FRINK Linked Data Fragments server

Matches in SemOpenAlex for { <https://semopenalex.org/work/W1643789967> ?p ?o ?g. }

• W1643789967 abstract "The first NPOESS satellite is scheduled to be launched in 2010 and will carry the Ozone Mapping and Profiler Suite (OMPS) instruments for ozone monitoring. Prior to this, the OMPS instruments and algorithms will be tested by flight on the NPOESS/NPP satellite, scheduled for launch in 2008. The heritage of satellite instrument validation (TOMS, SBUV, GOME, SCIAMACHY, SAGE, HALOE, ATMOS, etc) has always relied upon surface-based observations. While the global coverage of satellite observations is appealing for validating another satellite, there is no substitute for the hard reference point of a ground-based system such as the Dobson or Brewer network, whose instruments are routinely calibrated and intercompared to standard references. The standard solar occultation instruments, SAGE II and HALOE are well beyond their planned lifetimes and might be inoperative during the OMPS period. The Umkehr network has been one of the key data sets for stratospheric ozone trend calculations and has earned its place as a benchmark network for stratospheric ozone profile observations. The normalization of measurements at different solar zenith angles (SZAs) to the measurement at the smallest SZA cancels out many calibration parameters, including the extra-terrestrial solar flux and instrumental constant, thus providing a self-calibrating technique in the same manner relied upon by the occultation sensors on satellites. Moreover, the ground-based Umkehr measurement is the only technique that provides data with the same altitude resolution and in the same units (DU) as do the UV-nadir instruments (SBUV-2, GOME-2, OMPS-nadir), i.e., as ozone amount in pressure layers, whereas, occultation instruments measure ozone density with height. A new Umkehr algorithm will enhance the information content of the retrieved profiles and extend the applicability of the technique. Automated Dobson and Brewer instruments offer the potential for greatly expanded network of Umkehr observations once the new algorithm is applied. We discuss the new algorithm development and present preliminary results of comparisons between co-located Brewer and Dobson ozone profiles measured at Arosa station in Switzerland. Umkehr measurement background and availability of data ► There are 3 types of operational Umkehr systems: traditional Dobson, automated Dobson and Brewer (single and double) ► Umkehr data have been processed and archived at WOUDC from only two of these systems (traditional and automated Dobson) using UMK92 algorithm. ► Only the C-pair data from the automated Dobsons are used, even though they also take Aand D-pair measurements. ► The algorithm for Brewer Umkehr had been recently developed similar to the Dobson UMK04 algorithm ► Brewer data are available through direct contacts with Brewer operators ►SAG Ozone is in the process to develop procedures for centralized Brewer data archiving Features of the new Umkehr algorithm The a priori profiles have no impact on the monthly-mean anomaly (MMA) simplifies interpretation of trends The algorithm is more linear preserves the probability distribution function of the layer ozone which could otherwise bias the monthly means The measurements in the UMK04 (Petropavlovskikh et al, 2004) are given more weight than in the UMK92 (Mateer & DeLuisi, 1992) total ozone information is part of the measuring system, rather than a part of a priori as in the UMK92. Information content of the lower layers in UMK04 is similar to other layers. Information in the upper layers is not degraded by changing the starting SZA to 70 . Figure 1. Monthly Mean Anomalies (MMA) in matched SBUV-Umkehr for Arosa, Boulder and Tateno Dobson stations (BUV satellites are Nimbus 7, NOAA-09, NOAA-11, NOAA16, 5 month smooth). Figure 2. Time series of the ozone in two layers retrieved from co-incident Dobson and Brewer data at Arosa station. Nearly the same inter-annual ozone variability is observed by the two systems in both the lower and upper atmosphere. Investigation of three critical areas of OMPS performance Pre-Launch Validation Goal: Create a new dataset (algorithm included) with daily ozone profiles from an expanded number of location and broad latitude range for validation of the NPOESS ozone profile products. Methods: Characterize Brewer and automated Dobson instrument measurements for accuracy and precision. Develop an improved algorithm for the Brewer and automated Dobson ozone profile retrievals. Utilize additional wavelength information in Umkehr measurements to validate NPOESS ozone information in the upper stratospheric region. Test the accuracy and precision of the new Brewer/automated Dobson retrievals against other established ground-based networks (ozone-sonde, lidar and microwave) and through NPP and NPOESS validation field campaigns. Establish a baseline of Umkehr measurements using the new algorithm in time for the NPP launch. Post-Launch validation Goal: Investigate the quality of the post-launch OMPS nadir and limb profiles using pre-tested validation methods. Methods: Provide new Brewer and automated Dobson data to the IPO to expand geographical coverage and frequency of ground-based ozone dataset currently available for NPP and NPOESS OMPS validation. Validate OMPS nadir profiler, which can subsequently be used to check the calibration of the Limb Profiler. Quantify resolution and accuracy of the OMPS nadir measurement. Post-Launch algorithm stability evaluation Goal: Evaluate long-term stability of the nadir and limb ozone profile algorithm retrievals Methods: Systematically process, improve and archive Brewer and automated Dobson groundbased observations for NPOESS validation needs. Quantify the stability of the OMPS instrument by providing a calibration reference with expanded Umkehr Brewer and automated Dobson network. This work had been supported by the IGS program of the IPO and by NASA/Goddard. Poster # A43B-0097 No major discord was found Between SBUV and Umkehr independent measurements from 1979 through 2001 time period (Petropavlovskikh et al. 2005). Dobson and Brewer data are collected on regular bases at Arosa, Switzerland, ground station since 1989 (S B U VU m k) /[( SB U V+ U m k) /2 ],% 198" @default.
• W1643789967 created "2016-06-24" @default.
• W1643789967 creator A5006042661 @default.
• W1643789967 creator A5006407508 @default.
• W1643789967 creator A5015331385 @default.
• W1643789967 creator A5018518818 @default.
• W1643789967 creator A5036050002 @default.
• W1643789967 creator A5042381678 @default.
• W1643789967 creator A5050460385 @default.
• W1643789967 date "2005-12-01" @default.
• W1643789967 modified "2023-09-24" @default.
• W1643789967 title "Validation of OMPS Ozone Profile Data with Expanded Dataset from Brewer and Automated Dobson Network." @default.
• W1643789967 hasPublicationYear "2005" @default.
• W1643789967 type Work @default.
• W1643789967 sameAs 1643789967 @default.
• W1643789967 citedByCount "0" @default.
• W1643789967 crossrefType "journal-article" @default.
• W1643789967 hasAuthorship W1643789967A5006042661 @default.
• W1643789967 hasAuthorship W1643789967A5006407508 @default.
• W1643789967 hasAuthorship W1643789967A5015331385 @default.
• W1643789967 hasAuthorship W1643789967A5018518818 @default.
• W1643789967 hasAuthorship W1643789967A5036050002 @default.
• W1643789967 hasAuthorship W1643789967A5042381678 @default.
• W1643789967 hasAuthorship W1643789967A5050460385 @default.
• W1643789967 hasConcept C121332964 @default.
• W1643789967 hasConcept C127313418 @default.
• W1643789967 hasConcept C1276947 @default.
• W1643789967 hasConcept C131040042 @default.
• W1643789967 hasConcept C14279187 @default.
• W1643789967 hasConcept C153294291 @default.
• W1643789967 hasConcept C19269812 @default.
• W1643789967 hasConcept C205649164 @default.
• W1643789967 hasConcept C2776573159 @default.
• W1643789967 hasConcept C2777812092 @default.
• W1643789967 hasConcept C2778027091 @default.
• W1643789967 hasConcept C39432304 @default.
• W1643789967 hasConcept C508106653 @default.
• W1643789967 hasConcept C62649853 @default.
• W1643789967 hasConcept C88575799 @default.
• W1643789967 hasConceptScore W1643789967C121332964 @default.
• W1643789967 hasConceptScore W1643789967C127313418 @default.
• W1643789967 hasConceptScore W1643789967C1276947 @default.
• W1643789967 hasConceptScore W1643789967C131040042 @default.
• W1643789967 hasConceptScore W1643789967C14279187 @default.
• W1643789967 hasConceptScore W1643789967C153294291 @default.
• W1643789967 hasConceptScore W1643789967C19269812 @default.
• W1643789967 hasConceptScore W1643789967C205649164 @default.
• W1643789967 hasConceptScore W1643789967C2776573159 @default.
• W1643789967 hasConceptScore W1643789967C2777812092 @default.
• W1643789967 hasConceptScore W1643789967C2778027091 @default.
• W1643789967 hasConceptScore W1643789967C39432304 @default.
• W1643789967 hasConceptScore W1643789967C508106653 @default.
• W1643789967 hasConceptScore W1643789967C62649853 @default.
• W1643789967 hasConceptScore W1643789967C88575799 @default.
• W1643789967 hasLocation W16437899671 @default.
• W1643789967 hasOpenAccess W1643789967 @default.
• W1643789967 hasPrimaryLocation W16437899671 @default.
• W1643789967 hasRelatedWork W1515573316 @default.
• W1643789967 hasRelatedWork W1673204983 @default.
• W1643789967 hasRelatedWork W1916479894 @default.
• W1643789967 hasRelatedWork W1952662043 @default.
• W1643789967 hasRelatedWork W1975579327 @default.
• W1643789967 hasRelatedWork W1977222109 @default.
• W1643789967 hasRelatedWork W2030768224 @default.
• W1643789967 hasRelatedWork W2064817522 @default.
• W1643789967 hasRelatedWork W20866432 @default.
• W1643789967 hasRelatedWork W2125070195 @default.
• W1643789967 hasRelatedWork W2142395770 @default.
• W1643789967 hasRelatedWork W2238873698 @default.
• W1643789967 hasRelatedWork W2737672010 @default.
• W1643789967 hasRelatedWork W2891713596 @default.
• W1643789967 hasRelatedWork W2903126781 @default.
• W1643789967 hasRelatedWork W2941297605 @default.
• W1643789967 hasRelatedWork W3199864648 @default.
• W1643789967 hasRelatedWork W800714809 @default.
• W1643789967 hasRelatedWork W837863809 @default.
• W1643789967 hasRelatedWork W86178312 @default.
• W1643789967 hasVolume "2005" @default.
• W1643789967 isParatext "false" @default.
• W1643789967 isRetracted "false" @default.
• W1643789967 magId "1643789967" @default.
• W1643789967 workType "article" @default.