I intend to create a long term melt record on a glacier surface. What are parameters required to efficiently calculate the same using satellite, weather station observations & reanalysis datasets (ERA-INTERIM)? I need the record to be of at least 100 years & therefore any or a combination of these datasets needs to be used for the same!

I have three cores from coastal Antarctica, which have frequent melt layers. I intend to calculate the melting that has happened at the surface in the past by using various climatic parameters (reanalysis data sets) and satellite data (e.g. Microwave Datasets) to quantify & /or ascertain a melting event at a certain point of time!

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    $\begingroup$ Hello, and welcome to Stack Exchange. It isn't clear to me what you're asking; are you looking for data sources, or variables that you might find in all such data sources, or something else? $\endgroup$ May 15, 2018 at 15:45
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    $\begingroup$ It all depends on the accuracy and what do you want it for. It depends also on the glacier you are interested in. In a small one the downscaling of weather parameter is a challenge. If it doesn't count with a good record of extent you will need to couple the melt model with a dynamic one (a complicated business). You should explain better what do you want it for. The answers can range from a very simple degree-day model on a steady-state glacier (that would require only a current terrain model, a lapse rate and temperature record), to sophisticated coupled dynamic and energy balance models. $\endgroup$ May 15, 2018 at 17:10
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    $\begingroup$ Can you please elaborate more? How was melt derived from the ice core? Ice cores are usually obtained from areas where there is no melt at all, otherwise water percolation mix information from different points in time rendering the core useless for reconstruction of climatic variables. I would recommend that you edit the question adding a thoughtful explanation of what you want to do. Otherwise it is too broad, the parameters depend on how you model the melt. $\endgroup$ May 15, 2018 at 18:21
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    $\begingroup$ Well what you said about ice coring locations is partially true. When you want to study the coastal regions of antarctica, cores with melt layers are a common things. The coring locations is primarily dependant upon your objectives! As for ice cores, the melting at a period of time can be easily calculated by measuring the volume of melt layers and percolation capillaries, if any. $\endgroup$
    – Rahul
    May 15, 2018 at 18:42
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    $\begingroup$ Ok, it makes more sense now. Are the cores obtained from an ice divide? Or have them been advected downglacier? Is there historic data available for those locations to constrain elevation changes in the glacier surface? If not satellite data won't take you as far as 100 years, and you will need to model the dynamics that would add a whole new layer of complication (Unless you are happy to extrapolate thickening/thinning rates of the last few decades all the way back to the early 1900's) $\endgroup$ May 15, 2018 at 19:05


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