Class information for:
Level 2: TREELINE//TUNDRA//ARCTIC ANTARCTIC AND ALPINE RESEARCH

Basic class information

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
3	4	GEOSCIENCES, MULTIDISCIPLINARY//GEOCHEMISTRY & GEOPHYSICS//METEOROLOGY & ATMOSPHERIC SCIENCES	1953906
188	3	JOURNAL OF GLACIOLOGY//GEOGRAPHY, PHYSICAL//COLD REGIONS SCIENCE AND TECHNOLOGY	55694
2226	2	TREELINE//TUNDRA//ARCTIC ANTARCTIC AND ALPINE RESEARCH	5068
2834	1	TUNDRA//ARCTIC TUNDRA//SHRUB EXPANSION	2166
10781	1	TREELINE//ALPINE TREELINE//TIMBERLINE	1063
17198	1	PARAMO//POLYLEPIS AUSTRALIS//POLYLEPIS	638
20062	1	PRIMARY SUCCESSION//GLACIER FORELAND//LUPINUS LEPIDUS	499
23569	1	SKI RUNS//SKI PISTE//HERB CHRONOLOGY	365
24361	1	METROSIDEROS POLYMORPHA//STATE FACTOR ANALYSIS//HAWAII	337

Terms with highest relevance score

rank	Category	termType	chi_square	shrOfCwithTerm	shrOfTermInClass	termInClass
1	TREELINE	authKW	531068	4%	45%	189
2	TUNDRA	authKW	529708	4%	42%	205
3	ARCTIC ANTARCTIC AND ALPINE RESEARCH	journal	421594	5%	25%	274
4	TIMBERLINE	authKW	208198	1%	50%	67
5	ARCTIC AND ALPINE RESEARCH	journal	207875	3%	20%	167
6	ARCTIC TUNDRA	authKW	194319	1%	49%	64
7	ALPINE TREELINE	authKW	181824	1%	75%	39
8	SHRUB EXPANSION	authKW	122400	1%	62%	32
9	KRUMMHOLZ	authKW	121412	0%	78%	25
10	PRIMARY SUCCESSION	authKW	119184	1%	25%	76

Web of Science journal categories

chi_square_rank	Category	chi_square	shrOfCwithTerm	shrOfTermInClass	termInClass
1	Ecology	74423	44%	1%	2205
2	Geography, Physical	33665	14%	1%	707
3	Forestry	18341	11%	1%	551
4	Plant Sciences	14841	25%	0%	1247
5	Environmental Sciences	13857	26%	0%	1337
6	Biodiversity Conservation	11012	7%	1%	376
7	Geography	4960	5%	0%	243
8	Meteorology & Atmospheric Sciences	3437	8%	0%	402
9	Geosciences, Multidisciplinary	1575	8%	0%	383
10	Soil Science	1030	3%	0%	152

Address terms

chi_square_rank	term	chi_square	shrOfCwithTerm	shrOfTermInClass	termInClass
1	ARCTIC BIOL	60454	3%	7%	144
2	PL ALPINE ECOL	59041	0%	50%	19
3	AN SEVERTSOV EVOLUTIONARY MORPHOL ANIM ECOL	56515	0%	91%	10
4	ALASKA GEOBOT	53727	0%	79%	11
5	GLOBAL CHANGE GRP	47060	1%	26%	29
6	MAORI INDIGENOUS PLANNING DEV	45776	0%	82%	9
7	ECOSYST	44191	2%	7%	104
8	SHEFFIELD ARCTIC ECOL	37874	0%	38%	16
9	PERMAFROST CENPERM	32889	0%	21%	25
10	ICAE	32511	0%	35%	15

Journals

chi_square_rank	term	chi_square	shrOfCwithTerm	shrOfTermInClass	termInClass
1	ARCTIC ANTARCTIC AND ALPINE RESEARCH	421594	5%	25%	274
2	ARCTIC AND ALPINE RESEARCH	207875	3%	20%	167
3	JOURNAL OF VEGETATION SCIENCE	45920	3%	5%	142
4	ALPINE BOTANY	45643	1%	28%	26
5	PHYTOCOENOLOGIA	42233	1%	12%	58
6	PLANT ECOLOGY & DIVERSITY	38385	1%	13%	49
7	GLOBAL CHANGE BIOLOGY	32712	3%	3%	152
8	HOLARCTIC ECOLOGY	29825	1%	10%	49
9	JOURNAL OF ECOLOGY	26768	3%	3%	127
10	MOUNTAIN RESEARCH AND DEVELOPMENT	22018	1%	5%	68

Author Key Words

chi_square_rank	term	chi_square	shrOfCwithTerm	shrOfTermInClass	termInClass	LCSH search	Wikipedia search
1	TREELINE	531068	4%	45%	189	Search TREELINE	Search TREELINE
2	TUNDRA	529708	4%	42%	205	Search TUNDRA	Search TUNDRA
3	TIMBERLINE	208198	1%	50%	67	Search TIMBERLINE	Search TIMBERLINE
4	ARCTIC TUNDRA	194319	1%	49%	64	Search ARCTIC+TUNDRA	Search ARCTIC+TUNDRA
5	ALPINE TREELINE	181824	1%	75%	39	Search ALPINE+TREELINE	Search ALPINE+TREELINE
6	SHRUB EXPANSION	122400	1%	62%	32	Search SHRUB+EXPANSION	Search SHRUB+EXPANSION
7	KRUMMHOLZ	121412	0%	78%	25	Search KRUMMHOLZ	Search KRUMMHOLZ
8	PRIMARY SUCCESSION	119184	1%	25%	76	Search PRIMARY+SUCCESSION	Search PRIMARY+SUCCESSION
9	ITEX	115503	0%	77%	24	Search ITEX	Search ITEX
10	PARAMO	115361	1%	30%	62	Search PARAMO	Search PARAMO

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.

Classes with closest relation at Level 2

rank	cluster_id2	link
1	2176	PERMAFROST//STATE FROZEN SOIL ENGN//PERMAFROST AND PERIGLACIAL PROCESSES
2	1849	PEATLAND//SPHAGNUM//BOG
3	3132	SYNTAXONOMY//PHYTOSOCIOLOGY//PHYTOCOENOLOGIA
4	1986	DEHYDRIN//PHENOLOGY//LEA PROTEINS
5	668	FORESTRY//FOREST ECOLOGY AND MANAGEMENT//COARSE WOODY DEBRIS
6	2729	WHITE NOSE SYNDROME//MCMURDO DRY VALLEYS//ANTARCTICA
7	122	JOURNAL OF RANGE MANAGEMENT//ECOLOGY//RANGELAND ECOLOGY & MANAGEMENT
8	3348	RECLAMATION//GYPSOPHILE//GYPSOPHYTES
9	1685	SAP FLOW//TREE PHYSIOLOGY//TRANSPIRATION
10	195	ECOLOGY//SPECIES DISTRIBUTION MODELS//SPECIES RICHNESS

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Class information for: Level 2: TREELINE//TUNDRA//ARCTIC ANTARCTIC AND ALPINE RESEARCH