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Ensemble Kalman Fitting Paleo-Reanalysis Version 2 (EKF400_v2)
EKF400 version 2 is a monthly resolved paleo-reanalysis covering the period 1603 to 2003. Early instrumental temperature, surface pressure and precipitation (new in version 2) observations, temperature indices derived from historical documents and temperature and moisture sensitive tree-ring measurements (largely increased number in version 2) were assimilated into an atmospheric general circulation model ensemble using a Kalman filtering technique. This data set combines the advantage of traditional reconstruction methods of being as close as possible to observations with the advantage of climate models of being physically consistent and having 3-dimensional information about the global state of the atmosphere at 2x2 degree resolution for various variables and at all points in time.
While version 1 was using time-dependent covariances from the 30-member ensemble, version 2 uses a blended covariance matrix. It consists of 50% time-dependent and 50% climatological covariances. This leads to a better covariance estimation, not only between various locations in space but in between various variables, too.
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Citation proposal
(2020) . Ensemble Kalman Fitting Paleo-Reanalysis Version 2 (EKF400_v2). https://gdk.gdi-de.org/geonetwork/srv/api/records/wdc-climate.de:3879249 |
INSPIRE
Identification
- File identifier
- wdc-climate.de:3879249 XML
- Hierarchy level
- collection collection
Online resource
Resource identifier
- code
- EKF400_v2.0
- code
- doi:10.26050/WDCC/EKF400_v2.0
- Metadata language
- eng; USA
Encoding
- Format
- NetCDF
Projection
Classification of data and services
Classification of data and services
Coupled resource
Coupled resource
Classification of data and services
Coupled resource
Coupled resource
Keywords
Other keywords
- Keywords
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- data assimilation
- Keywords
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- tree ring proxy data
Geographic coverage
))
Temporal reference
Temporal extent
Temporal extent
- Date ( Publication )
- 2020-07-28
Quality and validity
Conformity
Conformity
Conformity
Conformity
Conformity
Conformity
Restrictions on access and use
Restrictions on access and use
Responsible organization (s)
Contact for the resource
- Organisation name
- University of Bern
Responsible organization (s)
Contact for the resource
- Organisation name
- University of Bern
Metadata information
Contact for the metadata
- Organisation name
- University of Bern
- Organisation name
- University of Bern
- Date stamp
- 2020-06-23T16:32:29
- Metadata language
- eng; USA
SDS
Conformance class 1: invocable
Access Point URL
Endpoint URL
Technical specification
Conformance class 2: interoperable
Coordinate reference system
Quality of Service
Access constraints
Limitation
Use constraints
Limitation
Responsible custodian
Contact for the resource
Conformance class 3: harmonized
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