiji SHADOZ
3Pago Pago, American Samoa SHADOZ
4Hong Kong H. K. Lam/HKO
5Taiwan Jen-Ping Chen/NTU
6Cheju Island, Korea Jae Kim/Pusan University
Launch Rate:
1Once per week early spring 2000 – spring 2002, three times per week during the mission
2Once per week from as soon as possible through October 2001
3Weekly
4Once per week premission through May 2002, twice per week during deployment
5Once per week March 2000 – May 2002, twice per week during deployment
6Seven launches; once per week during TRACE P deployment
Sensor:
1EnSci 2Z
2Carbon Iodine Model KC 96
3Java: EnSci 2Z
3Others: SPC 6A
4Vaisala ECC Model Z
5Vaisala ECC Model Z
6EnSci 2Z
Data Archival:
Typical ozonesonde data received at Langley are: time, pressure, geopotential height, temperature, relative humidity, ozone partial pressure, etc. All levels received are reprocessed into GTE format. Basic QC are performed and bad data are removed. If ozone mixing ratio is not provided, then, it is calculated for input into the GTE format.
At Langley, the work is straight forward: receiving the data, performing low level QC (reporting PI's are responsible for quality), calculation of missing values, if possible, and putting data into a common GTE format, and archiving the data for use by PI's.
Reference:
Thompson, A. M., J. C. Witte, R. D. McPeters, et al. The 1998-2000 SHADOZ(Southern Hemisphere Additional Ozonesondes)Tropical Ozone Climatology: Comparison with TOMS and Ground-based Measurements. Appendix: Techniques and Characteristics of Individual SHADOZ sites. Submitted to JGR-Atmospheres for PEM Tropics B Second Special Section.