WV-2958 Additional Vegetation Indices (#5365)

* Added other expressions

* Changed colormaps

* Adjusted selection card spacing

* Added separate hls layers

* fix typo

* Revert "fix typo"

This reverts commit 24bf124.

* layer descriptions for new indices

* update spacing for equations

* Add new large preview images

* Thumbnail preview images for customizable HLS

* Thumbnails url

* Fixed thumbnail height

* fix typos

---------

Co-authored-by: minniewong <[email protected]>

config/default/common/config/metadata/layers/multi-mission/hls/HLS_Customizable_Sentinel.md

@@ -2,7 +2,7 @@
 
 This Reflectance imagery layer can be customized to display any available Red-Green-Blue (R-G-B) band combination. Select the desired combination in via the Options panel. The layer is dynamically generated, therefore it may take longer to display.
 
-The Reflectance imagery layer from Sentinel-2A and Sentinel-2B /MSI product (S30) is available through the HLS project from the Multi-Spectral Instrument (MSI) aboard the European Union’s Copernicus Sentinel-2A and Sentinel-2B satellites. The sensor resolution is 10, 20, and 60 m, imagery resolution is resampled to 30 m, and the temporal resolution is daily with a 5 day revisit time. The imagery is available in Worldview/GIBS approximately 2 - 4 days after satellite overpass. There is a separate combined Landsat 8 and 9 imagery layer available.
+The Reflectance imagery layer from Sentinel-2A and Sentinel-2B/MSI product (S30) is available through the HLS project from the Multi-Spectral Instrument (MSI) aboard the European Union’s Copernicus Sentinel-2A and Sentinel-2B satellites. The sensor resolution is 10, 20, and 60 m, imagery resolution is resampled to 30 m, and the temporal resolution is daily with a 5 day revisit time. The imagery is available in Worldview/GIBS approximately 2 - 4 days after satellite overpass. There is a separate combined Landsat 8 and 9 imagery layer available.
 
 This imagery layer is provided dynamically through the [NASA Interagency Implementation and Advanced Concepts Team (IMPACT)](https://earthdata.nasa.gov/esds/impact). As it is dynamically generated, it may take slightly longer to display than normal. The imagery is also only available at higher zoom levels.
 

config/default/common/config/metadata/layers/multi-mission/hls/HLS_EVI_Landsat.md

@@ -0,0 +1,21 @@
+**NOTE: This layer is undergoing beta testing.**
+
+The dynamically generated Enhanced Vegetation Index (EVI) imagery layer is an index for quantifying green vegetation. EVI is similar to NDVI but corrects for some atmospheric conditions, canopy background noise, and is more sensitive to areas with dense vegetation. It reflects the state of vegetation health based on how vegetation reflects light at certain wavelengths.
+
+It is calculated using:
+
+`EVI = G * ((NIR - R) / (NIR + C1 * R – C2 * B + L))`
+
+Specifically for Landsat 8 and 9:
+
+`EVI = 2.5 * ((B5 – B4) / (B5 + 6 * B4 – 7.5 * B2 + 1))`
+
+It incorporates an “L” value to adjust for canopy background, “C” values as coefficients for atmospheric resistance, and values from the blue band (B). These enhancements allow for index calculation as a ratio between the R and NIR values, while reducing the background noise, atmospheric noise, and saturation in most cases.
+
+The image is applied with a divergent blue-green to brown color palette. It depicts areas with a lot of green leaf growth, indicating the presence of chlorophyll, in dark green colors. Chlorophyll reflects more infrared light and less visible light. Areas with some green leaf growth are in light yellows, and areas with little to no vegetation growth are in shades of brown.
+
+The Reflectance imagery layer from Landsat 8 and 9/OLI product (L30) is available through the HLS project from the Operational Land Imager (OLI) aboard the Landsat 8 and 9 satellites. The sensor resolution is 30 m, imagery resolution is 30 m, and the temporal resolution is daily with an 8 day revisit time. The imagery is available in Worldview/GIBS approximately 2 - 4 days after satellite overpass. There is a separate combined Sentinel-2A and Sentinel-2B imagery layer available.
+
+This imagery layer is provided dynamically through the [NASA Interagency Implementation and Advanced Concepts Team (IMPACT)](https://earthdata.nasa.gov/esds/impact). As it is dynamically generated, it may take slightly longer to display than normal. The imagery is also only available at higher zoom levels.
+
+References: HLSL30 v002 [doi:10.5067/HLS/HLSL30.002](https://doi.org/10.5067/HLS/HLSL30.002)

config/default/common/config/metadata/layers/multi-mission/hls/HLS_EVI_Sentinel.md

@@ -0,0 +1,21 @@
+**NOTE: This layer is undergoing beta testing.**
+
+The dynamically generated Enhanced Vegetation Index (EVI) imagery layer is an index for quantifying green vegetation. EVI is similar to NDVI but corrects for some atmospheric conditions, canopy background noise, and is more sensitive to areas with dense vegetation. It reflects the state of vegetation health based on how vegetation reflects light at certain wavelengths.
+
+It is calculated using:
+
+`EVI = G * ((NIR - R) / (NIR + C1 * R – C2 * B + L))`
+
+Specifically for Sentinel-2A and -2B:
+
+`EVI = 2.5 * ((B8A – B4) / (B8A + 6 * B4 – 7.5 * B2 + 1))`
+
+It incorporates an “L” value to adjust for canopy background, “C” values as coefficients for atmospheric resistance, and values from the blue band (B). These enhancements allow for index calculation as a ratio between the R and NIR values, while reducing the background noise, atmospheric noise, and saturation in most cases.
+
+The image is applied with a divergent blue-green to brown color palette. It depicts areas with a lot of green leaf growth, indicating the presence of chlorophyll, in dark green colors. Chlorophyll reflects more infrared light and less visible light. Areas with some green leaf growth are in light yellows, and areas with little to no vegetation growth are in shades of brown.
+
+The Reflectance imagery layer from Sentinel-2A and Sentinel-2B/MSI product (S30) is available through the HLS project from the Multi-Spectral Instrument (MSI) aboard the European Union’s Copernicus Sentinel-2A and Sentinel-2B satellites. The sensor resolution is 10, 20, and 60 m, imagery resolution is resampled to 30 m, and the temporal resolution is daily with a 5 day revisit time. The imagery is available in Worldview/GIBS approximately 2 - 4 days after satellite overpass. There is a separate combined Landsat 8 and 9 imagery layer available.
+
+This imagery layer is provided dynamically through the [NASA Interagency Implementation and Advanced Concepts Team (IMPACT)](https://earthdata.nasa.gov/esds/impact). As it is dynamically generated, it may take slightly longer to display than normal. The imagery is only available at higher zoom levels.
+
+References: HLSS30 v002 [doi:10.5067/HLS/HLSS30.002](https://doi.org/10.5067/HLS/HLSS30.002)

config/default/common/config/metadata/layers/multi-mission/hls/HLS_False_Color_Sentinel.md

@@ -2,7 +2,7 @@
 
 The dynamically generated Reflectance (Bands 8-4-3, Color Infrared) imagery layer is a false color composite that is used to gauge plant health and assess plant density. Plants reflect in near infrared and green light, while absorbing in red. Areas with better vegetation health appear red, and denser plant growth is a darker red. Cities, urban areas, and exposed ground appear grey or tan and water is blue or black.
 
-The Reflectance imagery layer from Sentinel-2A and Sentinel-2B /MSI product (S30) is available through the HLS project from the Multi-Spectral Instrument (MSI) aboard the European Union’s Copernicus Sentinel-2A and Sentinel-2B satellites. The sensor resolution is 10, 20, and 60 m, imagery resolution is resampled to 30 m, and the temporal resolution is daily with a 5 day revisit time. The imagery is available in Worldview/GIBS approximately 2 - 4 days after satellite overpass. There is a separate combined Landsat 8 and 9 imagery layer available.
+The Reflectance imagery layer from Sentinel-2A and Sentinel-2B/MSI product (S30) is available through the HLS project from the Multi-Spectral Instrument (MSI) aboard the European Union’s Copernicus Sentinel-2A and Sentinel-2B satellites. The sensor resolution is 10, 20, and 60 m, imagery resolution is resampled to 30 m, and the temporal resolution is daily with a 5 day revisit time. The imagery is available in Worldview/GIBS approximately 2 - 4 days after satellite overpass. There is a separate combined Landsat 8 and 9 imagery layer available.
 
 This imagery layer is provided dynamically through the [NASA Interagency Implementation and Advanced Concepts Team (IMPACT)](https://earthdata.nasa.gov/esds/impact). As it is dynamically generated, it may take slightly longer to display than normal. The imagery is only available at higher zoom levels.
 

config/default/common/config/metadata/layers/multi-mission/hls/HLS_False_Color_Urban_Landsat.md

@@ -2,7 +2,7 @@
 
 The dynamically generated Reflectance (Bands 7-6-4, Urban False Color) imagery layer is useful for visualizing urban areas more clearly. Urban areas are white, grey, or purple and vegetation appear in shades of green. Snow and ice are dark blue, and water is black or blue. Flooded areas are very dark blue, sometimes black. Wildfires and lava in calderas of volcanoes display in shades of yellow and red.
 
-The Reflectance imagery layer from Landsat 8 and 9/OLI product (L30) is available through the HLS project from the Operational Land Imager (OLI) aboard the Landsat 8 and 9 satellites. The sensor resolution is 30 m, imagery resolution is 30 m, and the temporal resolution is daily with an 8 day revisit time. The imagery is available in Worldview/GIBS approximately 2 - 4 days after satellite overpass. There is a separate combined Sentinel-2A and Sentinel-2B  imagery layer available.
+The Reflectance imagery layer from Landsat 8 and 9/OLI product (L30) is available through the HLS project from the Operational Land Imager (OLI) aboard the Landsat 8 and 9 satellites. The sensor resolution is 30 m, imagery resolution is 30 m, and the temporal resolution is daily with an 8 day revisit time. The imagery is available in Worldview/GIBS approximately 2 - 4 days after satellite overpass. There is a separate combined Sentinel-2A and Sentinel-2B imagery layer available.
 
 This imagery layer is provided dynamically through the [NASA Interagency Implementation and Advanced Concepts Team (IMPACT)](https://earthdata.nasa.gov/esds/impact). As it is dynamically generated, it may take slightly longer to display than normal. The imagery is also only available at higher zoom levels.
 

config/default/common/config/metadata/layers/multi-mission/hls/HLS_False_Color_Urban_Sentinel.md

@@ -3,7 +3,7 @@
 The dynamically generated Reflectance (Bands 12-11-4, Urban False Color) imagery layer is useful for visualizing urban areas more clearly. Urban areas are white, grey, or purple and vegetation appear in shades of green. Snow and ice are dark blue, and water is black or blue. Flooded areas are very dark blue, sometimes black. Wildfires and lava in calderas of volcanoes display in shades of yellow and red.
 
 
-The Reflectance imagery layer from Sentinel-2A and Sentinel-2B /MSI product (S30) is available through the HLS project from the Multi-Spectral Instrument (MSI) aboard the European Union’s Copernicus Sentinel-2A and Sentinel-2B satellites. The sensor resolution is 10, 20, and 60 m, imagery resolution is resampled to 30 m, and the temporal resolution is daily with a 5 day revisit time. The imagery is available in Worldview/GIBS approximately 2 - 4 days after satellite overpass. There is a separate combined Landsat 8 and 9 imagery layer available.
+The Reflectance imagery layer from Sentinel-2A and Sentinel-2B/MSI product (S30) is available through the HLS project from the Multi-Spectral Instrument (MSI) aboard the European Union’s Copernicus Sentinel-2A and Sentinel-2B satellites. The sensor resolution is 10, 20, and 60 m, imagery resolution is resampled to 30 m, and the temporal resolution is daily with a 5 day revisit time. The imagery is available in Worldview/GIBS approximately 2 - 4 days after satellite overpass. There is a separate combined Landsat 8 and 9 imagery layer available.
 
 This imagery layer is provided dynamically through the [NASA Interagency Implementation and Advanced Concepts Team (IMPACT)](https://earthdata.nasa.gov/esds/impact). As it is dynamically generated, it may take slightly longer to display than normal. The imagery is also only available at higher zoom levels.
 

config/default/common/config/metadata/layers/multi-mission/hls/HLS_False_Color_Vegetation_Landsat.md

@@ -2,7 +2,7 @@
 
 The dynamically generated Reflectance (Bands 6-5-4, Vegetative Analysis False Color) imagery layer is useful for looking at vegetation. Vegetation are in shades of green. Burned areas appear bright red, while bare ground appear light red/pink. Water is black.
 
-The Reflectance imagery layer from Landsat 8 and 9/OLI product (L30) is available through the HLS project from the Operational Land Imager (OLI) aboard the Landsat 8 and 9 satellites. The sensor resolution is 30 m, imagery resolution is 30 m, and the temporal resolution is daily with an 8 day revisit time. The imagery is available in Worldview/GIBS approximately 2 - 4 days after satellite overpass. There is a separate combined Sentinel-2A and Sentinel-2B  imagery layer available.
+The Reflectance imagery layer from Landsat 8 and 9/OLI product (L30) is available through the HLS project from the Operational Land Imager (OLI) aboard the Landsat 8 and 9 satellites. The sensor resolution is 30 m, imagery resolution is 30 m, and the temporal resolution is daily with an 8 day revisit time. The imagery is available in Worldview/GIBS approximately 2 - 4 days after satellite overpass. There is a separate combined Sentinel-2A and Sentinel-2B imagery layer available.
 
 This imagery layer is provided dynamically through the [NASA Interagency Implementation and Advanced Concepts Team (IMPACT)](https://earthdata.nasa.gov/esds/impact). As it is dynamically generated, it may take slightly longer to display than normal. The imagery is also only available at higher zoom levels.
 

config/default/common/config/metadata/layers/multi-mission/hls/HLS_False_Color_Vegetation_Sentinel.md

@@ -2,7 +2,7 @@
 
 The dynamically generated Reflectance (Bands 11-8A-4, Vegetative Analysis False Color) imagery layer is useful for looking at vegetation. Vegetation are in shades of green. Burned areas appear bright red, while bare ground appear light red/pink. Water is black.
 
-The Reflectance imagery layer from Sentinel-2A and Sentinel-2B /MSI product (S30) is available through the HLS project from the Multi-Spectral Instrument (MSI) aboard the European Union’s Copernicus Sentinel-2A and Sentinel-2B satellites. The sensor resolution is 10, 20, and 60 m, imagery resolution is resampled to 30 m, and the temporal resolution is daily with a 5 day revisit time. The imagery is available in Worldview/GIBS approximately 2 - 4 days after satellite overpass. There is a separate combined Landsat 8 and 9 imagery layer available.
+The Reflectance imagery layer from Sentinel-2A and Sentinel-2B/MSI product (S30) is available through the HLS project from the Multi-Spectral Instrument (MSI) aboard the European Union’s Copernicus Sentinel-2A and Sentinel-2B satellites. The sensor resolution is 10, 20, and 60 m, imagery resolution is resampled to 30 m, and the temporal resolution is daily with a 5 day revisit time. The imagery is available in Worldview/GIBS approximately 2 - 4 days after satellite overpass. There is a separate combined Landsat 8 and 9 imagery layer available.
 
 This imagery layer is provided dynamically through the [NASA Interagency Implementation and Advanced Concepts Team (IMPACT)](https://earthdata.nasa.gov/esds/impact). As it is dynamically generated, it may take slightly longer to display than normal. The imagery is also only available at higher zoom levels.
 

config/default/common/config/metadata/layers/multi-mission/hls/HLS_MSAVI_Landsat.md

@@ -0,0 +1,19 @@
+**NOTE: This layer is undergoing beta testing.**
+
+The dynamically generated Modified Soil Adjusted Vegetation Index (MSAVI) imagery layer minimizes the effect of bare soil on the Soil Adjusted Vegetation Index (SAVI). MSAVI is calculated as a ratio between the R and NIR values with an inductive L function applied to maximize reduction of soil effects on the vegetation signal.
+
+It is calculated using:
+
+`MSAVI = (2 * NIR + 1 – sqrt ((2 * NIR + 1)2 – 8 * (NIR - R))) / 2`
+
+Specifically for Landsat 8 and 9:
+
+`MSAVI = (2 * Band 5 + 1 – sqrt ((2 * Band 5 + 1)2 – 8 * (Band 5 – Band 4))) / 2`
+
+The image is applied with a divergent blue-green to brown color palette. It depicts areas with a lot of green leaf growth, indicating the presence of chlorophyll, in dark green colors. Chlorophyll reflects more infrared light and less visible light. Areas with some green leaf growth are in light greens, and areas with little to no vegetation growth are in shades of brown.
+
+The Reflectance imagery layer from Landsat 8 and 9/OLI product (L30) is available through the HLS project from the Operational Land Imager (OLI) aboard the Landsat 8 and 9 satellites. The sensor resolution is 30 m, imagery resolution is 30 m, and the temporal resolution is daily with an 8 day revisit time. The imagery is available in Worldview/GIBS approximately 2 - 4 days after satellite overpass. There is a separate combined Sentinel-2A and Sentinel-2B imagery layer available.
+
+This imagery layer is provided dynamically through the [NASA Interagency Implementation and Advanced Concepts Team (IMPACT)](https://earthdata.nasa.gov/esds/impact). As it is dynamically generated, it may take slightly longer to display than normal. The imagery is also only available at higher zoom levels.
+
+References: HLSL30 v002 [doi:10.5067/HLS/HLSL30.002](https://doi.org/10.5067/HLS/HLSL30.002)

config/default/common/config/metadata/layers/multi-mission/hls/HLS_MSAVI_Sentinel.md

@@ -0,0 +1,19 @@
+**NOTE: This layer is undergoing beta testing.**
+
+The dynamically generated Modified Soil Adjusted Vegetation Index (MSAVI) imagery layer minimizes the effect of bare soil on the Soil Adjusted Vegetation Index (SAVI). MSAVI is calculated as a ratio between the R and NIR values with an inductive L function applied to maximize reduction of soil effects on the vegetation signal.
+
+It is calculated using:
+
+`MSAVI = (2 * NIR + 1 – sqrt ((2 * NIR + 1)2 – 8 * (NIR - R))) / 2`
+
+Specifically for Sentinel-2A and -2B:
+
+`MSAVI = (2 * Band 8A + 1 – sqrt ((2 * Band 8A + 1)2 – 8 * (Band 8A – Band 4))) / 2`
+
+The image is applied with a divergent blue-green to brown color palette. It depicts areas with a lot of green leaf growth, indicating the presence of chlorophyll, in dark green colors. Chlorophyll reflects more infrared light and less visible light. Areas with some green leaf growth are in light greens, and areas with little to no vegetation growth are in shades of brown.
+
+The Reflectance imagery layer from Sentinel-2A and Sentinel-2B/MSI product (S30) is available through the HLS project from the Multi-Spectral Instrument (MSI) aboard the European Union’s Copernicus Sentinel-2A and Sentinel-2B satellites. The sensor resolution is 10, 20, and 60 m, imagery resolution is resampled to 30 m, and the temporal resolution is daily with a 5 day revisit time. The imagery is available in Worldview/GIBS approximately 2 - 4 days after satellite overpass. There is a separate combined Landsat 8 and 9 imagery layer available.
+
+This imagery layer is provided dynamically through the [NASA Interagency Implementation and Advanced Concepts Team (IMPACT)](https://earthdata.nasa.gov/esds/impact). As it is dynamically generated, it may take slightly longer to display than normal. The imagery is only available at higher zoom levels.
+
+References: HLSS30 v002 [doi:10.5067/HLS/HLSS30.002](https://doi.org/10.5067/HLS/HLSS30.002)