Class information for:
Level 1: DATA ASSIMILATION//ENSEMBLE KALMAN FILTER//VARIATIONAL DATA ASSIMILATION

Basic class information
ID Publications Average number
of references		 Avg. shr. active
ref. in WoS
1055 2785 32.6 65%


Bar chart of Publication_year

Last years might be incomplete

Classes in level above (level 2)


ID, lev.
above		 Publications Label for level above
10 38832 MONTHLY WEATHER REVIEW//METEOROLOGY & ATMOSPHERIC SCIENCES//JOURNAL OF THE ATMOSPHERIC SCIENCES

Terms with highest relevance score


Rank Term Type of term Relevance score
(tfidf)		 Class's shr.
of term's tot.
occurrences		 Shr. of publ.
in class containing
term		 Num. of
publ. in
class
1 DATA ASSIMILATION Author keyword 171 27% 20% 547
2 ENSEMBLE KALMAN FILTER Author keyword 106 46% 6% 175
3 VARIATIONAL DATA ASSIMILATION Author keyword 56 55% 3% 71
4 ENSEMBLE DATA ASSIMILATION Author keyword 35 81% 1% 21
5 4D VAR Author keyword 32 60% 1% 35
6 TELLUS SERIES A-DYNAMIC METEOROLOGY AND OCEANOGRAPHY Journal 29 14% 7% 191
7 3D VAR Author keyword 16 54% 1% 20
8 OBSERVATION IMPACT Author keyword 15 73% 0% 11
9 ENKF Author keyword 14 46% 1% 23
10 4DVAR Author keyword 14 57% 1% 16

Web of Science journal categories

Author Key Words


Rank Web of Science journal category Relevance score
(tfidf)		 Class's shr.
of term's tot.
occurrences		 Shr. of publ.
in class containing
term		 Num. of
publ. in
class		 LCSH search Wikipedia search
1 DATA ASSIMILATION 171 27% 20% 547 Search DATA+ASSIMILATION Search DATA+ASSIMILATION
2 ENSEMBLE KALMAN FILTER 106 46% 6% 175 Search ENSEMBLE+KALMAN+FILTER Search ENSEMBLE+KALMAN+FILTER
3 VARIATIONAL DATA ASSIMILATION 56 55% 3% 71 Search VARIATIONAL+DATA+ASSIMILATION Search VARIATIONAL+DATA+ASSIMILATION
4 ENSEMBLE DATA ASSIMILATION 35 81% 1% 21 Search ENSEMBLE+DATA+ASSIMILATION Search ENSEMBLE+DATA+ASSIMILATION
5 4D VAR 32 60% 1% 35 Search 4D+VAR Search 4D+VAR
6 3D VAR 16 54% 1% 20 Search 3D+VAR Search 3D+VAR
7 OBSERVATION IMPACT 15 73% 0% 11 Search OBSERVATION+IMPACT Search OBSERVATION+IMPACT
8 ENKF 14 46% 1% 23 Search ENKF Search ENKF
9 4DVAR 14 57% 1% 16 Search 4DVAR Search 4DVAR
10 BACKGROUND ERROR COVARIANCE 13 67% 0% 12 Search BACKGROUND+ERROR+COVARIANCE Search BACKGROUND+ERROR+COVARIANCE

Key Words Plus


Rank Web of Science journal category Relevance score
(tfidf)		 Class's shr.
of term's tot.
occurrences		 Shr. of publ.
in class containing
term		 Num. of
publ. in
class
1 ATMOSPHERIC DATA ASSIMILATION 374 81% 8% 227
2 4D VAR 275 89% 5% 126
3 VARIATIONAL DATA ASSIMILATION 174 48% 10% 266
4 METEOROLOGICAL OBSERVATIONS 119 51% 6% 166
5 ENSEMBLE KALMAN FILTER 110 33% 10% 270
6 DATA ASSIMILATION 104 19% 17% 482
7 SEQUENTIAL DATA ASSIMILATION 100 53% 5% 134
8 RANGE FORECAST ERRORS 100 85% 2% 52
9 SQUARE ROOT FILTERS 98 82% 2% 58
10 VARIATIONAL ASSIMILATION 89 49% 5% 133

Journals


Rank Web of Science journal category Relevance score
(tfidf)		 Class's shr.
of term's tot.
occurrences		 Shr. of publ.
in class containing
term		 Num. of
publ. in
class
1 TELLUS SERIES A-DYNAMIC METEOROLOGY AND OCEANOGRAPHY 29 14% 7% 191

Reviews


Title Publ. year Cit. Active references % act. ref.
to same field
Particle Filtering in Geophysical Systems 2009 137 37 73%
The Ensemble Kalman Filter in Reservoir Engineering-a Review 2009 117 79 77%
Beyond Gaussian Statistical Modeling in Geophysical Data Assimilation 2010 61 96 76%
The Regional Ocean Modeling System (ROMS) 4-dimensional variational data assimilation systems Part I - System overview and formulation 2011 31 50 74%
A review of forecast error covariance statistics in atmospheric variational data assimilation. I: Characteristics and measurements of forecast error covariances 2008 53 51 84%
Filtering of Background Error Variances and Correlations by Local Spatial Averaging: A Review 2010 22 48 96%
A review of forecast error covariance statistics in atmospheric variational data assimilation. II: Modelling the forecast error covariance statistics 2008 49 70 79%
Estimating Model Parameters with Ensemble-Based Data Assimilation: A Review 2013 7 65 75%
Limited-Area Ensemble-Based Data Assimilation 2011 11 116 79%
The Regional Ocean Modeling System (ROMS) 4-dimensional variational data assimilation systems Part II - Performance and application to the California Current System 2011 15 35 60%

Address terms


Rank Address term Relevance score
(tfidf)		 Class's shr.
of term's tot.
occurrences		 Shr. of publ.
in class containing
term		 Num. of
publ. in
class
1 DATA ASSIMILAT SATELLITE METEOROL SECT 13 61% 0.5% 14
2 MOISE PROJECT 11 100% 0.2% 6
3 PROJET MOISE 11 100% 0.2% 6
4 DATA ASSIMILAT SECT 11 69% 0.3% 9
5 CNRM GM 8 75% 0.2% 6
6 DIRECT RECH METEOROL 8 75% 0.2% 6
7 DATA ASSIMILAT SATELLITE METEOROL 7 48% 0.4% 11
8 NUMER PREDICT 6 28% 0.7% 19
9 GM 6 20% 0.9% 25
10 GLOBAL MODELING ASSIMILAT OFF 5 11% 1.5% 42

Related classes at same level (level 1)


Rank Relatedness score Related classes
1 0.0000241858 ANAL PREDICT STORMS//RADIAL WIND//VELOCITY AZIMUTH DISPLAY VAD
2 0.0000160747 PRECIPITATION ASSIMILATION//ANALYSIS NUDGING//FSU COAPS GLOBAL SPECTRAL MODEL
3 0.0000148163 WEATHER AND FORECASTING//ENSEMBLE PREDICTION//ENSEMBLE FORECASTING
4 0.0000112555 NUMER MATH//RUSSIAN JOURNAL OF NUMERICAL ANALYSIS AND MATHEMATICAL MODELLING//NUMERICAL MATH
5 0.0000089022 INGN ERVORIOS//ASSISTED HISTORY MATCHING//DEVONIAN SHALES
6 0.0000088297 ATMOSPHERE OCEAN SCI//MULTISCALE DIFFUSIONS//MORI ZWANZIG
7 0.0000083923 CLOUD TRACKING//CLOUD TOP MICROPHYSICS//COLD RING SHAPE
8 0.0000077227 COOPERAT METEOROL SATELLITE STUDIES//RADIAT CLIMATE BRANCH//UPPER TROPOSPHERIC HUMIDITY
9 0.0000056509 ENSO PREDICTION//ENSO//CENTRAL PACIFIC EL NINO
10 0.0000054578 REGIONAL CLIMATE MODEL//REGIONAL CLIMATE MODELING//DYNAMICAL DOWNSCALING