The DOI matches its Crossref record; 3 of the 3 references it cites were found in a registry or an index.
Precipitation changes in the South American Altiplano since 1300 AD reconstructed by tree-rings
Published version of a preprint
Abstract
Abstract. Throughout the second half of the 20th century, the Central Andes has experienced significant climatic and environmental changes characterized by a persistent warming trend, an increase in elevation of the 0 °C isotherm, and sustained glacier shrinkage. These changes have occurred in conjunction with a steadily growing demand for water resources. Given the short span of instrumental hydroclimatic records in this region, longer time span records are needed to understand the nature of climate variability and to improve the predictability of precipitation, a key factor modulating the socio-economic development in the South American Altiplano and adjacent arid lowlands. In this study we present the first quasi-millennial, tree-ring based precipitation reconstruction for the South American Altiplano. This annual (November–October) precipitation reconstruction is based on the Polylepis tarapacana tree-ring width series and represents the closest dendroclimatological record to the Equator in South America. This high-resolution reconstruction covers the past 707 yr and provides a unique record characterizing the occurrence of extreme events and consistent oscillations in precipitation. It also allows an assessment of the spatial and temporal stabilities of the teleconnections between rainfall in the Altiplano and hemispheric forcings such as El Niño-Southern Oscillation. Since the 1930s to present, a persistent negative trend in precipitation has been recorded in the reconstruction, with the three driest years since 1300 AD occurring in the last 70 yr. Throughout the 707 yr, the reconstruction contains a clear ENSO-like pattern at interannual to multidecadal time scales, which determines inter-hemispheric linkages between our reconstruction and other precipitation sensitive records modulated by ENSO in North America. Our reconstruction points out that century-scale dry periods are a recurrent feature in the Altiplano climate, and that the future potential coupling of natural and anthropogenic-induced droughts may have a severe impact on socio-economic activities in the region. Water resource managers must anticipate these changes in order to adapt to future climate change, reduce vulnerability and provide water equitably to all users.
Overview
The claims and statistics of this paper haven’t been checked yet.
Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.
Integrity signals
Registry
Cites
Statistics
Verification
Claims the paper makes
The claims and statistics of this paper haven’t been checked yet.
Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.
Claims other papers make about this one
Each is checked against this paper’s own text: does it say what the citing paper says it does?
Los anillos de crecimiento de Polylepis evidencian una fase húmeda asociada al desarrollo imperial incaico en el transcurso del siglo quince.
“Los anillos de crecimiento de Polylepis, que constituyen el indicador de mayor resolución sobre la historia de las precipitaciones durante el último milenio, evidencian una fase húmeda asociada al desarrollo imperial incaico en el transcurso del siglo quince (Morales et al. 2012).”
From Movimiento e imperialismo inca en los valles de arica (andes 18° S) (2021) · cites this paper as Morales et al. 2012
Paleoclimatic data, based on Mount Sajama's ice core and the Polylepis growth rings, indicates relatively stable conditions since late pre-Hispanic times, with a significantly wetter period in the 19th century A.D.
“Paleoclimatic data, based on Mount Sajama's ice core and the Polylepis growth rings, indicates relatively stable conditions since late pre-Hispanic times, with a significantly wetter period in the 19th century A.D. (Thompson 1995;Liu, Reese, and Thompson 2005;Morales et al. 2012).”
From The longue durée of andean movement networks: case study in the lauca altiplano (2025) · cites this paper as Morales et al. 2012
Self-check
Percentages, sums and reported differences re-computed from the paper’s own numbers.
The self-check needs the paper’s full text.
Citations
Cites
Application of the cross wavelet transform and wavelet coherence to geophysical time series
Grinsted, A., Moore, J. C., & Jevrejeva, S. (2004) · Nonlinear Processes in Geophysics · doi:10.5194/npg-11-561-2004 · Cited by 6,285
Long-Term Aridity Changes in the Western United States
Cook, E. R., Woodhouse, C. A., Eakin, C. M., Meko, D. M., & Stahle, D. W. (2004) · Science · doi:10.1126/science.1102586 · Cited by 1,580 · cited 3×
“The wavelet (WT) power spectrum (Morlet) of the annual (November–October) precipitation reconstruction in the Altiplano region (a), and the cross-wavelet transform (XWT) between the precipitation reconstruction in the Altiplano and the first principal component of the North American Drought Atlas (NADA) as an ENSO pro…”
BackgroundMethodInfluentialInterdecadal modulation of El Niño amplitude during the past millennium
Li, J., Xie, S.-P., Cook, E. R., Huang, G., D'Arrigo, R., Liu, F., Ma, J., & Zheng, X.-T. (2011) · Nature Climate Change · doi:10.1038/nclimate1086 · Cited by 349
Flagged first, then by citations
Research works printed but not linked: 75
- Aceituno, P. and Montecinos, A.: Circulation anomalies associated with dry and wet periods in the South American Altiplano, in: Preprints 4th Int. Conf. on Southern Hemisphere Meteorology and Oceanography, Hobart, Australia, 29 March–2 April, 330–331, 1993.
- Binford, M. W., Kolata, A. L., Brenner, M., Janusek, J. W., Seddon, M. T., Abbott, M. B., and Jason, H.: Climate variation and the rise and fall of an Andean civilization, Quaternary Res., 47, 235–248, 1997. · DOI
- Bird, W. B., Abbott, M. B., Vuille M., Rodbell, D. T., Stansella, N. D., and Rosenmeier, M. F.: A 2,300-year-long annually resolved record of the South American summer monsoon from the Peruvian Andes, P. Natl. Acad. Sci. USA, 108, 8583–8588, https://doi.org/10.1073/pnas.1003719108, 2011. · DOI
- Boninsegna, J. A., Argollo, J., Aravena, J. C., Barichivich, J., Christie, D. A., Ferrero, M. E., Lara, A., Le Quesne, C., Luckman, B. H., Masiokas, M., Morales, M. S., Oliveira, J. M., Roig, F., Srur, A., and Villalba, R.: Dendroclimatological Reconstructions in South America: A review. Palaeogeogr. Palaeocl., 281, 210–228, 2009. · DOI
- Boucher, É., Guiot, J., and Chapron, E.: A millennial multi-proxy reconstruction of summer PDSI for Southern South America, Clim. Past, 7, 957–974, https://doi.org/10.5194/cp-7-957-2011, 2011. · DOI
- Bradley, R. S., Vuille, M., Hardy, D., and Thompson, L. G.: Low latitude ice cores record Pacific sea surface temperatures. Geophys. Res. Lett., 30, 1174, https://doi.org/10.1029/2002GL016546, 2003. · DOI
- Bradley, R. S., Vuille, M., Diaz, H. F., and Vergara, W.: Threats to water supplies in the tropical Andes, Science, 312, 1755–1756, 2006. · DOI
- Braun, G.: The use of digital methods in assessing forest patterns in an Andean environment: the Polylepis example, Mt. Res. Dev., 17, 253–262, 1997. · DOI
- Carrasco, J. F., Osorio R., and Casassa, G.: Secular trend of the equilibrium-line altitude on the western side of the southern Andes, derived from radiosonde and surface observations, J. Glaciol., 54, 538–550, 2008. · DOI
- Christie, D. A., Lara, A., Barichivich, J., Villalba, R., Morales, M. S., and Cuq, E.: El Niño-Southern Oscillation signal in the world's high-elevation tree-ring chronologies from the Altiplano, Central Andes, Palaeogeogr. Palaeocl., 281, 309–319, 2009. · DOI
- Christie, D. A., Boninsegna, J. A., Cleaveland, M. K., Lara, A., Le-Quesne, C., Morales, M. S., Mudelsee, M., Stahle, D., and Villalba, R.: Aridity changes in the Temperate-Mediterranean transition of the Andes since AD 1346 reconstructed from tree-rings, Clim. Dynam., 36, 1505–1521, 2011. · DOI
- Cook, E. R.: A time series analysis approach to tree-ring standardization, Ph.D. thesis, The University of Arizona, Tucson, Arizona, 171 pp., 1985.
- Cook, E. R., Seager, R., Cane, M., and Stahle, D. W.: North American drought: Reconstructions, causes, and consequences, Earth-Sci. Rev., 81, 93–134, 2007. · DOI · Paper page
- Cooley, W. W. and Lohnes, P. R.: Multivariate data analysis, John Wiley & Son, New York, 1971.
- Deser, C., Alexander, M. A., Xie, S-P., and Phillips, A. S.: Sea surface temperature variability: Patterns and mechanisms, Annu. Rev. Mar. Sci., 2, 115–143, 2010. · DOI · Paper page
- Draper, N. R. and Smith, H.: Applied Regression Analysis, John Wiley & Son, New York, 1981.
- Francou, B., Vuille, M., Wagnon, P., Mendoza, J., and Sicart, J. E.: Tropical climate change recorded by glacier in the central Andes during the last decades of the twentieth century: Chacaltaya, Bolivia, 16° S, J. Geophys. Res., 108, 4154, https://doi.org/10.1029/2002JD002959, 2003. · DOI
- Garcia, M., Raes, D., and Jacobsen, S. E.: Reference evapotranspiration and crop coefficient of quinoa (Chenopodium quinoa Willd) in the Bolivian Altiplano, Agr. Water Manage., 60, 119–134, 2003. · DOI
- Garcia, M., Raes, D., Jacobsen, S. E., and Michel, T.: Agroclimatic constraints for rainfed agriculture in the Bolivian Altiplano, J. Arid. Environ., 71, 109–121, 2007. · DOI
- Garreaud, R. and Aceituno, P.: Interannual rainfall variability over the South American Altiplano, J. Climate, 14, 2779–2789, 2001. · DOI
- Garreaud, R., Vuille, M., and Clement, C.: The climate of the Altiplano: Observed current conditions and mechanisms of past changes, Palaeogeogr. Palaeocl., 194, 5–22, 2003. · DOI · Paper page
- Garreaud, R. D., Vuille, M., Compagnucci, R., and Marengo, J.: Present day South American climate, Palaeogeogr. Palaeocl., 281, 180–195, 2009. · DOI
- Gil Montero, R. and Villalba, R.: Tree rings as a surrogate for economic stress – an example from the Puna of Jujuy, Argentina in the 19th century, Dendrochronologia, 22, 141–147, 2005. · DOI
- Gioda, A. and Prieto, R.: Histoire des sécheresses andines: Potosí, El Niño et le Petit Age Glaciaire, La Météorologie, 8, 33–42, 1999. · DOI
- Gordon, G.: Verification of dendroclimatic reconstructions, in: Climate from Tree Rings, edited by: Hughes, M. K., Kelly, P. M., Pilcher, J. R., and LaMarche Jr., V. C., Cambridge University Press, 58–61, 1982.
- Gosling, W. D., Hanselman, J. A., Knox, C., Valencia, B. G., and Bush, M. B.: Long-term drivers of change in Polylepis woodland distribution in the central Andes, J. Veg. Sci., 20, 1041–1052, 2009. · DOI
- Houston, J.: Groundwater recharge through an alluvial fan in the Atacama Desert, northern Chile: mechanisms, magnitudes and causes, Hydrol. Process., 16, 3019–3035, 2002. · DOI
- Jansen, E., Overpeck, J., Briffa, K. R., Duplessy, J. C., Joos, F., Masson-Delmotte, V., Olago, D., Otto-Bliesner, B., Peltier, W. R., Rahmstorf, S., Ramesh, R., Raynaud, D., Rind, D., Solomina, O., Villalba R., and Zhang, D.: Palaeoclimate, in: Climate Change 2007: The Physical Science Basis. Contribution of Working Group I to the Fourth Assessment Report of the Intergovernmental Panel on Climate Change, edited by: Solomon, S., Qin, D., Manning, M., Chen, Z., Marquis, M., Averyt, K. B., Tignor, M., and Miller, H. L., Cambridge University Press, United States, 433–497, 2007.
- Jomelli, V., Favier, V., Rabatel, A., Brunstein, D., Hoffmann, G., and Francou, B.: Fluctuations of glaciers in the tropical Andes over the last millennium and palaeoclimatic implications: A review, Palaeogeogr. Palaeocl., 281, 269–282, 2009. · DOI
- Jomelli, V., Khodri, M., Favier, V., Brunstein, D., Ledru, M.-P., Wagnon, P., Blard, P.-H., Sicart, J.-E., Braucher, R., Grancher, D., Bourlès, D. L., Braconnot, P., and Vuille, M.: Irregular tropical glacier retreat over the Holocene epoch driven by progressive warming, Nature, 474, 196–199, 2011. · DOI
- Kistler, R., Kalnay, E., Collins, W., Saha, S., White, G., Woollen, J., Chelliah, M., Ebisuzaki, W., Kanamitsu, M., Kousky, V., Van den Dool, H., Jenne, R., and Fiorino, M.: The NCEP-NCAR 50-year reanalysis: monthly means CD-ROM and documentation, B. Am. Meteorol. Soc., 82, 247–267, 2001. · DOI
- Le Quesne, C., Acuña, C., Boninsegna, J. A., Rivera, A., and Barichivich, J.: Long-term glacier variations in the Central Andes of Argentina and Chile, inferred from historical records and tree-ring reconstructed precipitation, Palaeogeogr. Palaeocl., 281, 334–344, 2009. · DOI
- Lenters, J. D. and Cook, K. H.: On the origin of the Bolivian High and related circulation features of the South American climate, J. Atmos. Sci., 54, 656–677, 1997. · DOI
- Lenters, J. D. and Cook, K. H.: Summertime Precipitation Variability over South America: Role of the Large-Scale Circulation, Mon. Weather Rev., 127, 409–431, 1999. · DOI
- Liu, K. B., Reese, C. A., and Thompson, L. G.: Ice-core pollen record of climatic changes in the central Andes during the last 400 yr, Quaternary Res., 64, 272–278, 2005. · DOI · Paper page
- Lohmann, G.: Linking data and models, Past Global Changes PAGES, 16, 4–5, 2008. · DOI
- Meko, D. M.: Dendroclimatic reconstruction with time varying subsets of tree indices, J. Climate, 10, 687–696, 1997. · DOI
- Messerli, B., Grosjean, M., and Vuille, M.: Water availability, protected areas, and natural resources in the Andean desert Altiplano, Mt. Res. Dev., 17, 229–238, 1997. · DOI
- Messerli, B., Viviroli, D., and Weingartner, R.: Mountains of the world: Vulnerable water towers for the 21st century, Ambio, 13, 29–34, 2004. · DOI
- Michaelsen, J.: Cross-validation in statistical climate forecast models, J. Clim. Appl. Meteorol., 26, 1589–1600, 1987. · DOI
- Minvielle, M. and Garreaud, R.: Projecting rainfall changes over the South American Altiplano, J. Climate, 24, 4577–4583, 2011. · DOI
- Mitchell, T. D. and Jones, P. D.: An improved method of constructing a database of monthly climatological observations and associated high-resolution grids, Int. J. Climatol., 25, 693–712, 2005. · DOI
- Morales, M. S., Villalba, R., Grau, H. R., and Paolini, L.: Rainfall controlled tree growth in high elevation subtropical treelines, Ecology, 85, 3080–3089, 2004. · DOI
- Núñez, L., Grosjean, M., and Cartagena, I.: Human occupations and climate change in the Puna de Atacama, Chile, Science, 298, 821–824, 2002. · DOI
- Rabatel, A., Machaca, A., Francou, B., and Jomelli, V.: Glacier recession on Cerro Charquini (16°), Bolivia, since the maximum of the Little Ice Age (17th. century), J. Glaciol., 52, 110–118, 2006. · DOI
- Ramirez, E., Francou, B., Ribstein, P., Descloîtres, M., Guérin, R., Mendoza, J., Gallaire, R., Pouyaud, B., and Jordan, E.: Small glaciers disappearing in the tropical Andes. A case study in Bolivia: Glacier Chacaltaya (16° S), J. Glaciol., 47, 187–194, 2001. · DOI
- Randall, D. A., Wood, R. A., Bony, S., Colman, R., Fichefet, T., Fyfe, J., Kattsov, V., Pitman, A., Shukla, J., Srinivasan, J., Stouffer, R. J., Sumi, A., and Taylor, K. E.: Climate Models and Their Evaluation, in: Climate Change 2007: The Physical Science Basis. Contribution of Working Group I to the Fourth Assessment Report of the Intergovernmental Panel on Climate Change, edited by: Solomon, S., Qin, D., Manning, M., Chen, Z., Marquis, M., Averyt, K. B., Tignor, M., and Miller, H. L., Cambridge University Press, United States, 489–662, 2007.
- Rodionov, S. N.: A sequential algorithm for testing climate regime shifts, Geophys. Res. Lett., 31, L09204, https://doi.org/10.1029/2004GL019448, 2004. · DOI
- Schulman, E.: Dendroclimatic changes in semiarid America, Tucson, University of Arizona Press, 1956.
- Solíz, C., Villalba, R., Argollo, J., Morales, M. S., Christie, D. A., Moya, J., and Pacajes, J.: Spatio-temporal variations in Polylepis tarapacana radial growth across the Bolivian Altiplano during the 20th century, Palaeogeogr. Palaeocl., 281, 296–330, 2009. · DOI
- Smith, T., Reynolds, R., Peterson, T. C., and Lawrimore, J.: Improvements to NOAA's Historical Merged Land-Ocean Surface Temperature analysis (1880–2006), J. Climate, 21, 2283–2296, 2008. · DOI
- Stokes, M. A. and Smiley, T. L.: An introduction to tree-ring dating, University of Chicago Press, Chicago, 1968.
- Sutton, R. T. and Hodson, D. L. R.: Influence of the ocean on North Atlantic climate variability 1871–1999, J. Climate, 16, 3296–3313, 2003. · DOI
- Tandeter, E.: Crisis in Upper Peru, 1800–1805, HAHR-Hisp. Am. Hist. R., 71, 35–71, 1991. · DOI
- Tencer, B., Rusticucci, M., Jones P., and Lister, D.: A Southeastern South American Daily Gridded Dataset of Observed Surface Minimum and Maximum Temperature for 1961–2000, B. Am. Meteorol. Soc., 92, 1339–1346, https://doi.org/10.1175/2011BAMS3148.1, 2011. · DOI
- Thompson, L., Mosley-Thompson, E., Bolzan., J. F. and Koci, B. R.: A 1500-Year Record of Tropical Precipitation in Ice Cores from the Quelccaya Ice Cap, Peru, Science, 229, 971–973, 1985. · DOI · Paper page
- Thompson, L., Mosley-Thompson, E., Dansgaard, W., and Grootes, P. M.: The Little Ice Age as Recorded in the Stratigraphy of the Tropical Quelccaya Ice Cap, Science, 234, 361–364, https://doi.org/10.1126/science.234.4774.361, 1986. · DOI
- Thompson, L. G., Mosley-Thompson, E., Davis, M. E., Lin, P. N., Henderson, K., and Mashiotta, T. A.: Tropical glacier and ice core evidence of climate change on annual to millennial time scales, Climatic Change, 59, 137–155, 2003. · DOI
- Thompson, L. G., Mosley-Thompson, E., Brecher, H., Davis, M., León, B., Les, D., Lin, P. N., Mashiotta, T., and Mountain, K.: Abrupt tropical climate change: Past and present, P. Natl. Acad. Sci., 103, 10536–10543, 2006. · DOI
- Torrence, C. and Compo, G.P.: A practical guide to wavelet analysis, B. Am. Meteorol. Soc., 79, 61–78, 1998. · DOI
- Torrence, C. and Webster, P.: Interdecadal changes in the ENSO-Monsoon system, J. Climate, 12, 2679–2690, 1999. · DOI
- Trenberth, K. E., Jones, P. D., Ambenje, P., Bojariu, R., Easterling, D., Klein Tank, A., Parker, D., Rahimzadeh, F., Renwick, J. A., Rusticucci, M., Soden, B., and Zhai, P.: Observations: Surface and Atmospheric Climate Change, in: Climate Change 2007: The Physical Science Basis. Contribution of Working Group I to the Fourth Assessment Report of the Intergovernmental Panel on Climate Change, edited by: Solomon, S., Qin, D., Manning, M., Chen, Z., Marquis, M., Averyt, K. B., Tignor, M., and Miller, H. L., Cambridge University Press, United States, 235–336, 2007.
- Urrutia, R. and Vuille, M.: Climate change projections for the tropical Andes using a regional climate model: Temperature and precipitation simulations for the end of the 21st century, J. Geophys. Res., 114, D02108, https://doi.org/10.1029/2008JD011021, 2009. · DOI
- Vautard, R. and Ghil, M.: Singular spectrum analysis in nonlinear dynamics, with applications to paleoclimatic time series, Physica D, 35, 395–424, 1989. · DOI
- Villalba, R., Grosjean, M., and Kiefer, T.: Long-term multiproxy climate reconstructions and dynamics in South America (LOTRED-SA): State of the art and perspectives, Palaeogeogr. Palaeocl., 281, 309–319, 2009. · DOI
- Villalba, R., Luckman, B. H., Boninsegna, J., D'Arrigo, R. D., Lara, A., Villanueva-Diaz J., Masiokas, M., Argollo, J., Solíz, C., LeQuesne, C., Stahle, D., Roig, F., Aravena, J. C., Wiles, G., Jacoby, G., Hartsough, P., Wilson, R. J. S., Watson, E., Cook, E. R., Cerano-Paredes, J., Therrell, M., Cleaveland, M., Morales, M. S., Moya, J., Pacajes, J., Massacchesi, G., Biondi, F., Urrutia, R., and Martinez Pastur, G.: Dendroclimatology from regional to continental scales: Understanding regional processes to reconstruct large-scale climatic variations across the Western Americas, in: Dendroclimatology: Progress and Prospects, edited by: Hughes, M., Swetnam, T., and Diaz, H., Springer, Dordrecht, Heidelberg, London, New York, 175–227, 2011. · DOI
- Viviroli, D., Weingartner, R., and Messerli, B.: Assessing the hydrological significance of the world's mountains, Mt. Res. Dev., 23, 32–40, 2003. · DOI
- Vuille, M.: Atmospheric circulation over the Bolivian Altiplano during dry and wet periods and extreme phases of the Southern Oscillation, Int. J. Climatol., 19, 1579–1600, 1999. · DOI
- Vuille, M. and Bradley, R.: Mean annual temperature trends and their vertical structure in the tropical Andes, Geophys. Res. Lett., 27, 3885–3888, 2000. · DOI
- Vuille, M. and Keimig, F.: Interannual variability of summertime convective cloudiness and precipitation in the central Andes derived from ISCCP-B3 data, J. Climate, 17, 3334–3348, 2004. · DOI
- Vuille, M., Bradley, R. S., and Keimig, F.: Interannual climate variability in the Central Andes and its relation to tropical Pacific and Atlantic forcing, J. Geophys. Res., 105, 12447–12460, 2000. · DOI
- Vuille, M., Bradley, R., Werner, M., and Keimig, F.: 20th century climate change in the tropical Andes: observations and model results, Climatic Change, 59, 75–99, 2003. · DOI
- Vuille, M., Francou, B., Wagnon, P., Juen, I., Kaser, G., Mark, B., and Bradley, R.: Climate change and tropical Andean glaciers: Past, present and future, Earth-Sci Rev., 89, 79–96, 2008. · DOI
- Weisberg, S.: Applied Linear Regression, John Wiley & Son, New York, 1985.
- Wigley, T. M. L., Briffa, K. R., and Jones, P. D.: On the average value of correlated time series, with applications in dendroclimatology and hydrometeorology, J. Clim. Appl. Meterol., 23, 201–213, 1984. · DOI
Cited by
Sorted by citations
Marsh, E. J., Bruno, M. C., Fritz, S. C., Baker, P., Capriles, J. M., & Hastorf, C. A. (2018) · Radiocarbon · doi:10.1017/rdc.2018.16 · Cited by 109
Nielsen, A. E., Berenguer R., J., & Pimentel, G. (2019) · Quaternary International · doi:10.1016/j.quaint.2018.09.044 · Cited by 41
Saintenoy, T., González Estefane, F., & Uribe Rodríguez, M. (2019) · Latin American Antiquity · doi:10.1017/laq.2019.22 · Cited by 16
Movimiento e imperialismo inca en los valles de arica (andes 18° S)
Mendez-Quiros Aranda, P., & Saintenoy, T. (2021) · Latin American Antiquity · doi:10.1017/laq.2020.100 · Cited by 6
The longue durée of andean movement networks: case study in the lauca altiplano
Saintenoy, T., Lima, P., Uribe, M., Carvajal, F., González, C., Crespo, M., Malvarez, M. F., Mendez-Quiros, P., Jofré, D., & González, F. (2025) · Journal of Field Archaeology · doi:10.1080/00934690.2025.2534236 · Cited by 1
Metadata
- Authors
- Morales, M. S., Christie, D. A., Villalba, R., Argollo, J., Pacajes, J., Silva, J. S., Alvarez, C. A., Llancabure, J. C., & Soliz Gamboa, C. C.
- Venue
- Climate of the Past
- Publisher
- Copernicus GmbH
- Published
- 2012-03-30
- Volume
- 8
- Issue
- 2
- Pages
- 653-666
- ISSN
- 1814-9332
- Cited by
- 112
- References
- 3
- Language
- en
About these checks
Registry, retraction, Cites and statistics results are computed, not judged, with one exception: a printed reference that no index lists is read once by a model before it counts as a citation error. Claims are extracted by a model and kept only when their quote appears verbatim in the text; each cited source is then checked, with a model’s help, for whether it says what the claim relies on. Those verdicts can be wrong — read the claim’s quote and the cited source before relying on one.
Statistics and arithmetic are recomputed, not judged.
Confidence bands are shown only for fields calibrated on our annotated test set. None is calibrated yet, so no band is shown.
What counts as a claim ›How we measure confidence ›How we check this ›
Are you an author, or do you see a problem with this page? Request a review