# Krusic - Ura-Dhur Composite - PCSN - ITRDB BT021 #----------------------------------------------------------------------- # World Data Service for Paleoclimatology, Boulder # and # NOAA Paleoclimatology Program # National Centers for Environmental Information (NCEI) #----------------------------------------------------------------------- # Template Version 3.0 # Encoding: UTF-8 # NOTE: Please cite original publication, online resource and date accessed when using these data, # If there is no publication information, please cite investigator, title, online resource and date accessed. # # Online_Resource: https://www.ncdc.noaa.gov/paleo/study/18320 # Description: NOAA Landing Page of study # Online_Resource: https://www1.ncdc.noaa.gov//pub/data/paleo/treering/chronologies/asia/bt021-noaa.crn # Description: Chronology - NOAA Template File # # Original_Source_URL: https://www1.ncdc.noaa.gov/pub/data/paleo/treering/chronologies/asia/bt021.crn # Description: Chronology - Tucson Decadal File # # Archive: Tree Ring # # Dataset_DOI: # # Parameter_Keywords: ring width #------------------- # Contribution_Date # Date: 2015-04-01 #------------------- # File_Last_Modified_Date # Date: 2018-12-19 #------------------- # Title # Study_Name: Krusic - Ura-Dhur Composite - PCSN - ITRDB BT021 #------------------- # Investigators: Krusic, P.J.; Cook, E.R.; Dukpa, D. #------------------- # Description_Notes_and_Keywords # Description: NOAA Template Chronology file added 2018-12-19. #------------------- # Publication # Authors: Krusic, P.J., E.R. Cook, D. Dukpa, A. Putnam, S. Rupper, and J. Schaefer # Journal_Name: Geophysical Research Letters # Published_Title: 638 years of summer temperature variability over the Bhutanese Himalaya # Published_Date_or_Year: 2015 # Volume: # Pages: # Report_Number: # DOI: 10.1002/2015GL063566 # Full_Citation: # Abstract: High-resolution tree-ring reconstructions from the Himalaya provide essential context for assessing impacts of future climate change on regional water reserves and downstream agriculture. Here we evaluate a small network of tree-ring chronologies from Bhutan to produce a 638-year summer temperature reconstruction, from 1376 - 2013 CE. Relative to the 1950 - 2013 CE average summer temperature three prominent cold periods stand out, 2 in the mid 15th century, and one in the late 17th century. The warmest period began in the first decade of the 21st century coinciding with the timing of general glacier recession in the eastern Himalaya that continues to the present. The Bhutan temperature reconstruction exhibits a significant correlation to known volcanic eruptions (p = 97%) and anomalously cold periods appear to align with solar irradiance minima in the 15th, late 17th and early 19th centuries, implying a link between solar variability and decadal-scale temperature variability. #------------------- # Site_Information # Site_Name: Ura-Dhur Composite # Location: Bhutan # Northernmost_Latitude: 27.4223 # Southernmost_Latitude: 27.4223 # Easternmost_Longitude: 90.9675 # Westernmost_Longitude: 90.9675 # Elevation: 3268 #------------------- # Data_Collection # Collection_Name: BT021 # Earliest_Year: 1280 # Most_Recent_Year: 2013 # Time_Unit: AD # Notes: #------------------- # Species # Species_Name: Picea spinulosa (Griff.) Beissn. # Common_Name: Sikkim spruce # Tree_Species_Code: PCSN #------------------- # Chronology_Information # Chronology: #--------------------- # Variables # variables format: shortname var components: what,material,error,units,season,archive,detail,method, C or N for Char or Numeric data,additional information ## age_CE age,,,year Common Era,,tree ring,,,N, ## trsgi tree ring standardized growth index,,,,,tree ring,composited,standard,N, ## numsamp number of samples,,,count,,tree ring,,,N, # #-------------------- # Data: # Missing_Values: -999 age_CE trsgi numsamp 1280 889 1 1281 927 1 1282 883 1 1283 1129 1 1284 1137 2 1285 1109 2 1286 1156 2 1287 1154 2 1288 1145 2 1289 1088 2 1290 1129 2 1291 1152 2 1292 980 2 1293 923 2 1294 931 2 1295 881 2 1296 936 2 1297 1014 2 1298 792 2 1299 1043 2 1300 1172 2 1301 972 2 1302 909 2 1303 858 2 1304 989 2 1305 1037 2 1306 993 2 1307 917 2 1308 880 2 1309 907 2 1310 964 2 1311 899 2 1312 946 2 1313 1001 2 1314 1019 2 1315 1037 2 1316 1018 2 1317 1022 2 1318 1004 2 1319 914 2 1320 929 2 1321 1069 2 1322 1009 2 1323 939 2 1324 1083 2 1325 1022 2 1326 883 2 1327 908 2 1328 942 2 1329 936 2 1330 905 2 1331 988 2 1332 893 2 1333 982 2 1334 1011 2 1335 1068 2 1336 968 2 1337 1067 2 1338 1084 2 1339 1045 2 1340 1112 2 1341 1101 2 1342 1013 2 1343 1060 2 1344 1054 2 1345 1089 2 1346 1035 2 1347 1039 2 1348 1105 2 1349 1146 2 1350 1210 2 1351 1047 2 1352 1073 2 1353 1028 2 1354 858 3 1355 799 3 1356 972 3 1357 1109 3 1358 1110 3 1359 1122 3 1360 1136 3 1361 1097 3 1362 1060 3 1363 1091 3 1364 1005 3 1365 1024 3 1366 968 3 1367 942 3 1368 865 3 1369 906 3 1370 886 4 1371 918 4 1372 1017 4 1373 1058 4 1374 1044 4 1375 1047 4 1376 1020 5 1377 1018 5 1378 993 5 1379 1034 5 1380 1083 5 1381 1173 5 1382 1089 5 1383 1087 5 1384 1101 5 1385 1131 5 1386 953 5 1387 1097 5 1388 1300 5 1389 1420 5 1390 1254 7 1391 1308 8 1392 1249 8 1393 1153 8 1394 895 8 1395 726 8 1396 987 8 1397 1147 8 1398 1032 8 1399 1052 8 1400 1057 8 1401 1159 8 1402 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