Data · collection
IAI-ScientificArticles-CRN_003_Wrangell: Boreal temperature variability inferred from maximum latewood density and tree-ring width data, Alaska
Listed in NASA Earthdata CMR
This metadata references the scientific article: "Boreal temperature variability inferred from maximum latewood density and tree-ring width data, Wrangell Mountain region, Alaska", which can be download from here.
Description
Authors: Nicole K. Davi,(a,)* Gordon C. Jacoby,(a) and Gregory C. Wiles(b) (a)Lamont-Doherty Earth Observatory, Columbia University, Palisades, NY 10964, USA (b)Department of Geology, The College of Wooster, Wooster, OH 44691, USA Variations in both width and density of annual rings from a network of tree chronologies were used to develop high-resolution proxies to extend the climate record in the Wrangell Mountain region of Alaska.
We developed a warm-season (July-September) temperature reconstruction that spans A.D. 1593-1992 based on the first eigenvector from principal component analysis of six maximum latewood density (MXD) chronologies. The climate/tree-growth model accounts for 510f the temperature variance from 1958 to 1992 and shows cold in the late 1600s early 1700s followed by a warmer period, cooling in the late 1700s early 1800s, and warming in the 20th century.
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The 20th century is the warmest of the past four centuries. Several severely cold warm-seasons coincide with major volcanic eruptions. The first eigenvector from a ring-width (RW) network, based on nine chronologies from the Wrangell Mountain region (A.D. 1550-1970), is correlated positively with both reconstructed and recorded Northern Hemisphere temperatures.
RW shows a temporal history similar to that of MXD by increased growth (warmer) and decreased growth (cooler) intervals and trends. After around 1970 the RW series show a decrease in growth, while station data show continued warming, which may be related to increasing moisture stress or other factors. Both the temperature history based on MXD and the growth trends from the RW series are consistent with well-dated glacier fluctuations in the Wrangell Mountains and some of the temperature variations also correspond to variations in solar activity. 2003 University of Washington.
Published by Elsevier Inc. All rights reserved. Keywords: Paleoclimate; Tree rings; Maximum latewood density; Ring width; Temperature; Boreal; Alaska CRN003, PI Dr.
Brian Luckman.
Links
Catalogue records · 2
- CMR record cmr.earthdata.nasa.gov/search/concepts/C1214155364-SCIOPS.html ↗
catalogue entry · from NASA CMR
- CMR UMM-JSON cmr.earthdata.nasa.gov/search/concepts/C1214155364-SCIOPS.umm_json ↗
metadata API · from NASA CMR
Topics
- Stated by source
- Air Temperature · Air Temperature Reconstruction · Not provided · Tree Rings
Provenance · 1 source records, 10 field assertions
| Source | Key | Last seen | Raw |
|---|---|---|---|
| NASA Earthdata CMR | C1214155364-SCIOPS | 12 d ago | JSON v1 |
| Field | Assertion | Extractor | Evidence |
|---|---|---|---|
| access_level | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| concepts[measured_variable].gcmd:earth-science/atmosphere/atmospheric-temperature/surface-temperature/air-temperature | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| concepts[measured_variable].gcmd:earth-science/paleoclimate/land-records/tree-rings | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| concepts[measured_variable].gcmd:earth-science/paleoclimate/paleoclimate-reconstructions/air-temperature-reconstruction | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| concepts[platform].gcmd_platform:not-provided | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| description | source · NASA CMR | connector:nasa_cmr@1.0.0 | /umm/Abstract |
| spatial | source · NASA CMR | connector:nasa_cmr@1.0.0 | /umm/SpatialExtent |
| temporal | source · NASA CMR | connector:nasa_cmr@1.0.0 | /umm/TemporalExtents |
| title | source · NASA CMR | connector:nasa_cmr@1.0.0 | /umm/EntryTitle |
| version_label | source · NASA CMR | connector:nasa_cmr@1.0.0 |