|
gptkbp:instanceOf
|
climatic period
|
|
gptkbp:affectedArea
|
gptkb:Africa
gptkb:Asia
gptkb:Europe
gptkb:Greenland
gptkb:North_America
gptkb:Northern_Hemisphere
gptkb:Arctic
|
|
gptkbp:alsoKnownAs
|
gptkb:Altithermal
gptkb:Hypsithermal
Holocene Climate Optimum
|
|
gptkbp:causedBy
|
gptkb:Milankovitch_cycles
orbital forcing
|
|
gptkbp:characterizedBy
|
higher global temperatures
|
|
gptkbp:endDate
|
approximately 5,000 years ago
|
|
gptkbp:evidence
|
ice cores
lake sediments
tree rings
marine sediments
pollen records
|
|
gptkbp:followedBy
|
gptkb:Neoglaciation
|
|
gptkbp:glacierExtent
|
reduced compared to present
|
|
https://www.w3.org/2000/01/rdf-schema#label
|
Holocene Thermal Maximum
|
|
gptkbp:humanImpact
|
development of early agriculture
|
|
gptkbp:notableEvent
|
gptkb:Green_Sahara_period
rise of early civilizations
retreat of glaciers
expansion of Sahara desert
|
|
gptkbp:partOf
|
gptkb:Holocene_epoch
|
|
gptkbp:precededBy
|
gptkb:Younger_Dryas
|
|
gptkbp:relatedTo
|
paleoclimatology
|
|
gptkbp:startDate
|
approximately 9,000 years ago
|
|
gptkbp:studiedBy
|
geologists
climatologists
paleobotanists
|
|
gptkbp:temperatureComparedToPresent
|
warmer than present
|
|
gptkbp:thrustSeaLevel
|
higher than present
|
|
gptkbp:vegetationChange
|
expansion of forests in some regions
|
|
gptkbp:bfsParent
|
gptkb:Holocene_climatic_optimum
|
|
gptkbp:bfsLayer
|
7
|