Прибор. IASI-NG. [Редактировать]

16,920 каналов, диапазон 645-2760 cm-1 (3.62-15.50 µm) разделение на 4-е канала

Спектральный диапазон (µm) Спектральный диапазон (cm-1) Спектральное разрешение (unapodised) NEΔT
8.70 - 15.50 µm 645 - 1150 cm-1 0.125 cm-1 0.08-0.18 K @ 280 K
5.26 - 8.70 µm 1150 - 1900 cm-1 0.125 cm-1 0.03-0.38 K @ 280 K
4.35 - 5.26 µm 1900 - 2300 cm-1 0.125 cm-1 0.19-0.32 K @ 280 K
3.62 - 4.35 µm 2300 - 2760 cm-1 0.125 cm-1 0.17-1.10 K @ 280 K

Технические характеристики

#ХарактеристикаЗначение
1Масса, кг.360
2Мощность, Вт500
3Разрешение9 x 12-км IFOV в 75 x 75 км2 ячейке (кадры с расстоянием: 25 км)
4Тип приборарадиометер
5Целевое назначениеИзмерение температуры, влажности, частиц. Также позволяет оценивать содержание C2H2, C2H4, C2H6, CFC-11, CFC-12, CH3OH, CH4, CO, H2CO2, HCN, HNO2, HNO3, N2O, NH3, панхроматический, SO2)
6Тип сканераПоперечное: 20 шагов по 75 км, ряд 2130 км - Вдоль трэка: одна 75-км линия каждые 12 секунд
7Скорость работы, Мбит в секунду6

Найдено 451 документов по запросу «IASI-NG». [Перейти к поиску]


Дата загрузки: 2017-03-10
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0.27/5
... expected to be resolved by IASI/2, while IASI Geoscientific has a vertical resolution... to as IASI/2, is one possible configuration of the IASI-NG (New Generation) instrument (the configuration called IASI-NG/IRS2) currently... average, lower than 10 % for IASI/2. IASI/2 is expected to have a significantly....: LT ozone from IASI-NG Infrared Atmospheric Sounding Interferometer (IASI), have been shown... of the existing projects is IASI-NG (Infrared Atmospheric Sounding Interferometer-New...., 2012; Clerbaux and Crevoisier, 2013). IASI-NG is expected to be launched... the detection of new species. IASI-NG has recently accomplished the phase... of IASI. During this design activity, different possible configurations of IASI-NG have... the following lines is called IASI-NG/IRS2 by Crevoisier et al... to as IASI/2. The IASI/2 concept has a similar horizontal resolution as IASI, with... et al.: LT ozone from IASI-NG in terms of both local... vertical resolution characterization of the IASI and IASI/2 pseudo-observations is given... Sect. 5 we give conclusions. 2 2.1 IASI and IASI/2 pseudo-observations 623 present work... the same observation geometry for IASI/2. IASI overpasses Europe twice a day, at... et al.: LT ozone from IASI-NG constraint matrix is a combination of... pseudo-observations Error estimation for IASI and IASI/2 tropospheric ozone retrievals In... the error budget estimated for IASI and IASI/2 pseudo-observations. According to... the two instruments, 3–7 % for IASI/2 and 6–9 % for IASI in the interval 2–6 km..., smoothing and total errors of IASI/2 and IASI. The improvement is particularly... et al.: LT ozone from IASI-NG 625 Fig. 1. Mean values for... IASI/2 (solid lines): (a) absolute errors, (b) percent errors, (c) percent improvement of IASI/2 over IASI... small difference between our IASI pseudoobservations and IASI real measurements error analysis... et al.: LT ozone from IASI-NG Fig. 4. Histogram of the DOF... particular 0.63 and 0.48 for IASI/2 and IASI, respectively. The maximum sensitivity... et al.: LT ozone from IASI-NG 627 Fig. 5. Mean ozone profiles... ozone distributions retrieved by IASI and IASI/2 Global analysis In the present... a general statistical analysis of IASI and IASI/2 tropospheric ozone profile and surface... troposphere from pseudo-reality, and IASI and IASI/2 pseudo-observations for AM.... It is clear that both IASI and IASI/2 pseudoobservations underestimate the pseudo... (Pearson) coefficient profiles for IASI and IASI/2, with respect to pseudo-reality... (where the information provided by IASI and IASI/2 spectra contribute the most... the more significant differences between IASI and IASI/2. The vertical profile has... also compared IASI and IASI/2 surface–6 km TOC pseudo-observations. IASI has RMSE... et al.: LT ozone from IASI-NG 4.2 Tropospheric ozone distribution at regional... analyses of the performances of IASI and IASI/2 to describe tropospheric ozone...-reality, and IASI and IASI/2 pseudo-observations. The differences of IASI and IASI/2 pseudo.... These results show that both IASI and IASI/2 underestimate the pseudo-reality... (0.1 and 0.2 DU overestimation for IASI and IASI/2, respectively), showing the coherence of... et al.: LT ozone from IASI-NG 629 Table 1. Mean biases, RMSEs... 0–6 km 0–12 km 7–12 km IASI IASI/2 IASI IASI/2 IASI IASI/2 IASI IASI/2 AM Bias [ppb] RMSE [ppb...-land South-sea RMSE [DU(%)] IASI IASI/2 IASI IASI/2 −0.99 (−4.66 %) +0.31 (+2.38 %) +0.28... (top), IASI and IASI/2 pseudoobservations (middle), differences (bottom) of IASI and IASI/2 pseudo-observations... et al.: LT ozone from IASI-NG Fig. 8. Surface–6 km TOC for... AM, MOCAGE pseudo-reality (column 1), IASI and IASI/2 pseudo-observations (columns 2 and... of MOCAGE pseudo-reality, and IASI and IASI/2 pseudo-observations over Amsterdam... et al.: LT ozone from IASI-NG 631 Fig. 10. Time series... pseudo-reality (green), and IASI (black) and IASI/2 pseudo-observations (red) over.... There, both IASI and IASI/2 work pretty well, while IASI/2 still captures better... Fig. 11, MOCAGE pseudo-reality, IASI and IASI/2 pseudo-observations and a priori..., MOCAGE pseudo-reality, and IASI and IASI/2 pseudoobservations over Berlin for the... pseudo-reality (green), and IASI (black) and IASI/2 pseudo-observations (red) over... from IASI-NG Fig. 12. MOCAGE pseudo-reality (green), IASI (black) and IASI/2 pseudo... pseudo-reality (green), and IASI (black) and IASI/2 pseudo-observations (red) over... et al.: LT ozone from IASI-NG linked to a very localized pollution... a possible configuration of IASI-NG (IASI-NG/IRS2, here called IASI/2) TIR nadir satellite instrument... to the evaluation of the IASI-NG mission. Our results are of... overpasses, of IASI and IASI/2 pseudo-observations. We found that IASI/2 brings a specific....5 %), for IASI, to 2.0–1.8 DU (10.7–9.7 %), for IASI/2. According to our analysis, IASI/2 is...´e de l’AIR) and CNES/TOSCA/IASI-NG projects. We wish to thank...: IASI-NG: coordination des activit´es de pr´eparation de la mission IASI... et al.: LT ozone from IASI-NG distributions over Europe during the... et al.: LT ozone from IASI-NG son, D., ten Brink, H., Theloke, J., van...



Дата загрузки: 2017-10-24
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0.21/5
... Toulouse, 21-27 March 2012 IASI-New Generation onboard EPS-SG...érangelo, Didier Renaut, Claudia Stubenrauch IASI oboard MetOp-A Numerical Weather Prediction... GSICS. Lessons learned with IASI onboard MetOp-A: •IASI benefits three communities that... by day/night. What’s next? IASI-NG as part of Eumetsat EPS... Merlin Microcarb METOP MetOp-SG IASI-NG Sentinel 5 IASI on MetOp-A, B (2012) and C (2017) •EPS-SG •PFA : MetIMAGE, MWS, IASI-NG...-France and Thales Alenia Space). IASI-New Generation •Objectives of the...: •To assure the continuity of IASI for NWP, atmospheric chemistry and... (0.50 cm-1 for IASI) Radiometric performances (Level1c) IASI-NG spec. Industrial perf. Radiometric... (NWP) Threshold (AtmC) Breakthrough (AtmC) IASI-NG Prime A Performances Prime B Performances 0,75...: 0.125 cm−1 (0.25 cm-1 for IASI). 0,55 0,45 0.4 0,4 0,35 -reduction of... a factor of ~2 as compared to IASI. 0,3 0,25 0.2 0,2 0,15 0,1 -spatial sampling: 12km... radiometric noise 2800 IASI-NG - Sensitivity analysis – Full spectrum IASI-NG T (1K) H2O (20...%) CH4 (10%) Tsurf (1 K) IASI-NG - Sensitivity analysis – Full spectrum IASI T (1K) H2O (20...%) CH4 (10%) Tsurf (1 K) IASI-NG - Sensitivity analysis – Full spectrum IASI T (1K) H2O (20...%) CH4 (10%) Tsurf (1 K) IASI-NG - Sensitivity analysis – Full spectrum IASI-NG For a 10ppbv CO perturbation: CO ~0.8K Noise: ~0.1K IASI CO...%) CH4 (10%) Tsurf (1 K) IASI-NG - Sensitivity analysis – Full spectrum IASI-NG O3 T CO2 CO... of IASI-NG on Temperature profile sounding T profile error P (hPa) IASI IRS 1 IASI-NG IRS... contribution of IASI-NG is about twice the contribution of IASI. 0 1 10 2 10... 0.2 0.3 0.6 0.8 1.0 1.2 1.4 0.5 0.6 0.7 1.8 IASI IRS 1 IASI-NG IRS 2 a priori a priori DOFS = 5.9 DOFS = 10.7 0.4 1.6 0.8 0.9 1.0 Impact of IASI-NG on... cm-1 P (hPa) 0 Noise Spectral resolution IASI IASI IASI/2 IASI IASI/(2√2 ) IASI IASI/2 IASI/2 IRS 1 100 IRS1 bis IRS1... as: (a posteriori-a priori)/(a priori) IASI contribution IASI-NG contribution • It is in the... on the one developed for IASI (Eremenko et al., GRL, 2008... averaging kernels For ozone [0-6 km]: IASI-NG will bring 50% more info..., 2009. Total column error DOFS IASI-NG NeDT 0.85 K NeDT 0.15 K NeDT...-IRS 10% IASI IASI MTG-IRS Improved vertical resolution IASI-NG Improved accuracy Retrieval... various configurations compared to the IASI current precision (which uses the... precision 15 µm 4.3 µm IASI-NG both 30 % IASI/2 0% 45 % CO2 weighting function IASI Pressure (hPa) Spectral bands for IASI-NG 10 100 •IASI-NG will...: SO2, H2S, H2SO4, ash) Summary IASI IASI-NG Chemistry DOFs O3 3-4 CO 1-2 HNO3... Error (%) DOFs Error (%) What the ‘NG’ brings H2O 5-6 ~13% 6-7 ~10% Error... : 8% PBL : 10% Tropo : 6% 2 What the ‘NG’ brings More information in PBL... resolution and radiometric noise of IASI-NG will enable: (1) a better coverage of... chemical species only detected by IASI).  The reduction of the noise... depend on: (1) the synergy between IASI-NG and EPS-SG/MWS, EPS... generation instruments. IASI-NG improved contributions to… Atmospheric profiling IASI-NG Improvement on pollution... possible + SO2 and ash tracking IASI-NG has the potential for strongly... quality observations delivery. Generation::improved IASI-New Generation supports volcaneous alerts...



Дата загрузки: 2017-11-24
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0.45/5
Evaluation of IASI-NG impact on NWP and atmospheric chemistry compared to IASI Javier ANDREY-ANDRES, Vincent GUIDARD, Nadia FOURRIE, Myriam PEYRE (myriam.peyre@meteo.fr) CNRM-GAME, Météo France and CNRS, 42 av Coriolis 31057 Toulouse, France I. Introduction The hyperspectral infrared sounder IASI has already demonstrated its high capabilities for Numerical Weather Prediction (NWP), atmospheric composition and climate studies. As the second generation of the European Polar System (ESP-SG) is being prepared, a new generation of IASI has been designed and will be on board EPS-SG: IASI-NG (Crevoisier et al., 2014). IASI-NG will benefits from an increased design compared to IASI: double spectral resolution and radiometric noise decreased by a factor 2. In order to get ready to use this new instrument and to evaluate its impact on various applications, a series of simulated data has been built up. Additionally, 1D-Var assimilation experiments have been carried out to evaluate the impact of IASI-NG with respect to IASI. II. Observing System Simulation Experiment (OSSE) construction Four dates in the middle of each season from 2013 have been selected : February 4 th, May 6th, August 6th and November 4th. The full IASI orbit for each one of these data has been computed for a total of 5.242.448 simulations for each instrument (IASI scan is used for IASI-NG). The experiment has been carried out into three steps : (1) Construction of the input data base containing all the required information ; (2) Simulations of spectra for both IASI and IASI-NG ; (3) Spectra perturbation by adding the instrument noise multiplied by a random Gaussian noise. Météo France Preprocessing : - IASI position - Instrument and solar angles (1) Construction of the input database (2) Model simulations 4A and RTTOV (3) Spectra perturbation Instrument characteristics IASI / IASI-NG [Instrument noise] x [Random Gaussian noise] MACC data (from ECMWF) : - Vertical profiles of T, q, O3, CO, SO2 - Surface P and T LMDz Model : - Profiles of CO2 and CH4 OSSE database Wisconsin university : - Atlas of emissivity Figure 1 : OSSE construction III. Case study To compare the impact of IASI-NG new characteristics in retrievals of temperature profiles, both perturbed spectra and input data are introduced into the 1D-Var NPWSAF software. 102 channels from MétéoFrance operational channel selection have been used to retrieve temperature profiles. Among all available data, only clear-sky data over sea, over the AROME-France domain have been considered. AROME is the operational convectivescale model of Météo-France. 6486 observations have been selected. Figure 2 : Selected observations IV. Results The relative gain in error is defined as the difference between the a priori and a posteriori error, divided by the a priori error. IASI-NG news characteristics bring an improvement in error reduction compared to IASI. Gain in error is doubled in the upper troposphere. Yet the gain is limited in lower layers and does not exceed a factor 1,5, This is probably be due to a limited unoptimized channel selection for the retrieval. Improvements will be brought with a dedicated channel selection for IASI-NG. Observation error diagnostic (Desroziers, 2005) for IASI-NG is reduced by a factor 2 compared to IASI, as noise reduction between the two instruments. V. Conclusion and future works - An OSSE experiment has been conducted to assess the impact of IASI-NG, in comparison with IASI one, on NWP models, atmospheric composition and climate studies. - IASI and IASI-NG spectra have been simulated for four dates in the middle of each season. - Retrievals using 102 channels from Météo-France operational channel selection have been carried out, stating the intake of IASI-NG regarding IASI. - In the future, channel selection methods will be applied to IASI-NG on the whole dataset in order to prepare its utilisation in global & mesoscale NWP models. Figure 4 : A posteriori observation error correlation matrices Figure 3 : Relative gain in error for retrievals of temperature profiles for IASI and IASI-NG and corresponding observation error diagnostic. Error variances are lower for IASI-NG than for IASI, but covariances are of the same amplitude, explaining an increased correlation between its channels. These correlations may be due to errors in the radiative transfer or in the spectroscopy. Consequently, a full R matrix must be taken into account for assimilation in NWP models. References Acknowledgments C. Crevoisier et al. (2014) : Towards IASI-New Generation (IASI-NG) : impact of improved spectral resolution and radiometric noise on the retrieval of thermodynamic, chemistry and climate variables. Atmos. Meas. Tech. Vol 7, pp. 4367-4385. The authors benefited from de RTTOV model and 1D-Var software developed in the framework of the NWP-SAF of EUMETSAT and thank Pascal Brunel for his help. They are also grateful to LMD and Bernard Tournier.



Дата загрузки: 2017-10-24
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0.25/5
... 7 - 10 October 2014 Overview of IASI-NG the new generation of infrared... Atmospheric Sounding Interferometer New Generation (IASI-NG) is a key payload element of..., atmospheric chemistry, and climate monitoring. IASI-NG is designed with a very high... by two compared with the IASI first generation ones. The measurement... community. Thus was born the IASI mission which has been designed... accuracy. The role of the IASI instrument is to monitor the... satellite (METOP), IASI has an integrated infrared imager. The IASI-NG mission [6] aims to provide continuity of the IASI service but... performances improvement with respect to IASI’s ones. The Table 1 gives the... by a factor two compared with IASI. First idea to fulfill the requirements is, compared to IASI, to increase the interferometer Optical... on ground spatial sampling as IASI. However, it is well known... Table 1. IASI-NG main requirements Requirement Value sounding point size IASI like (≈12km) spatial sampling IASI like (≈25km) geolocation error IASI/2 (0,5 km) radiometric calibration error IASI/2 NedT@280K IASI/2 radiometric error IASI/2 (≈0,25K @ 280K) continuous spectral covering IASI like spectral resolution IASI/2 spectral sampling IASI/2 spectral calibration error IASI/2 ICSO... due to the FOV. The IASI-NG instrument is based on a classical... the pointing mirror. 1011 .. Fig. 1. IASI-NG functional scheme ICSO 2014 International... four IASI-NG spectral bands. Table 2 give the band separation. Compared to IASI... the sequencing of the activities. IASI-NG needs also to geolocate sounding...-SG [7]) and co-registration with IASI-NG sounding pixels. The co-registation... development plan. IASI-NG detection chain may seem comparable to IASI’s one but... ES) IV. INSTRUMENT BUDGETS The IASI-NG instrument will be composed of... includes opto-mechanical parts of IASI-NG instrument, for the sounder and... – (b) I-EM V. CONCLUSIONS Phase B of the IASI-NG Instrument is now running and... radiometric and spectral improvements that IASI-NG have to reach to fulfill... website http://smsc.cnes.fr/IASI-NG/index.htm REFERENCES [1] [2] [3] [4] [5] [6] [7] [8] [9] [10] http.../atmosphere.htm G. Chalon, F. Cayla, D. Diebel, “IASI : An Advanced Sounder for Operational.... L. Buffet, E. Pequignot, D. Blumstein and al, “IASI instrument onboard Metop-A : Lessons learned..., “The IASI-NG mission: Scientific objectives and expected results,” 3rd IASI Conference Hy... generation Infrared Atmospheric Sounder Interferometer (IASI-NG),” SPIE 8841-22, Current Developments...



Дата загрузки: 2017-11-24
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0.45/5
Hyperspectral Sounding Products Generation Prototyping Specification and Validation Engineer based at EUMETSAT, Darmstadt, Germany HAMTEC Consulting a provider of quality staff to the aerospace industry. We are currently seeking a University educated engineer in a relevant discipline, with a minimum of at least three years of experience in the field of scientific computing. Location: Darmstadt, Germany Start Date: 2nd Quarter 2016 Closing date: 8th February 2016 TASKS: The Key Person will be part of the HSIRL2 team. The Key Person shall especially contribute to the specifications documentation and prototyping of the IASI-NG principal components (referred to as L1D in EPS-SG context) and L2 products generation functions and to the support of the operational software implementation during the initial development phase of the Payload Data Acquisition and Processing. Support to the preparation and completion of the commissioning of IASI/Metop-C is also expected. The tasks of the Key Person will typically include: • Analysis of similarities and specificities to the IASI and IASI-NG processing within the EPS and EPS-SG contexts and the required products, with the aim to maximize algorithm re-use. • Maintenance and evolution of the IASI-NG products generation specification documents, taking into account the above identified commonalities and specificities. • Maintenance and evolution of the documentation including new science resulting from internal developments or external studies or contributions. • Contribution to the review and analysis of specification documents for the input data to the IASING processing chain, e.g. IASI L1c, MWS L1b etc. 1 • Contribute to clarifications and answers to issues raised during the reviews of IASING L1D and L2 documentations; evolve the IASI-NG products generation specification documents taking the review outcome into account. • Support the porting and re-use of IASI processing software in the context of EPS-SG for IASING, including the preparation and documentation of S/W packages, test and verification data. • Prototype functions of the IASI-NG L1D and L2 processing chain. • Adapt and evolve the existing IASI L2 operational processor to form an IASI-NG prototype, e.g. make it ready to ingest IASI-NG and MWS L1 synthetic test data. • Contribution to the harmonisation of the IASI and IASI-NG processors. • Integration and verification of external software deliveries in the prototype processor • Software anomaly fixing • Code optimisation • Development and documentation of prototype software and test procedures • Generation of test data • Statistical analysis and visualisation of hyper-spectral infrared principal components and Level 2 products • Support L2 monitoring facilities and interpretation • Contribution to validation reports for IASI operational and IASI-NG prototype products. Qualifications and Experience • University degree in a relevant discipline • The Key Person shall have at least three years of experience in the field of scientific computing. Specifically, the Key Person shall have experience and skills in Essential Skills • Numerical algorithms; • Development and testing of complex scientific software; • Documentation of complex scientific software; • Generation and documentation of test data and test procedures; • Handling and processing of big amounts of data; • NetCDF format and using associated libraries; • Object oriented techniques for scientific computing; • Concurrent S/W development in a team and Software tools for revision control; • Very good skills in C++; • Advanced use of data analysis and visualisation with tools like IDL or Matlab; preferably with satellite data; 2 Desirable Skills • Inverse problems • Principal component analysis • Further mathematical modelling techniques (non-linear optimization, regression, neural networks, Kalman filters, etc.) • Familiarity with satellite data, preferably from IASI or other hyper-spectral infrared instruments • Use of radiative transfer models • Retrieval of atmospheric parameters from infrared and/or microwave radiances • Software testing • Validation and visualization of satellite products • Software libraries for numerical linear algebra and similar subroutines • Experience with further programming relevant languages and tools such as Perl, • Python, Java, etc. • Multi-threads programming Please send you CV in English to: Simon Davidson via recruit@hamtec.co.uk To register with HAMTEC Consulting and to view current opportunities go to our website: http://www.hamtec.co.uk 3



Дата загрузки: 2017-02-18
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0.08/5
...’s carbon budget? IASI-NG : un nouvel instrument pour les satellites météo ?/IASI-NG: newgeneration instrument...é de l’océan, ou encore IASI, pour l’étude de l’atmosphère... la composition de l’atmosphère, IASI-NG, la nouvelle génération de sondeur... moisture and ocean salinity, and IASI to sound the atmosphere. To... new-generation atmospheric sounding instrument IASI-NG will be flown on Europe... COP21. 38 CONNAÎTRE KNOWING IASI-NG Un nouvel instrument pour les...-2040, embarqueront chacun un instrument IASI-NG de nouvelle génération. Tous identiques... résultats du spectromètre infrarouge IASI (interféromètre atmosphérique... poursuivre le programme avec l’instrument IASI-NG. Ce nouvel instrument gagnera en... l’intégralité du système IASI-NG, composé de l’instrument et de... traitement des données de IASI-NG dans ses systèmes sol... 2021-2040 will fly the IASI-NG new-generation infrared atmospheric sounding... FORECASTS The results of the IASI instrument aboard MetOp-A and MetOp... to pursue the programme with IASI-NG. This new instrument will be... and will develop the whole IASI-NG system, composed of the instrument.... It will also integrate the IASI-NG data processing line in its... des programmes Otos et THR-NG CNES project head for the OTOS and THR-NG programmes later developments. France’s defence... post-CSO. Le satellite THR-NG emportera ces innovations technologiques qui... control moment gyroscope. The THR-NG satellite will fly these technology...ème très haute résolution THR-NG. Artist's view of the OTOS... pave the way for THR-NG, a next-generation veryhigh-resolution observation... d’observation optique. Le programme THR-NG (Très Haute Résolution de Nouvelle... optical observation satellites. The THR-NG next-generation very-high-resolution... a décidé d’engager le programme Comsat-NG. Les deux satellites du programme... résister à de forts brouillages, Comsat-NG devrait fournir de nouvelles capacit... the go-ahead for COMSAT-NG. The two satellites developed under... du système spatial Comsat-NG. Par ailleurs, il est en... les innovations duales. conditions, COMSAT-NG will offer new military Ka... technical responsibility for the COMSAT-NG space system. It is also...



Дата загрузки: 2017-03-26
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0.06/5
... the missions MetOp-A and -B (GOME2/IASI) provide continued nadir-viewing ozone... data from other instruments (e.g., OMI, IASI) • Including new products (e.g., tropospheric data...), equipped with the GOME-2 and IASI instruments. (ii) Three Chinese CMA... IR instruments like GOME-2 and IASI measure a list of ozonerelated trace...-A (GOME-2 and IASI, since 2006); and MetOp-B (GOME-2 and IASI, since 2012.... 2014). • Infrared Atmospheric Sounding Interferometer (IASI), on board of EUMETSAT MetOp... is developing a methane product from IASI. 1.1.3 • Université Libre de Bruxelles (ULB... is heavily involved in the IASI/MetOp satellite mission, being member... auspice of CNES and EUMETSAT. IASI is a sounder that measures the...-1) resolutions (Clerbaux et al 2009). IASI is part of the EPS... 2020 at least. The first IASI instrument onboard the European MetOp... infrared sounders (IMG and TES), IASI has the advantage of high...-real time processing chain for IASI. Of particular relevance here are... the operational processing chain for IASI O3. FORLI-O3 will also... validation. • Infrared Atmospheric Sounding Interferometer (IASI) operating on board of MetOp... chemistry-related activities around the IASI/MetOp satellite mission. The researchers take active part in the IASI Sounder Science Working Group (ISSWG... on total columns (see above), IASI has also profiling capabilities at... decorrelated. The maximum sensitivity of IASI to the ozone profile extends... best cases. In addition to IASI, the ULB researchers are involved... to their large involvement in IASI. They have contributed to several... of global ozone distributions using IASI, both in terms of columns... obtained and the ability of IASI to capture the vertical structure.... • Development of retrieval algorithms for IASI/MetOp for aerosols and CH4... Sentinel-4 and Sentinel-5 (UVN and IASI-NG instruments) and their precursor Sentinel... most studies prior to IASI launch, and for IASI local analyses. A module... series of software specific to IASI (Hurtmans et al., 2012). These... become the operational processor for IASI after their implementation at EUMETSAT... O3MSAFCDOP2 • Radiance indexing schemes for IASI, which are used to track..., upgrade and maintenance of a NRT IASI processing chain. Processing starts with... to the validation activities of IASI and ACE-FTS chemistry products... to the validation activities of IASI chemistry products, in particular CO... oscillation (QBO) proxies to the IASI time series (Wespes et al... six full years of the IASI observation in four selected layers... series for CO columns from IASI and contribution to a decadal record... (ULB) Dissemination in scientific literature IASI CO distributions of profiles are.... Future operational dissemination of the IASI CO, O3, HNO3 and SO2 products from IASI will occur within the O3SAF... Hurtmans, P-F Coheur, C Clerbaux, Validation of IASI ozone profiles, using balloon sounding... field comparisons between GNSS tomography, IASI satellite observations and ALARO model... ozone data from GOME-2 and IASI using reference ground-based measurements... the infrared atmospheric sounding interferometer (IASI). Atmospheric Measurement Techniques, 5, 581-594..., P., & Cammas, J. (2012). Retrieval of MetOp-A/IASI CO profiles and validation with... the Infrared Atmospheric Sounding Interferometer (IASI). Atmospheric Measurement Techniques, 6(4), 917-925... scientific ozone products retrieved from IASI spectra using ozonesondes. Atmospheric Measurement... of polar ozone profiles by IASI/MetOp sounder with 2010 Concordiasi..., D. (2012). Hyperspectral earth observation from IASI. Bulletin of the American Meteorological... transfer and retrieval code for IASI. Journal of quantitative spectroscopy & radiative... Mazière, M. (2012). Validation of IASI FORLI carbon monoxide retrievals using..., H., Szopa, S., & Turquety, S. (2012). Assimilation of IASI satellite CO fields into a global..., T., Schlager, H., & Weinheimer, A. (2012). Analysis of IASI tropospheric O3 data over the... the first time from the IASI/MetOp thermal infrared sounder. Atmospheric... rural regions as seen by IASI and GOME-2. Journal of geophysical... ozone hole as observed by IASI/MetOp for 2008-2010. Atmospheric... climate related studies using the IASI remote sensor’ for preparing the scientific research aspects of the IASI mission on board METOP-A’ • Involved... (A3C, 2011-2013); ACROSAT, B-O3MSAF, IASI-Flow, TRACE-S5P (2014-2015..., 2012-2013 • IASI.Flow: Infrared Atmospheric Sounding with IASI and Follow-on... of the “IASI Conference” series • Member of the IASI Sounder Science Working...) On the remote sensing side, IASI-related activities will be strengthened... group will foster activities with IASI in the context of chemistry... of a N2O data product from IASI. • In anticipation of the upcoming... EPS/Metop Sodankylä campaign to IASI measurements, Atmospheric Measurement Techniques, 4(6), 1177... ozone data from GOME-2 and IASI using reference ground-based measurements... use similar algorithms with the IASI on MetOp-A and the CrIS... Halocarbons in Air Comparison Experiment IASI Infrared Advanced Sounding Interferometer JPL...



Дата загрузки: 2017-04-08
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0.04/5
... the Earth’s major land DORIS-NG, SIRAL, Laser Reflectors Type: Inclined... the Sentinel-5 mission. 3 satellites. METimage, IASI-NG, 3MI, RO, MWS Planned 2022... field, wave and topography. DORIS-NG, RAD, SCAT, ALT Planned 2016.... SEM (POES), ARGOS-3, S&R (NOAA), MHS, IASI, GRAS, GOME2, ASCAT, AMSU-A, AVHRR.... SEM (POES), ARGOS-3, S&R (NOAA), MHS, IASI, GRAS, GOME2, ASCAT, AMSU-A, AVHRR..., climatology. SEM (POES), ARGOS-3, MHS, IASI, GRAS, GOME-2, ASCAT, AMSU-A, AVHRR.../projects/oersted/ LRA, JMR, DORIS-NG, POSEIDON- Type: Inclined, non-sun... reference, high-precision ocean DORIS-NG, AMR-C, GNSS POD Type: Inclined... reference, high-precision ocean DORIS-NG, AMR-C, GNSS POD Type: Inclined..., digital terrain models, environmental monitoring. NG (SPOT) Altitude: 832 km Period... with width > 100 m LRA, DORIS-NG, AMR, GPSP, Kaband Radar INterferometer... Sensor Mission NOAA / NASA TSX-NG Planned 2018 2025 Commercial follow... terrain models, environmental monitoring. TSX-NG X-Band SAR Currently being flown... Instrument (DDMI) NASA (NOAA) DORIS-NG Doppler Orbitography and Radiopositioning Integrated by Satellite-NG CNES DORIS-NG (SPOT) Constellation of bistatic... and Radiopositioning Integrated by Satellite-NG (on SPOT) CNES DPR Dual...-VNIR Hyperspectral VNIR ISRO IASI CNES (EUMETSAT) IASI-NG CNES (EUMETSAT) ICI EPS... spectra budget radiometers monitor TSX-NG Proposed Imaging microwave High resolution... Irradiance Sensor 1 NOAA (NASA) TSX-NG X-Band SAR Waveband: Spatial resolution...



Дата загрузки: 2017-04-23
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... mission Jason 2, Eumetsat • Tru’o’ong Công Chor’i, pêcheur vietnamien 33 E S PA... Manager at Eumetsat • Tru’o’ong Công Chor’i, a Vietnamese fisherman 20 13... selection. The Jason 3, CFOSAT, SWOT, IASI-NG and MERLIN projects detailed on... The date in accuracy from IASI-NG for atmospheric temperature profiles. The... results achieved with the first IASI instrument, which delivered temperature and... atmosphere. Now, the new-generation IASI-NG, a core element of the European.... i IASI-NG A WORTHY SUCCESSOR Ten years after the launch of the IASI interferometer... of performance for meteorological observations. IASI-NG is scheduled to deliver its.... Climatologists are also eagerly awaiting IASI-NG to help them study several...-term monitoring of climate change. IASI-NG marks a major technological step forward... the atmosphere. CNES will deliver IASI-NG to Eumetsat in 2019 for... member countries. HORIZONS TRU’O’ONG CÔNG CHOR’I Vietnamese fisherman. “The Movimar... fish.” In 2006, Tru’o’ong Công Chor’i was captain of a fishing... the system,” says Tru’o’ong Công Chor’i. “It was 3 April and...



Дата загрузки: 2016-12-29
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... pseudo-observations based on both IASI and IASI-NG instrumental configurations. We compared... average, lower than 10 % for IASI-NG. IASI-NG is expected to have a significantly... IASI-NG, while IASI has a vertical resolution of 6–8 km. According to our analyses, IASI-NG... at comparing the performances of IASI-NG and IASI for the monitoring of... simulator Discussion Paper 20 | 2 IASI and IASI-NG pseudo-observations Discussion Paper 15... vertical resolution characterization of the IASI and IASI-NG pseudo-observations is given...., 2008). The two instruments, IASI and IASI-NG are defined by their technical...., 2010). | 3.1 Error estimation for IASI and IASI-NG tropospheric ozone retrievals 10 (1) This... the error budget estimated for IASI and IASI-NG pseudo-observations. According to... units, Fig. 1b), for IASI and IASI-NG pseudo-observations, averaged over all... IASI-NG and 6–9 % for IASI in the interval 2–6 km, and 3–12 % for IASI-NG and 7–11 % for IASI... as a percent improvement of IASI-NG error over IASI error, defined as the..., smoothing and total errors of IASI-NG and IASI. The improvement is particularly... characterize the pseudo-observation of IASI and IASI-NG, with emphasis on the...-value of IASI-NG emerges for the small sensitivity scenarios. There, IASI-NG pseudo... a general statistical analysis of IASI and IASI-NG tropospheric ozone profile and TOC... the troposphere from pseudoreality, and IASI and IASI-NG pseudo-observations, for AM... is clear that both IASI and IASI-NG pseudo-observations underestimate the pseudo... by IASI and IASI-NG Discussion Paper 15 | 10 Discussion Paper 5 sensitivity of IASI-NG... particular 0.63 and 0.48 for IASI-NG and IASI, respectively. The maximum sensitivity... (where the information provided by IASI and IASI-NG spectra contribute the most... the more significant differences between IASI and IASI-NG. The vertical profile has... also compared IASI and IASI-NG TOC surface-6 km pseudo-observations. IASI has RMSE... analyses of the performances of IASI and IASI-NG to describe tropospheric ozone...-reality, and IASI and IASI-NG pseudoobservations. The differences of IASI and IASI-NG pseudo-observations... mean biases and RMSEs of IASI and IASI-NG pseudo-observations ◦ in the... results show that both IASI and IASI-NG underestimate the pseudoreality at southern... (0.1 and 0.2 DU overestimation for IASI and IASI-NG, respectively), showing the coherence of... from MOCAGE pseudo-reality, and IASI and IASI-NG pseudo-observations, for the...-6 km pseudo-reality, and IASI and IASI-NG pseudo-observations over Po Valley... MOCAGE pseudo-reality, and IASI and IASI-NG pseudo-observations over Amsterdam, the.... 10, MOCAGE pseudo-reality, IASI and IASI-NG pseudoobservations and a priori tropospheric profiles..., MOCAGE pseudo-reality, and IASI and IASI-NG pseudo-observations Printer-friendly Version... by IASI-NG, while features of about 4–5 km are sometimes caught by IASI-NG... not correctly retrieved by both IASI and IASI-NG. The relatively high values... of the performances of IASI and IASI-NG TIR nadir satellite instruments, based... overpasses, of IASI and IASI-NG pseudo-observations. We found that IASI-NG would likely....5 %), for IASI, to 2.0–1.8 DU (10.7–9.7 %), for IASI-NG. According to our analysis, IASI-NG is... Figures Back Close 7–12 km IASI-NG IASI IASI-NG IASI IASI-NG IASI IASI-NG Bias (ppb) RMSE (ppb) Correlation... (−3.11 %) −1.46 (−5.42 %) RMSE (DU (%)) IASI IASI-NG 2.39 (13.51 %) 1.91 (10... (%)) IASI-NG | IASI Discussion Paper Table 2. Mean biases and RMSE for IASI and IASI-NG TOC... altitudes. | 7054 There, IASI-NG pseudo-observations have a IASI-NG emerges for the small sensitivity scenarios. LT ozone from IASI-NG P. Sellitto...–7065, 2012 | percent improvement of IASI-NG over IASI. A priori (black line) and... of IASI-NG over IASI. A priori (black and total error (red), for IASI (dotted lines) and IASI-NG..., and IASI-NG: (b) low sensitivity scenario, and and c) high sensitivity scenario, and IASI-NG... particular 0.63 and 0.48 for IASI-NG and IASI, respectively. The maximum sensitivity... (top), IASI and IASI-NG pseudo-observations (middle), differences (bottom) of IASI and IASI-NG pseudo... overpasses, MOCAGE pseudoreality (column 1), IASI and IASI-NG pseudo-observations (columns 2 and 3). Printer... pseudo-reality (green), and IASI (black) and IASI-NG (red) over Po Valley... Fig. MOCAGE pseudo-reality IASI (black) and IASI-NG pseudoover Amsterdam, the Netherlands...), IASI (black) and IASI-NG pseudo-observations (red) 11. MOCAGE pseudo-reality and IASI-NG... Screen / Esc (red) for IASI and IASI-NG (b,c) for the same scenario Discussion... IASI-NG pseudo-observation 70˚ AMTD 5, 7025–7065, 2012 | LT ozone from IASI-NG... IASI-NG pseudoFig.Maps 12. Maps raw and MOCAGE pseudo-reality and IASI-NG... IASI (black) MOCAGE pseudo-reality (green),(red) and IASI (black) andfor IASI-NG pseudo-observations (red) over Berlin for the and IASI-NG...