The 2020 Blue Book, by list of authors

01.Assimilation of atmospheric and land observations. Data impact and sensitivity studies. Methodological advances
Author(s)Paper titleCountryPages
H.B. de Azevedo, L.G.G.Goncalves, E.Kalnay, M.WespetalDynamically Weighted Hybrid Gain Data AssimilationBrazil1-03
T. Fujita, H. Seko, T. Kawabata, Y. Ikuta, K. Sawada, D. Hotta, M. KuniiVariational Data Assimilation with Spatial and Temporal Observation Error Correlations of Doppler Radar Radial WindsJapan1-05
Y. Ikuta, H. Kusabiraki, K. Kawano, T. Anzai, M. Sawada, M. Ujiie, S. Nishimoto, Y. Ota, M. NaritaA New Data Assimilation System and Upgrading of Physical Processes in JMA's Meso-scale NWP SystemJapan1-07
T. Kadowaki, Y. Ota, S. YokotaIntroduction of a new hybrid data assimilation system for the JMA Global Spectral ModelJapan1-09
H.C. Lee, D. Behringer, D. KleistA Traceable Observing System Experiment in NCEP GODASUS1-11
H.Liu, A. Collard, J. Jung, D. KleistClear-Sky Radiance (CSR) Assimilation from Geostationary Infrared Imagers at NCEPUS1-13
K.OchiPreliminary results of soil moisture data assimilation into JMA Global AnalysisJapan1-15
I.OkabeOperational use of GOES-16 clear-sky radiance (CSR) data in JMA’s global NWP systemJapan1-17
H. Seko, Y. ShojiImpact of data assimilation of shipborne GNSS data on rainfall forecast (Part 2)Japan1-19
H. Shimizu, M. Kazumori, T. KadowakiImplementation of all-sky microwave radiance assimilation into JMA's global NWP systemJapan1-21

02.Data sets, diagnostic and dynamical investigations, statistical post-processing, reanalysis,and associated studies
Author(s)Paper titleCountryPages
O. Aldukhov, I. ChernykhFirst and second-order trends of air temperature at the surface level from global radiosonde dataRussia2-03
G.Alekseev, A. Pnyushkov, A. Smirnov, A. Vyazilova, N. GlokInfluence of Atlantic inflow on freshwater content in the Arctic OceanRussia2-05
I. Chernykh, O. AldukhovSpatiotemporal distributions of global trends of humidity and temperature in low troposphereRussia2-07
M. Li, D. Luo, I. Simmonds, A. Dai, L. Zhong, Y. YaoThe associations of winter Atlantic SST, Arctic sea ice, and East Asian surface temperatureAustralia2-09
I.I. Mokhov, D.A. SmirnovEstimates of the contribution of key natural modes and anthropogenic forcing to global surface temperature trend at different temporal horizonsRussia2-11
I.I. Mokhov, V.P. Yushkov, A.V. Timazhev, B.A. BabanovStrong squalls in Moscow region in 2017 and 2018Russia2-13
I.I. Mokhov, A.G. PoroshenkoTropical cyclones in the Western North Pacific Ocean: Changes of their total action during past decadesRussia2-15
U. Prokhorova, A. UrazgildeevaEffect from polynyas in the Siberian Arctic seas to atmospheric transport of heat and moistureRussia2-17
A. V. Smirnov, A. V. Muravev, D. B. KiktevCombining precipitation fields on the basis of radar data and mesoscale model output products in nowcasting systems of Hydrometcenter of RussiaRussia2-19
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A. Vyazilova, G. Alekseev, N. Kharlanenkova, N. GlokImpact of global warming on the Siberian rivers runoffRussia2-58

03.Computational studies including new techniques, parallel processing, GPUs. Effects of model resolution
Author(s)Paper titleCountryPages
K. ArakiNumerical Simulation of Heavy Rainfall Event Associated with Typhoon Hagibis (2019) with Different Horizontal ResolutionsJapan3-03
J. Wang, J. Whitaker, E. Hartnett, J. Abeles, G. Theurich, W. Meng, C. Martin, J.H. Alves, F. Yang, A. ChawlaComputational Performance Improvements in GFSv16US3-05

04.Parameterization of atmospheric and surface processes, effects of different physical parameterizations
Author(s)Paper titleCountryPages
K. ArakiNumerical Simulation of Potential Impact of Aerosols on Heavy Rainfall Event Associated with Typhoon Hagibis (2019)Japan4-03
T. Komori, S. Hirahara, R. SekiguchiImproved representation of convective moistening in JMA’s next-generation coupled seasonal prediction systemJapan4-05
P. Marquet, P. BechtoldA new Estimated Inversion Strength (EIS) based on the moist-air entropy.France4-07
C. Matsukawa, H. Yonehara, T. KanehamaEvaluation of revised gravity wave parametrizations using statistics of first-guess departuresJapan4-09
I.I. Mokhov, A.G. PoroshenkoRelationship between intensity and duration of tropical cyclonesRussia4-11
W. Wang, L. Zhu, H.S. Kim, D. Iredell, K. Wu, B. Liu, Z. Zhang, A. Mehra, V. TallapragadaTesting a New Horizontal Mixing-length Formulation in HMONUS4-13
W. Zheng, J. Han, J. Kain, G. Manikin, R. Sun, F. Yang, V. TallapragadaAnalysis and Mitigation of Occasional Precipitation-Type Problems in NCEP Global Forecast SystemUS4-15
H. Zhu, A. Protat,C. FranklinKurnell Storm (2015) simulations with high resolution UMAustralia4-17

05.Development of and studies with regional and convective-scale atmospheric models and ensembles
Author(s)Paper titleCountryPages
J. Dong, B. Liu, Z. Zhang, W. Wang, L. Zhu, C. Zhang, K. Wu, A. Hazelton, X. Zhang, A. Mehra, V. TallapragadaHurricane Analysis and Forecast System (HAFS) Stand-alone Regional (SAR) Model: Real-time Experiments for 2019 North Atlantic Hurricane SeasonUS5-03
A.Hashimoto, S. HayashiNumerical simulations of the cloud and precipitation processes during the heavy rainfall events of early July 2017 and 2018 in JapanJapan5-05
A.Hashimoto, M.Niwano, H.Fujinami, A.Sakai, K.FujitaNumerical simulation of the seasonal precipitation amount over the Himalayan mountain region using the JMA-NHMJapan5-07
M. Kaur, A. K. Sahai, R. Phani, S. JosephSuper-Cyclone Amphan (2020) : Global versus Regional Ensemble PredictionIndia5-09
J. Wang, R. Kotamarthi,W. ChangConvection-permitting scale simulations reduce precipitation bias over North AmericaUSA5-11
J. McQueen, P. Lee, I. Stajner, J. Huang, H.C. Huang, L. PanNOAA’s National Air Quality Forecast Capability for Ozone and Fine Particulate MatterUS5-13

06.Developments in global forecast models, case studies, predictability investigations, global ensembles
Author(s)Paper titleCountryPages
E.Bazile, N. Azouz, A. Napoly, C. LooImpact of the 1D sea-ice model GELATO in the global model ARPEGE.France6-03
Z.N. BegumInvestigations of the International Experiments, GAME and I-STEP and the Global Atmospheric Model FindingsIndia6-05
P. Bhattacharjee, L. Pan, B. Baker, K. Zhang, R. Montuoro, G. Grell, S. McKeen, J. McQueenPreliminary Evaluation of NOAA’s GEFS-Aerosol ModelUS6-07
I.I. Mokhov, A.V. TimazhevClimate anomalies in the North Eurasian regions: predictability for different El-Nino conditionsRussia6-09
I.I. MokhovWarm and cold winters in the North Eurasian regions: Assessment of El-Niño effectsRussia6-11
N.Otsuka,R.Sekiguchi,T.Komori,T.TanakaEffects of stratospheric volcanic aerosols on S2S prediction skillJapan6-13
T. Takakura, T. KomoriTwo-tiered sea surface temperature approach implemented to JMA’s Global Ensemble Prediction SystemJapan6-15
H.Yamaguchi, M.Ikegami, K.Ochi, Y.Ota, R.Sekiguchi, T.TakakuraUpgrade of JMA's Global Ensemble Prediction SystemJapan6-17
H.Yonehara, C. Matsukawa, T. Nabetani, T. Kanehama, T.Tokuhiro, K. Yamada, R. Nagasawa, Y. Adachi, R. SekiguchiUpgrade of JMA’s Operational Global ModelJapan6-19

07.Global and regional climate models, sensitivity and impact experiments, response to external forcing, monthly and seasonal forecasting
Author(s)Paper titleCountryPages
J.Chiba, T.KomoriImproved representation of super-cooled liquid water cloud in JMA’s next-generation coupled seasonal prediction systemJapan7-03
S.Denisov, M.ArzhanovUncertainty of modeled wetland area and methane emissions from HBL due to climatic noiseRussia7-05
A. Gavrikov, S. K. Gulev, M. Markina, N. Tilinina, P. Verezemskaya, B. Barnier, A. Dufour, O. Zolina, Y. Zyulyaeva, M. Krinitsky, I. Okhlopkov, A. SokovLong-Term High-Resolution North Atlantic Atmospheric Hindcast for Multipurpose ApplicationsRussia7-07
H. Kawai, T. Koshiro, S. YukimotoRelationship between shortwave radiation bias over the Southern Ocean and the ITCZ in MRI-ESM2Japan7-09
H. Kawai, T. KoshiroDoes Radiative Cooling of Stratocumulus Strengthen Summertime Subtropical Highs?Japan7-11
T. Koshiro, H. Kawai, S. YukimotoImpact of cloud microphysics parameter on 20th century warming simulated in MRI-CGCM3Japan7-13
S. K. Mandke, A. PrabhuFuture projection of Indian summer monsoon variability under climate change scenario: Results from CMIP5/CCSM4 model simulationIndia7-15
I.I. Mokhov, A.V. TimazhevAtmospheric temperature stratification in dependence on the annual cycle length: Numerical experiments with climate model of general circulationRussia7-17
A. Prabhu, S. K. MandkeSpatial features of snow over Eurasia and precipitation over India in the warming scenarios: CCSM4 model projections from CMIP5India7-19

08.Development of and advances in ocean, sea-ice, and wave modelling and data assimilation
Author(s)Paper titleCountryPages
S. Flampouris, M. De Pondeca, R. Padilla, J. CarleyUpgrades to the NCEP's Real-Time and UnRestricted Mesoscale Analysis Systems for the Significant Wave HeightUS8-03
Z. Garraffo, J.A. Cummings, S. Paturi, Y. Hao, D. Iredell, T. Spindler, B. Balasubramanian, I. Rivin, H.C. Kim, A. MehraRTOFS-DA: Real Time Ocean-Sea Ice Coupled Three Dimensional Variational Global Data Assimilative Ocean Forecast SystemUS8-05
J. Kim, G. Vernieres, S. FlampourisOverview of Sea Ice Data Assimilation Activities and System Development at NOAA-NCEPUS8-07
F.A.Pogarskiy, I.I.MokhovChanges of sea waves characteristics in the Arctic basin from model simulations for the 21st centuryRussia8-09
V.N. Stepanov, Yu.D. ResnyanskiiCovariance functions in multivariate assimilation system with ensemble Kalman filterRussia8-11

09.Development of and studies with coupled and Earth system models and data assimilation systems
Author(s)Paper titleCountryPages
J. Meixner, L. Stefanova, D. Worthen, Jiande Wang, Jun Wang, S. Moorthi, B. Li, J. Kuang, R. Grumbine, A. Chawla, A. MehraModel Development of the Unified Forecast System for Subseasonal to Seasonal TimescalesUS9-03
A. Prabhu, S. K. MandkeRelation between Eurasian snow and India monsoon in historical simulation of CMIP5 modelsIndia9-05
A. WadaAtmosphere-wave-ocean coupled-model simulation on Typhoon Bualoi(2019) and formation of quasi-linear convective system around Boso PeninsulaJapan9-07
A. Wada, H. Yoshimura, M. NakagawaThe effect of the cloud-water conversion rate in the cumulus parameterization on the simulation of Typhoon Lionrock (2016)Japan9-09
A. WadaRainfall simulations of Typhoons Kammuri and Phanfone landfalling in the PhilippinesJapan9-11
A. WadaSensitivity experiments on axisymmetrization of Typhoon Faxai (2019) just before landfalling in Japan simulated by atmosphere-ocean coupled modelJapan9-13
A. WadaAtmosphere-wave-ocean coupled-model simulation on rapid intensification of Typhoon Hagibis (2019)Japan9-15
A. Wada, K. OkamotoAtmosphere-wave-ocean coupled-model simulation on the effect of Himawari-8 all-sky infrared radiances assimilation on the track simulation of Typhoon Jongdari (2018)Japan9-17

10.Forecast verification: methods and studies
Author(s)Paper titleCountryPages
R. Danielson, W. A. Perrie, M. ZhangAn update on linear regression and error correlation: Exploration of baseline climate change impacts on Arctic and North Atlantic fogCanada10-03
J.G.Z.de Mattos, L. F. Sapucci, C. F. Bastarz, A. Frassoni, W. Santos, A. CarrascoSCANTEC: A Community System for Evaluation of Numerical Weather and Climate Prediction ModelsBrazil10-05
L. Stefanova, J. Meixner, A. Mehra, P. Bhattacharjee, R. Grumbine, B. Li, S. Moorthi, Jiande Wang, D. WorthenVerification of the NCEP/EMC Unified Forecast System for Subseasonal to Seasonal TimescalesUS10-07
W. Wang, B. Liu, Z. Zhang, L. Zhu, A. Mehra, V. TallapragadaTen-year Performance of HWRF Model in RI Forecasts -- A New MetricUS10-09
Z. Zhang, J. Zhang, K. Wu, G. Alaka, A. Mehra, V. TallapragadaA Statistical Analysis of High Frequency Track and Intensity Forecasts from NOAA’s Operational Hurricane Weather Research and Forecast (HWRF) Modeling SystemUS10-11