Ow are isotopes used to interpret the climatic history of Sisimiut in Southwest Greenland

Please include graphs or diagrams where needed, and please refer to lakes in the Sisimiut region such as Sisi 15
Please use some of these as references:
Erbs-Hansen, D. R., Knudsen, K. L., Olsen, J., Lykke-Andersen, H., Underbjerg, J. A., Sha, L. 2013. Paleoceanographical development off Sisimiut, West Greenland, during the mid and late Holocene: A multiproxy study.Marine Micropaleontology, 102, 79a 97.
Fritz, S. C., Anderson, N. J. 2013. The relative influences of climate and catchment processes on Holocene lake development in glaciated regions.Journal of Paleolimnology 49, 349a 362.
Kemp, A. C., Vane, C. H., Horton, B. P., Culver, S. J. 2010. Stable carbon isotopes as potential sea-level indicators in salt marshes, North Carolina, USA.The Holocene, 20, (4) 623a 636.
KA¶nitzer, S. F., Leng, M. J., Davies, S. J., Stephenson, M. H. 2012. An assessment of geochemical preparation methods prior to organic carbon concentration and carbon isotope ratio analyses of fine-grained sedimentary rocksKA¶nitzer.American Geophysical Union 1-12.
Lamb, A. L., Wilson, G. P., Leng, M. J. 2006. A review of coastal palaeoclimate and relative sea-level reconstructions using d13C and C/N ratios in organic material.Earth-Science Reviews, 75, 29a 57.
Leng, M. J., & Anderson, N. J. 2014. The influence of Holocene climate and catchment ontogeny on organic carbon cycling in low-Arctic lakes of SW Greenland.EGU General Assembly 2014. Vienna: Geophysical Research Abstracts. Vol. 16, EGU2014-2929, .
Leng, M. J., Anderson, N. J. 2003. Isotopic variation in modern lake waters from western Greenland.The Holocene 13, 4, 605a 611.
Leng, M. J., Marshall, J. D. 2004. Palaeoclimate interpretation of stable isotope data from lake sediment archives.Quaternary Science Reviews, 23, 811a 831.
Leng, M. J., Wagner, B. Anderson, B. N. J., Bennike, O., Woodley, E. 2012. Deglaciation and catchment ontogeny in coastal south-west Greenland: implications for terrestrial and aquatic carbon cycling.Journal of Quaternary Science, 27, (6) 575a 584.