@article{fdi:010068308, title = {{R}econstructing the mass balance of {B}rewster {G}lacier, {N}ew {Z}ealand, using {MODIS}-derived glacier-wide albedo}, author = {{S}irguey, {P}. and {S}till, {H}. and {C}ullen, {N}. {J}. and {D}umont, {M}. and {A}rnaud, {Y}ves and {C}onway, {J}. {P}.}, editor = {}, language = {{ENG}}, abstract = {{I}n {N}ew {Z}ealand, direct measurements of mass balance are sparse due to the inaccessibility of glaciers in the {S}outhern {A}lps and the logistical difficulties associated with maintaining a mass balance record. {I}n order to explore the benefit of remotely sensed imaging to monitor mass balance in the {S}outhern {A}lps, this research assesses the relationship between measurements of glacier surface albedo derived from {M}oderate {R}esolution {I}maging {S}pectroradiometer ({MODIS}) and mass balance observations using the glaciological method on {B}rewster {G}lacier over the 2005-2013 period. {W}e confirm that minimum glacier-wide albedo is a reliable predictor for annual mass balance in this maritime environment ({R}-2 = 0.93). {F}urthermore, we show that regular monitoring of glacier-wide albedo enables a new metric of winter accumulation to be derived, namely the cumulative winter albedo, which is found to correlate strongly with winter mass balance ({R}-2 = 0.88), thus enabling the reconstruction of separate winter and summer mass balance records. {T}his allows the mass balance record for {B}rewster {G}lacier to be extended back to the start of {MODIS} observations in 2000 and to confirm that the annual balance of {B}rewster {G}lacier is largely controlled by summer balance ({R}-2 = 92 %). {A}n application of the extended record is proposed whereby the relationship between mass balance and the photographic record of the end-of-summer snowline altitude is assessed. {T}his allowed the annual balance record of {B}rewster {G}lacier to be reconstructed over the period 1977-2013, thus providing the longest record of mass balance for a glacier in {N}ew {Z}ealand. {O}ver the 37-year period, our results show that {B}rewster {G}lacier gained a significant mass of up to 14.5 +/- 2.7 m w.e. by 2007. {T}his gain was offset by a marked shift toward negative balances after 2008, yielding a loss of 5.1 +/- 1.2 m w.e., or 35% of the gain accumulated over the previous 30 years. {T}he good correspondence between mass balance of {B}rewster {G}lacier and the phase of the {P}acific ({I}nter-){D}ecadal {O}scillation ({PDO}/{IPO}), associated with the fast terminus retreat observed between 1978 and 1998, strongly suggests that the observed mass gain of {B}rewster {G}lacier since 1977 is only offsetting a longer sequence of dominantly negative balances.}, keywords = {{NOUVELLE} {ZELANDE}}, booktitle = {}, journal = {{C}ryosphere}, volume = {10}, numero = {5}, pages = {2465--2484}, ISSN = {1994-0416}, year = {2016}, DOI = {10.5194/tc-10-2465-2016}, URL = {https://www.documentation.ird.fr/hor/fdi:010068308}, }