The C2 NDSI science product is the normalized difference between spectral bands green (G) and the shortwave infrared (SWIR). The NDSI is particularly useful for separating snow from vegetation, soils, and lithology endmembers.

The National Disability Insurance Agency (NDIA) is an independent statutory agency. Our role is to implement the National Disability Insurance Scheme (NDIS).

The Normalized Difference Snow Index (NDSI) snow cover is an index that is related to the presence of snow in a pixel and is a more accurate description of snow detection as compared to Fractional Snow Cover (FSC).

NDSI is the normalized difference between spectral bands green (G) and shortwave infrared (SWIR). NDSI is useful for separating snow from vegetation, soils, and other spectral signatures, and is delivered as a single band.

Sep 24, 2021 · NDSI is a measure of the relative magnitude of the reflectance difference between visible (green) and shortwave infrared (SWIR). It controls variance of two bands (one in the near infrared or short-wave infrared and another one in the visible parts of the spectrum).

Jan 1, 2014 · Normalized-Difference Snow Index (NDSI) – normalized difference of two bands (one in the visible and one in the near-infrared or short-wave infrared parts of the spectrum) is used to map snow. Snow is highly reflective in the visible part of the EM spectrum and highly absorptive in the near-infrared or short-wave infrared part of the spectrum ...

\[NDSI = \frac{B3-B11}{B3+B11}\] The Sentinel-2 normalized difference snow index is a ratio of two bands: one in the VIR (Band 3) and one in the SWIR (Band 11). Values above 0.42 are usually snow. More info here.

Jul 25, 2023 · NDSI usually ranges from -5 to 1, with ~0.5 to 1 representing snow cover. Time series and anomaly maps of NDSI clearly show changes in snow cover for a region. Positive anomalies indicate increased snow cover, whereas negative anomalies indicate decreased snow cover relative to average conditions.

Normalized Difference Snow Index (NDSI) describes the Snow cover for any area. NDSI is calculated as a ratio between the visible (VIS) and mid-infrared (MIR). Process of NDSI

May 6, 2010 · The Normalized-Difference Snow Index (NDSI) has a long history. 'The use of ratioing visible (VIS) and near-infrared (NIR) or short-wave infrared (SWIR) channels to separate snow and clouds was documented in the literature beginning in the mid-1970s.