Performance and Calibration of the Nadir Suomi-NPP Ozone Mapping Profiler Suite From Early-Orbit Images

Pan, Chunhui; Kowalewski, M. G.; Buss, R.; Flynn, L. E.; Wu, Xiangqian; Caponi, M.; Weng, Fuzhong

doi:10.1109/jstars.2013.2259144

Cited by 22 publications

(21 citation statements)

References 14 publications

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“…During the ensuing period of Intensive Calibration and Validation (ICV), the baseline solar irradiance and wavelength were established and the weekly update of dark current was implemented. Initial evaluations [ Pan et al ., ] indicated that OMPS performance has been consistent with the pre‐launch instrument characterization and met the expectation. Currently, the OMPS products are at the Provisional maturity, in transition to the Validated maturity in early 2014 when Long‐Term Monitoring (LTM) will become the focus of post‐launch activities.…”

Section: Introductionsupporting

confidence: 55%

Evaluation of the Sensor Data Record from the nadir instruments of the Ozone Mapping Profiler Suite (OMPS)

Liu

Zeng

et al. 2014

JGR Atmospheres

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This paper evaluates the first 15 months of the Ozone Mapping and Profiler Suite (OMPS) SensorData Record (SDR) acquired by the nadir sensors and processed by the National Oceanic and Atmospheric Administration Interface Data Processing Segment. The evaluation consists of an inter-comparison with a similar satellite instrument, an analysis using a radiative transfer model, and an assessment of product stability. This is in addition to the evaluation of sensor calibration and the Environment Data Record product that are also reported in this Special Issue. All these are parts of synergetic effort to provide comprehensive assessment at every level of the products to ensure its quality. It is found that the OMPS nadir SDR quality is satisfactory for the current Provisional maturity. Methods used in the evaluation are being further refined, developed, and expanded, in collaboration with international community through the Global Space-based Inter-Calibration System, to support the upcoming long-term monitoring.

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Section: Introductionsupporting

confidence: 55%

Evaluation of the Sensor Data Record from the nadir instruments of the Ozone Mapping Profiler Suite (OMPS)

Liu

Zeng

et al. 2014

JGR Atmospheres

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“…View angle #8 also exhibited seasonal dependence. View angle #26 had too few datapoints to determine whether it had seasonal dependence, so it was regression-fit using (2).…”

Section: Resultsmentioning

confidence: 99%

Post-launch performance evaluation of the OMPS Nadir Mapper and Nadir Profiler

Grotenhuis

Flynn

et al. 2014

Earth Observing Systems XIX

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The Joint Polar Satellite System (JPSS) represents the latest generation of polar-orbiting satellites operated by the National Oceanic and Atmospheric Administration (NOAA). The first in the JPSS series of satellites, the Suomi National Polar-orbiting Partnership (NPP) spacecraft was launched in November 2011 to bridge the gap between the current Polar Operational Environmental Satellites (POES) and the future JPSS-1. The Ozone Mapping Profiler Suite (OMPS) is a suite of hyperspectral instruments onboard the Suomi NPP spacecraft designed to continue atmospheric ozone records through both atmospheric profiles and global distribution mapping. OMPS will also be included on the future JPSS payloads. In order to properly extend measurements from previous ozone instruments, including the Solar Backscatter Ultraviolet (SBUV) instrument on POES, proper OMPS calibration is necessary. In this study, the postlaunch performance of the OMPS Nadir Mapper (NM) and Nadir Profiler (NP) are evaluated through their Sensor Data Records (SDRs), which validates their end-to-end calibration. This is achieved through stability monitoring and intercomparison.

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“…A calibration model predicts the annual wavelength shifts Δ λ as a function of time x (number of days of the year) relative to the very first solar observation. The model is modified from the previous study (Pan, Kowalewski, et al, ) and applied for 1 year data only at a time to extract a general trend. The fitting parameters have reduced by 40% while achieving a high degree of accuracy with an R ‐square goodness of 0.999 and root‐mean‐square (RMSE) of 0.0004.…”

Section: Spectral Performance Evaluationmentioning

confidence: 99%

Spectral Performance and Calibration of the Suomi NPP OMPS Nadir Profiler Sensor

Pan

Weng

Flynn

2017

Earth and Space Science

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The Ozone Mapping and Profiler Suite (OMPS) is one of five instruments on board the Suomi National Polar‐orbiting Partnership (Suomi NPP) satellite. As part of OMPS, the Nadir Profiler (NP) spectrometer measures Earth's albedo in ultraviolet wavelengths from 250 to 310 nm to profile Earth atmospheric ozone concentration. Since launch in 2011, many changes in the NP radiometric and spectrometric calibration have been made to improve sensor data quality. The most challenging issue is to characterize instrument on‐orbit spectral calibration and to maintain a stable spectral performance to meet sensor design criteria. Validation of the NP sensor data found an average of 3–5% error in the sensor albedo measurements that exceeded 2% requirement, creating 1–2% uncertainty in ozone profile. Data analysis attributes the error to prelaunch calibration uncertainty, ground‐to‐orbit dichroic changes, and on‐orbit detector wavelength registration drifts. A recent update of calibration significantly improved spectral wavelength knowledge as well as the accuracy of the measured solar spectra. As a result, the wavelength‐dependent albedo error is significantly reduced and generally meets the radiometric uncertainty requirement of 2%.

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Performance and Calibration of the Nadir Suomi-NPP Ozone Mapping Profiler Suite From Early-Orbit Images

Cited by 22 publications

References 14 publications

Evaluation of the Sensor Data Record from the nadir instruments of the Ozone Mapping Profiler Suite (OMPS)

Evaluation of the Sensor Data Record from the nadir instruments of the Ozone Mapping Profiler Suite (OMPS)

Post-launch performance evaluation of the OMPS Nadir Mapper and Nadir Profiler

Spectral Performance and Calibration of the Suomi NPP OMPS Nadir Profiler Sensor

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