Method for contactlessly determining a temperature of a surface, in particular for contactlessly determining a temperature distribution on a surface, by means of an infrared measurement system, wherein the infrared measurement system includes at least: an infrared detector array with a detector array substrate and • with a plurality of measurement pixels, each connected to the detector array substrate with a first thermal conductivity λ MP, wherein the measurement pixels are sensitive to infrared radiation and provide in each case a measurement signal for determining a temperature measurement value T MP that is dependent on an intensity of the incident infrared radiation, and • with a plurality of reference pixels, which are each connected to the detector array substrate with a second thermal conductivity λ BP and provide in each case a measurement signal for determining a temperature measurement value T BP, wherein the method comprises at least the following steps: • determining the temperature measurement values T BP of a plurality of reference pixels; • determining the temperature measurement values T MP of a plurality of measurement pixels; • correcting temperature measurement values T MP by in each case a pixel-associated temperature drift component T drift, wherein the reference pixels are implemented as blind pixels which are substantially insensitive to infrared radiation, wherein the second thermal conductivity λ BP is greater than the first thermal conductivity λ MP, characterized in that the temperature drift components T drift by which the temperature measurement values T MP are displaced in dependence on time are determined using temperature measurement values T BP, wherein a temperature drift behaviour m BP of the reference pixels is determined from temperature measurement values T BP of the reference pixels in order to determine the temperature drift components T drift. an infrared detector array with a detector array substrate and • with a plurality of measurement pixels, each connected to the detector array substrate with a first thermal conductivity λ MP, wherein the measurement pixels are sensitive to infrared radiation and provide in each case a measurement signal for determining a temperature measurement value T MP that is dependent on an intensity of the incident infrared radiation, and • with a plurality of reference pixels, which are each connected to the detector array substrate with a second thermal conductivity λ BP and provide in each case a measurement signal for determining a temperature measurement value T BP, • with a plurality of measurement pixels, each connected to the detector array substrate with a first thermal conductivity λ MP, wherein the measurement pixels are sensitive to infrared radiation and provide in each case a measurement signal for determining a temperature measurement value T MP that is dependent on an intensity of the incident infrared radiation, and • with a plurality of reference pixels, which are each connected to the detector array substrate with a second thermal conductivity λ BP and provide in each case a measurement signal for determining a temperature measurement value T BP, wherein the method comprises at least the following steps: • determining the temperature measurement values T BP of a plurality of reference pixels; • determining the temperature measurement values T MP of a plurality of measurement pixels; • correcting temperature measurement values T MP by in each case a pixel-associated temperature drift component T drift, • determining the temperature measurement values T BP of a plurality of reference pixels; • determining the temperature measurement values T MP of a plurality of measurement pixels; • correcting temperature measurement values T MP by in each case a pixel-associated temperature drift component T drift, wherein the reference pixels are implemented as blind pixels which are substantially insensitive to infrared radiation, wherein the second thermal conductivity λ BP is greater than the first thermal conductivity λ MP, characterized in that the temperature drift components T drift by which the temperature measurement values T MP are displaced in dependence on time are determined using temperature measurement values T BP, wherein a temperature drift behaviour m BP of the reference pixels is determined from temperature measurement values T BP of the reference pixels in order to determine the temperature drift components T drift.