Class information for:
Level 1: TARGETED OBSERVATIONS//SINGULAR VECTORS//CONDITIONAL NONLINEAR OPTIMAL PERTURBATION

Basic class information
Class id #P Avg. number of
references		 Database coverage
of references
15468 711 31.2 65%


Bar chart of Publication_year

Last years might be incomplete

Hierarchy of classes
The table includes all classes above and classes immediately below the current class.


Cluster id Level Cluster label #P
4 4 ENVIRONMENTAL SCIENCES//GEOSCIENCES, MULTIDISCIPLINARY//METEOROLOGY & ATMOSPHERIC SCIENCES 1766162
4 3       METEOROLOGY & ATMOSPHERIC SCIENCES//JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES//ATMOSPHER SCI 167055
205 2             MONTHLY WEATHER REVIEW//METEOROLOGY & ATMOSPHERIC SCIENCES//WEATHER AND FORECASTING 21088
15468 1                   TARGETED OBSERVATIONS//SINGULAR VECTORS//CONDITIONAL NONLINEAR OPTIMAL PERTURBATION 711

Terms with highest relevance score


rank Term termType Chi square Shr. of publ. in
class containing
term		 Class's shr. of
term's tot. occurrences		 #P with
term in
class
1 TARGETED OBSERVATIONS authKW 662586 3% 86% 18
2 SINGULAR VECTORS authKW 488176 5% 32% 36
3 CONDITIONAL NONLINEAR OPTIMAL PERTURBATION authKW 460124 2% 71% 15
4 ATMOSPHER PREDICTABIL DATA ASSIMILAT address 412274 2% 80% 12
5 ADAPTIVE OBSERVATIONS authKW 382597 2% 64% 14
6 PREDICTABILITY LIMIT authKW 171783 1% 100% 4
7 CNOP authKW 171775 1% 50% 8
8 CNOP P authKW 137425 1% 80% 4
9 CONDITIONAL NONLINEAR OPTIMAL PERTURBATION CNOP authKW 119289 1% 56% 5
10 INITIAL ERROR authKW 119289 1% 56% 5

Web of Science journal categories


Rank Term Chi square Shr. of publ. in
class containing
term		 Class's shr. of
term's tot. occurrences		 #P with
term in
class
1 Meteorology & Atmospheric Sciences 61426 82% 0% 582
2 Oceanography 1196 10% 0% 68
3 Geochemistry & Geophysics 202 5% 0% 38
4 Geosciences, Multidisciplinary 113 6% 0% 41
5 Mathematics, Interdisciplinary Applications 85 3% 0% 21
6 Engineering, Ocean 42 1% 0% 5
7 Physics, Mathematical 30 3% 0% 18
8 Engineering, Marine 14 0% 0% 2
9 Physics, Multidisciplinary 9 4% 0% 25
10 Physics, Fluids & Plasmas 4 1% 0% 8

Address terms


Rank Term Chi square Shr. of publ. in
class containing
term		 Class's shr. of
term's tot. occurrences		 #P with
term in
class
1 ATMOSPHER PREDICTABIL DATA ASSIMILAT 412274 2% 80% 12
2 OCEAN CIRCULAT WAVE 116395 2% 18% 15
3 TROOP 94906 85891 0% 100% 2
4 LASG 74874 5% 5% 35
5 MN SAHA SPACE STUDIES 70977 1% 18% 9
6 STATE NUMER MODELING ATMOSPHER SCI GEOP 66394 5% 4% 38
7 K BANERJEE ATMOSPHER OCEAN STUDIES 53501 1% 14% 9
8 GMME 47375 1% 14% 8
9 ATMOSPHER PHYS 44232 13% 1% 90
10 ATMOSHER SCI GRP 42946 0% 100% 1

Journals


Rank Term Chi square Shr. of publ. in
class containing
term		 Class's shr. of
term's tot. occurrences		 #P with
term in
class
1 MONTHLY WEATHER REVIEW 96144 19% 2% 132
2 QUARTERLY JOURNAL OF THE ROYAL METEOROLOGICAL SOCIETY 81120 13% 2% 92
3 JOURNAL OF THE ATMOSPHERIC SCIENCES 51429 14% 1% 102
4 TELLUS SERIES A-DYNAMIC METEOROLOGY AND OCEANOGRAPHY 47180 6% 3% 40
5 ADVANCES IN ATMOSPHERIC SCIENCES 30277 5% 2% 36
6 NONLINEAR PROCESSES IN GEOPHYSICS 19046 3% 2% 23
7 WEATHER AND FORECASTING 8725 3% 1% 20
8 METEOROLOGY AND ATMOSPHERIC PHYSICS 3763 2% 1% 12
9 BULLETIN OF THE AMERICAN METEOROLOGICAL SOCIETY 3717 2% 1% 15
10 METEOROLOGISCHE ZEITSCHRIFT 3464 1% 1% 9

Author Key Words


Rank Term Chi square Shr. of publ. in
class containing
term		 Class's shr. of
term's tot. occurrences		 #P with
term in
class		 LCSH search Wikipedia search
1 TARGETED OBSERVATIONS 662586 3% 86% 18 Search TARGETED+OBSERVATIONS Search TARGETED+OBSERVATIONS
2 SINGULAR VECTORS 488176 5% 32% 36 Search SINGULAR+VECTORS Search SINGULAR+VECTORS
3 CONDITIONAL NONLINEAR OPTIMAL PERTURBATION 460124 2% 71% 15 Search CONDITIONAL+NONLINEAR+OPTIMAL+PERTURBATION Search CONDITIONAL+NONLINEAR+OPTIMAL+PERTURBATION
4 ADAPTIVE OBSERVATIONS 382597 2% 64% 14 Search ADAPTIVE+OBSERVATIONS Search ADAPTIVE+OBSERVATIONS
5 PREDICTABILITY LIMIT 171783 1% 100% 4 Search PREDICTABILITY+LIMIT Search PREDICTABILITY+LIMIT
6 CNOP 171775 1% 50% 8 Search CNOP Search CNOP
7 CNOP P 137425 1% 80% 4 Search CNOP+P Search CNOP+P
8 CONDITIONAL NONLINEAR OPTIMAL PERTURBATION CNOP 119289 1% 56% 5 Search CONDITIONAL+NONLINEAR+OPTIMAL+PERTURBATION+CNOP Search CONDITIONAL+NONLINEAR+OPTIMAL+PERTURBATION+CNOP
9 INITIAL ERROR 119289 1% 56% 5 Search INITIAL+ERROR Search INITIAL+ERROR
10 THORPEX 116899 1% 39% 7 Search THORPEX Search THORPEX

Core articles
The table includes core articles in the class. The following variables is taken into account for the relevance score of an article in a cluster c:
(1) Number of references referring to publications in the class.
(2) Share of total number of active references referring to publications in the class.
(3) Age of the article. New articles get higher score than old articles.
(4) Citation rate, normalized to year.


Rank Reference # ref.
in cl.		 Shr. of ref. in
cl.		 Citations
1 DIACONESCU, EP , LAPRISE, R , (2012) SINGULAR VECTORS IN ATMOSPHERIC SCIENCES: A REVIEW.EARTH-SCIENCE REVIEWS. VOL. 113. ISSUE 3-4. P. 161 -175 46 74% 1
2 MU, M , ZHOU, FF , WANG, HL , (2009) A METHOD FOR IDENTIFYING THE SENSITIVE AREAS IN TARGETED OBSERVATIONS FOR TROPICAL CYCLONE PREDICTION: CONDITIONAL NONLINEAR OPTIMAL PERTURBATION.MONTHLY WEATHER REVIEW. VOL. 137. ISSUE 5. P. 1623-1639 41 72% 38
3 KIM, HM , JUNG, BJ , (2009) INFLUENCE OF MOIST PHYSICS AND NORMS ON SINGULAR VECTORS FOR A TROPICAL CYCLONE.MONTHLY WEATHER REVIEW. VOL. 137. ISSUE 2. P. 525-543 35 85% 13
4 QIN, XH , MU, M , (2011) A STUDY ON THE REDUCTION OF FORECAST ERROR VARIANCE BY THREE ADAPTIVE OBSERVATION APPROACHES FOR TROPICAL CYCLONE PREDICTION.MONTHLY WEATHER REVIEW. VOL. 139. ISSUE 7. P. 2218 -2232 34 77% 13
5 KIM, HM , JUNG, BJ , (2009) SINGULAR VECTOR STRUCTURE AND EVOLUTION OF A RECURVING TROPICAL CYCLONE.MONTHLY WEATHER REVIEW. VOL. 137. ISSUE 2. P. 505-524 31 86% 18
6 QIN, XH , MU, M , (2012) INFLUENCE OF CONDITIONAL NONLINEAR OPTIMAL PERTURBATIONS SENSITIVITY ON TYPHOON TRACK FORECASTS.QUARTERLY JOURNAL OF THE ROYAL METEOROLOGICAL SOCIETY. VOL. 138. ISSUE 662. P. 185-197 30 81% 6
7 KIM, HM , JUNG, BJ , KIM, YH , LEE, HS , (2008) ADAPTIVE OBSERVATION GUIDANCE APPLIED TO TYPHOON RUSA: IMPLICATIONS FOR THORPEX-PARC 2008.ASIA-PACIFIC JOURNAL OF ATMOSPHERIC SCIENCES. VOL. 44. ISSUE 3. P. 297-312 29 88% 0
8 EHRENDORFER, M , (1997) PREDICTING THE UNCERTAINTY OF NUMERICAL WEATHER FORECASTS: A REVIEW.METEOROLOGISCHE ZEITSCHRIFT. VOL. 6. ISSUE 4. P. 147-183 67 46% 68
9 ZHANG, Y , XIE, YF , WANG, HL , CHEN, DH , TOTH, Z , (2016) ENSEMBLE TRANSFORM SENSITIVITY METHOD FOR ADAPTIVE OBSERVATIONS.ADVANCES IN ATMOSPHERIC SCIENCES. VOL. 33. ISSUE 1. P. 10 -20 23 79% 1
10 QIN, XH , DUAN, WS , MU, M , (2013) CONDITIONS UNDER WHICH CNOP SENSITIVITY IS VALID FOR TROPICAL CYCLONE ADAPTIVE OBSERVATIONS.QUARTERLY JOURNAL OF THE ROYAL METEOROLOGICAL SOCIETY. VOL. 139. ISSUE 675. P. 1544 -1554 30 67% 8

Classes with closest relation at Level 1


Rank Class id link
1 962 DATA ASSIMILATION//ENSEMBLE KALMAN FILTER//QUARTERLY JOURNAL OF THE ROYAL METEOROLOGICAL SOCIETY
2 5114 WEATHER AND FORECASTING//ENSEMBLE FORECASTING//ENSEMBLE PREDICTION SYSTEM
3 3094 JOURNAL OF THE ATMOSPHERIC SCIENCES//METEOROLOGY & ATMOSPHERIC SCIENCES//ATMOSPHERIC BLOCKING
4 18355 ATMOSPHERE OCEAN SCI//STOCHASTIC PARAMETRIZATION//STOCHASTIC PARAMETERIZATION
5 2149 MONTHLY WEATHER REVIEW//JOURNAL OF THE ATMOSPHERIC SCIENCES//POLAR LOWS
6 17757 HOMOTOPIC MAPPING//CLIMATE STUDIES CHINA METEOROL ADM//VARIATIONAL ITERATION
7 821 TROPICAL CYCLONE//HURRICANE//MONTHLY WEATHER REVIEW
8 5297 ANAL PREDICT STORMS//WEATHER AND FORECASTING//SEVERE STORMS
9 27156 PROJET MOISE//MODELING UNCERTAIN BOUNDARIES//NUMERICAL TIDAL MODEL
10 18889 MONTHLY WEATHER REVIEW//FSU COAPS GLOBAL SPECTRAL MODEL//RAIN RATE NUDGING

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