AO: fixed primary reference to Graf 2002, in accordance with Pangea

Graf et al., 2002 https://doi.org/10.3189/172756402781816492 DML spatial slope calibration

d18O (IC00OE0202A): interpretation3_scope: '' has been replaced by 'isotope'
d18O (IC00OE0202A): interpretation4_scope: '' has been replaced by 'isotope'

Column 'addReGoycveahSumOFNG', with variable name 'yearEnsemble', was added to the dataset

Graf, W., Oerter, H., Reinwarth, O., Stichler, W., Wilhelms, F., Miller, H. and Mulvaney, R.: Stable-isotope records from Dronning Maud Land, Antarctica, Annals of Glaciology, 35, 195–201, doi:10.3189/172756402781816492, 2002.

Oerter, H., Wilhelms, F., Jung-Rothenhaeusler, F., Goektas, F., Miller, H., Graf, W. and Sommer, S.: Accumulation rates in Dronning Maud Land, Antarctica, as revealed by dielectric-profiling measurements of shallow firn cores, Annals of Glaciology, 30, 27–34, doi:10.3189/172756400781820705, 2000.

d18O (IC00OE0302A): interpretation3_scope: '' has been replaced by 'isotope'
d18O (IC00OE0302A): interpretation4_scope: '' has been replaced by 'isotope'

Column 'addRA04UqC2SHhQlljkn', with variable name 'yearEnsemble', was added to the dataset

d18O (IC00OE0503A): interpretation3_scope: '' has been replaced by 'isotope'
d18O (IC00OE0503A): interpretation4_scope: '' has been replaced by 'isotope'

Column 'addRhZvdDviqDMIndNYf', with variable name 'yearEnsemble', was added to the dataset

d18O (IC00OE1101A): interpretation3_scope: '' has been replaced by 'isotope'
d18O (IC00OE1101A): interpretation4_scope: '' has been replaced by 'isotope'

Column 'addRC5eqIjepc9Ldo2JI', with variable name 'yearEnsemble', was added to the dataset

d18O (IC00OE1201A): interpretation3_scope: '' has been replaced by 'isotope'
d18O (IC00OE1201A): interpretation4_scope: '' has been replaced by 'isotope'

Column 'addRGYwXadOOAYC65mTk', with variable name 'yearEnsemble', was added to the dataset

d18O (IC00OE1301A): interpretation3_scope: '' has been replaced by 'isotope'
d18O (IC00OE1301A): interpretation4_scope: '' has been replaced by 'isotope'