Skip to content

Commit

Permalink
Squashed commit of the following:
Browse files Browse the repository at this point in the history 
commit 28731c8
Author: minniewong <min.m.wong@nasa.gov>
Date:   Fri May 3 11:52:12 2024 -0400

    Add 2 PACE layers (#5173)

commit a9636f6
Author: Ryan Weiler <ryanweiler92@gmail.com>
Date:   Fri May 3 11:47:07 2024 -0400

    activate water extent story (#5174)

    * activate water extent story

    * Update surface_water_extent.json

    ---------

    Co-authored-by: minniewong <min.m.wong@nasa.gov>

commit 3ab9cad
Author: minniewong <min.m.wong@nasa.gov>
Date:   Thu May 2 16:17:16 2024 -0400

    Final updates for surface water extent story (#5159)

commit d5d677b
Merge: 1383b52 a0d9713
Author: Ryan Weiler <ryanweiler92@gmail.com>
Date:   Wed May 1 13:51:32 2024 -0400

    Merge pull request #5164 from nasa-gibs/main

    Main to Develop - v4.34.0

commit a0d9713
Merge: 9dc656d 6668668
Author: Ryan Weiler <ryanweiler92@gmail.com>
Date:   Wed May 1 13:43:32 2024 -0400

    Merge pull request #5163 from nasa-gibs/release

    Release to Main - v4.34.0

commit 6668668
Merge: 2872fd0 65e7462
Author: Ryan Weiler <ryanweiler92@gmail.com>
Date:   Wed May 1 10:57:46 2024 -0400

    Merge pull request #5161 from nasa-gibs/UAT-v4.34.0

    UAT-v4.34.0 to Release

commit 65e7462
Author: ryanweiler92 <ryanweiler92@gmail.com>
Date:   Wed May 1 10:53:44 2024 -0400

    v4.34.0

commit 1383b52
Author: minniewong <min.m.wong@nasa.gov>
Date:   Wed May 1 10:20:43 2024 -0400

    WV-3084: Add 5 Level 1 NOAA-21/VIIRS layers (#5158)

    * Add 5 Level 1 NOAA-21 layers

    * update typos

    * update layer-picker-test e2e

    ---------

    Co-authored-by: ryanweiler92 <ryanweiler92@gmail.com>

commit e0a4dec
Author: Ryan Weiler <ryanweiler92@gmail.com>
Date:   Wed May 1 10:08:37 2024 -0400

    update endpoint (#5160)

commit 54e24e5
Author: minniewong <min.m.wong@nasa.gov>
Date:   Wed May 1 09:32:48 2024 -0400

    Add 4 Sentinel 3A and 3B orbit track layers (#5150)

commit 521c2d5
Author: Patrick Moulden <4834892+PatchesMaps@users.noreply.github.com>
Date:   Tue Apr 30 10:04:16 2024 -0400

    don't round time (#5149)

commit b8759c3
Author: Patrick Moulden <4834892+PatchesMaps@users.noreply.github.com>
Date:   Mon Apr 29 13:50:04 2024 -0400

    dependency updates (#5151)

commit 32efbb6
Merge: 618d4c4 9dc656d
Author: Ryan Weiler <ryanweiler92@gmail.com>
Date:   Tue Apr 23 17:28:00 2024 -0400

    Merge pull request #5138 from nasa-gibs/main

    Main v4.33.0 to Develop

commit 9dc656d
Merge: 4d89f78 2872fd0
Author: Ryan Weiler <ryanweiler92@gmail.com>
Date:   Tue Apr 23 17:24:59 2024 -0400

    Merge pull request #5137 from nasa-gibs/release

    Release to Main v4.33.0

commit 2872fd0
Merge: b8f4ebb 215e2e1
Author: Ryan Weiler <ryanweiler92@gmail.com>
Date:   Tue Apr 23 16:58:43 2024 -0400

    Merge pull request #5136 from nasa-gibs/UAT-v4.33.0

    UAT v4.33.0 --> Release

commit 215e2e1
Author: ryanweiler92 <ryanweiler92@gmail.com>
Date:   Tue Apr 23 16:55:41 2024 -0400

    UAT-v4.33.0

commit 618d4c4
Author: minniewong <min.m.wong@nasa.gov>
Date:   Tue Apr 23 16:23:36 2024 -0400

    Add 2 PACE Orbit Track layers (#5135)
  • Loading branch information
@christof-wittreich
christof-wittreich committed May 3, 2024
1 parent 37c681a commit 23da1fd
Show file tree
Hide file tree
Showing 106 changed files with 10,492 additions and 19,082 deletions.
12 changes: 12 additions & 0 deletions config/default/common/colormaps/orbits/OrbitTracks_PACE_Ascending.xml
View file
Original file line number Diff line number Diff line change
@@ -0,0 +1,12 @@
<?xml version="1.0" encoding="utf-8"?>
<ColorMaps xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:noNamespaceSchemaLocation="http://gibs.earthdata.nasa.gov/schemas/ColorMap_v1.3.xsd">
<ColorMap title="PACE Orbital Track">
<Entries>
<ColorMapEntry rgb="252,186,3" sourceValue="200" transparent="false" ref="1" />
</Entries>
<Legend type="classification">
<LegendEntry rgb="252,186,3" id="1" tooltip="Acquisition Time (UTC)" label="Acquisition Time (UTC)" showLabel="true" />
</Legend>
</ColorMap>
</ColorMaps>
12 changes: 12 additions & 0 deletions config/default/common/colormaps/orbits/OrbitTracks_PACE_Descending.xml
View file
Original file line number Diff line number Diff line change
@@ -0,0 +1,12 @@
<?xml version="1.0" encoding="utf-8"?>
<ColorMaps xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:noNamespaceSchemaLocation="http://gibs.earthdata.nasa.gov/schemas/ColorMap_v1.3.xsd">
<ColorMap title="PACE Orbital Track">
<Entries>
<ColorMapEntry rgb="252,186,3" sourceValue="200" transparent="false" ref="1" />
</Entries>
<Legend type="classification">
<LegendEntry rgb="252,186,3" id="1" tooltip="Acquisition Time (UTC)" label="Acquisition Time (UTC)" showLabel="true" />
</Legend>
</ColorMap>
</ColorMaps>
12 changes: 12 additions & 0 deletions config/default/common/colormaps/orbits/OrbitTracks_Sentinel-3A_Ascending.xml
View file
Original file line number Diff line number Diff line change
@@ -0,0 +1,12 @@
<?xml version="1.0" encoding="utf-8"?>
<ColorMaps xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:noNamespaceSchemaLocation="http://gibs.earthdata.nasa.gov/schemas/ColorMap_v1.3.xsd">
<ColorMap title="Sentinel-3A Orbital Track">
<Entries>
<ColorMapEntry rgb="3,17,252" sourceValue="200" transparent="false" ref="1" />
</Entries>
<Legend type="classification">
<LegendEntry rgb="3,17,252" id="1" tooltip="Acquisition Time (UTC)" label="Acquisition Time (UTC)" showLabel="true" />
</Legend>
</ColorMap>
</ColorMaps>
12 changes: 12 additions & 0 deletions config/default/common/colormaps/orbits/OrbitTracks_Sentinel-3A_Descending.xml
View file
Original file line number Diff line number Diff line change
@@ -0,0 +1,12 @@
<?xml version="1.0" encoding="utf-8"?>
<ColorMaps xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:noNamespaceSchemaLocation="http://gibs.earthdata.nasa.gov/schemas/ColorMap_v1.3.xsd">
<ColorMap title="Sentinel-3A Orbital Track">
<Entries>
<ColorMapEntry rgb="3,17,252" sourceValue="200" transparent="false" ref="1" />
</Entries>
<Legend type="classification">
<LegendEntry rgb="3,17,252" id="1" tooltip="Acquisition Time (UTC)" label="Acquisition Time (UTC)" showLabel="true" />
</Legend>
</ColorMap>
</ColorMaps>
12 changes: 12 additions & 0 deletions config/default/common/colormaps/orbits/OrbitTracks_Sentinel-3B_Ascending.xml
View file
Original file line number Diff line number Diff line change
@@ -0,0 +1,12 @@
<?xml version="1.0" encoding="utf-8"?>
<ColorMaps xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:noNamespaceSchemaLocation="http://gibs.earthdata.nasa.gov/schemas/ColorMap_v1.3.xsd">
<ColorMap title="Sentinel-3B Orbital Track">
<Entries>
<ColorMapEntry rgb="245,66,138" sourceValue="200" transparent="false" ref="1" />
</Entries>
<Legend type="classification">
<LegendEntry rgb="245,66,138" id="1" tooltip="Acquisition Time (UTC)" label="Acquisition Time (UTC)" showLabel="true" />
</Legend>
</ColorMap>
</ColorMaps>
12 changes: 12 additions & 0 deletions config/default/common/colormaps/orbits/OrbitTracks_Sentinel-3B_Descending.xml
View file
Original file line number Diff line number Diff line change
@@ -0,0 +1,12 @@
<?xml version="1.0" encoding="utf-8"?>
<ColorMaps xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:noNamespaceSchemaLocation="http://gibs.earthdata.nasa.gov/schemas/ColorMap_v1.3.xsd">
<ColorMap title="Sentinel-3B Orbital Track">
<Entries>
<ColorMapEntry rgb="245,66,138" sourceValue="200" transparent="false" ref="1" />
</Entries>
<Legend type="classification">
<LegendEntry rgb="245,66,138" id="1" tooltip="Acquisition Time (UTC)" label="Acquisition Time (UTC)" showLabel="true" />
</Legend>
</ColorMap>
</ColorMaps>
2 changes: 1 addition & 1 deletion ...mmon/config/metadata/layers/modis/aqua/MODIS_Aqua_Brightness_Temp_Band31_Day.md
View file
Original file line number Diff line number Diff line change
@@ -1,4 +1,4 @@
The MODIS Brightness Temperature (Band 31, Day) layer is the brightness temperature, measured in Kelvin (K), calculated from the top-of-the-atmosphere radiances. It does not provide an accurate temperature of either clouds nor the land surface, but it does show relative temperature differences which can be used to distinguish features both in clouds and over clear land. It can be used to distinguish land, sea ice, and open water over the polar regions during winter (in cloudless areas).
The MODIS Brightness Temperature (Band 31, Day) layer is the brightness temperature, measured in Kelvin (K), calculated from the top-of-the-atmosphere radiances. It does not provide an accurate temperature of either clouds or the land surface, but it does show relative temperature differences which can be used to distinguish features both in clouds and over clear land. It can be used to distinguish land, sea ice, and open water over the polar regions during winter (in cloudless areas).

The MODIS Brightness Temperature layer is calculated from MODIS Calibrated Radiances and is available from both the Terra (MOD02) and Aqua (MYD02) satellites. The sensor and imagery resolution is 1 km, and the temporal resolution is daily.

Expand Down
2 changes: 1 addition & 1 deletion ...on/config/metadata/layers/modis/aqua/MODIS_Aqua_Brightness_Temp_Band31_Night.md
View file
Original file line number Diff line number Diff line change
@@ -1,4 +1,4 @@
The MODIS Brightness Temperature (Band 31, Night) layer is the brightness temperature, measured in Kelvin (K), calculated from the top-of-the-atmosphere radiances. It does not provide an accurate temperature of either clouds nor the land surface, but it does show relative temperature differences which can be used to distinguish features both in clouds and over clear land. It can be used to distinguish land, sea ice, and open water over the polar regions during winter (in cloudless areas).
The MODIS Brightness Temperature (Band 31, Night) layer is the brightness temperature, measured in Kelvin (K), calculated from the top-of-the-atmosphere radiances. It does not provide an accurate temperature of either clouds or the land surface, but it does show relative temperature differences which can be used to distinguish features both in clouds and over clear land. It can be used to distinguish land, sea ice, and open water over the polar regions during winter (in cloudless areas).

The MODIS Brightness Temperature layer is calculated from MODIS Calibrated Radiances and is available from both the Terra (MOD02) and Aqua (MYD02) satellites. The sensor and imagery resolution is 1 km, and the temporal resolution is daily.

Expand Down
2 changes: 1 addition & 1 deletion ...on/config/metadata/layers/modis/terra/MODIS_Terra_Brightness_Temp_Band31_Day.md
View file
Original file line number Diff line number Diff line change
@@ -1,4 +1,4 @@
The MODIS Brightness Temperature (Band 31, Day) layer is the brightness temperature, measured in Kelvin (K), calculated from the top-of-the-atmosphere radiances. It does not provide an accurate temperature of either clouds nor the land surface, but it does show relative temperature differences which can be used to distinguish features both in clouds and over clear land. It can be used to distinguish land, sea ice, and open water over the polar regions during winter (in cloudless areas).
The MODIS Brightness Temperature (Band 31, Day) layer is the brightness temperature, measured in Kelvin (K), calculated from the top-of-the-atmosphere radiances. It does not provide an accurate temperature of either clouds or the land surface, but it does show relative temperature differences which can be used to distinguish features both in clouds and over clear land. It can be used to distinguish land, sea ice, and open water over the polar regions during winter (in cloudless areas).

The MODIS Brightness Temperature layer is calculated from MODIS Calibrated Radiances and is available from both the Terra (MOD02) and Aqua (MYD02) satellites. The sensor and imagery resolution is 1 km, and the temporal resolution is daily.

Expand Down
2 changes: 1 addition & 1 deletion .../config/metadata/layers/modis/terra/MODIS_Terra_Brightness_Temp_Band31_Night.md
View file
Original file line number Diff line number Diff line change
@@ -1,4 +1,4 @@
The MODIS Brightness Temperature (Band 31, Night) layer is the brightness temperature, measured in Kelvin (K), calculated from the top-of-the-atmosphere radiances. It does not provide an accurate temperature of either clouds nor the land surface, but it does show relative temperature differences which can be used to distinguish features both in clouds and over clear land. It can be used to distinguish land, sea ice, and open water over the polar regions during winter (in cloudless areas).
The MODIS Brightness Temperature (Band 31, Night) layer is the brightness temperature, measured in Kelvin (K), calculated from the top-of-the-atmosphere radiances. It does not provide an accurate temperature of either clouds or the land surface, but it does show relative temperature differences which can be used to distinguish features both in clouds and over clear land. It can be used to distinguish land, sea ice, and open water over the polar regions during winter (in cloudless areas).

The MODIS Brightness Temperature layer is calculated from MODIS Calibrated Radiances and is available from both the Terra (MOD02) and Aqua (MYD02) satellites. The sensor and imagery resolution is 1 km, and the temporal resolution is daily.

Expand Down
5 changes: 5 additions & 0 deletions config/default/common/config/metadata/layers/oci/OCI_PACE_Chlorophyll_a.md
View file
Original file line number Diff line number Diff line change
@@ -0,0 +1,5 @@
The Chlorophyll a layer provides the near-surface concentration of chlorophyll a in milligrams of chlorophyll pigment per cubic meter (mg/m<sup>3</sup>) in the ocean.

The Chlorophyll a product is available from the Ocean Color Instrument (OCI) aboard the PACE satellite. The sensor resolution is 1.2 km, imagery resolution is 1 km, and the temporal resolution is daily.

References: [PACE_OCI_L2_BGC_NRT](https://cmr.earthdata.nasa.gov/search/concepts/C2910373790-OB_CLOUD.html); PACE_OCI_L2_BGC [doi:10.5067/PACE/OCI/L2/OC_BGC/V1](https://doi.org/10.5067/PACE/OCI/L2/OC_BGC/V1)
5 changes: 5 additions & 0 deletions config/default/common/config/metadata/layers/oci/OCI_PACE_True_Color.md
View file
Original file line number Diff line number Diff line change
@@ -0,0 +1,5 @@
These images are called true-color or natural color because this combination of wavelengths is similar to what the human eye would see. The images are natural-looking images of land surface, oceanic and atmospheric features. The downside of this set of bands is that they tend to produce a hazy image.

The sensor resolution is 1.2 km, imagery resolution is 1 km, and the temporal resolution is daily.

References: [PACE_OCI_L2_SFREFL_NRT](https://cmr.earthdata.nasa.gov/search/concepts/C2910373807-OB_CLOUD.html); PACE_OCI_L2_SFREFL [doi:10.5067/PACE/OCI/L2/SFREFL/V1](https://doi.org/10.5067/PACE/OCI/L2/SFREFL/V1)
8 changes: 8 additions & 0 deletions config/default/common/config/metadata/layers/oci/oci.md
View file
Original file line number Diff line number Diff line change
@@ -0,0 +1,8 @@
### About OCI
The Ocean Color Instrument (OCI) is a spectrometer used to measure intensity of light over portions of the electromagnetic spectrum: ultraviolet (UV), visible, near infrared, and several shortwave infrared bands. It will enable continuous measurement of light at finer wavelength resolution than previous NASA ocean color sensors, providing detailed information on the global ocean. The color of the ocean is determined by the interaction of sunlight with substances or particles present in seawater such as chlorophyll, a green photosynthetic pigment found in phytoplankton and land plants.

### About PACE
[PACE](https://pace.gsfc.nasa.gov/) is NASA's Plankton, Aerosol, Cloud, ocean Ecosystem mission. The mission carries the Ocean Color Instrument (OCI), the Spectro-Polarimeter for Planetary Exploration (SPEXone), and the Hyper Angular Research Polarimeter (HARP2). OCI,PACE’s primary instrument, is an optical spectrometer that measures the intensity of light over portions of the electromagnetic spectrum. SPEXone and HARP2 are multi-angle polarimeters and they will be used to measure how the oscillation of sunlight within a geometric plane - known as its polarization - is changed by passing through clouds, aerosols, and the ocean. Measuring polarization states of UV-to-shortwave light at various angles provides detailed information on the atmosphere and ocean, such as particle size and composition. PACE will cover the entire globe every two days and at a spatial resolution of 1.2 km.



3 changes: 3 additions & 0 deletions ...lt/common/config/metadata/layers/reference/orbits/OrbitTracks_PACE_Ascending.md
View file
Original file line number Diff line number Diff line change
@@ -0,0 +1,3 @@
The PACE - Orbit Track & Time (Ascending/Day) layer is the path of the PACE (Plankton, Aerosol, Cloud, ocean Ecosystem) satellite on its ascending/day-time orbit. Overpass times are shown in Coordinated Universal Time (UTC).

Orbital Track information from <https://www.space-track.org/>.
3 changes: 3 additions & 0 deletions ...t/common/config/metadata/layers/reference/orbits/OrbitTracks_PACE_Descending.md
View file
Original file line number Diff line number Diff line change
@@ -0,0 +1,3 @@
The PACE - Orbit Track & Time (Descending/Night) layer is the path of the PACE (Plankton, Aerosol, Cloud, ocean Ecosystem) satellite on its descending/night-time orbit. Overpass times are shown in Coordinated Universal Time (UTC).

Orbital Track information from <https://www.space-track.org/>.
3 changes: 3 additions & 0 deletions ...on/config/metadata/layers/reference/orbits/OrbitTracks_Sentinel-3A_Ascending.md
View file
Original file line number Diff line number Diff line change
@@ -0,0 +1,3 @@
The Sentinel-3A Orbital Track & Overpass Time (Ascending/Night) layer is the path of the Sentinel-3A satellite on its ascending/night-time orbit. Overpass times are shown in Coordinated Universal Time (UTC).

Orbital Track information from <https://www.space-track.org/>.
3 changes: 3 additions & 0 deletions ...n/config/metadata/layers/reference/orbits/OrbitTracks_Sentinel-3A_Descending.md
View file
Original file line number Diff line number Diff line change
@@ -0,0 +1,3 @@
The Sentinel-3A Orbital Track & Overpass Time (Descending/Day) layer is the path of the Sentinel-3A satellite on its descending/day-time orbit. Overpass times are shown in Coordinated Universal Time (UTC).

Orbital Track information from <https://www.space-track.org/>.
3 changes: 3 additions & 0 deletions ...on/config/metadata/layers/reference/orbits/OrbitTracks_Sentinel-3B_Ascending.md
View file
Original file line number Diff line number Diff line change
@@ -0,0 +1,3 @@
The Sentinel-3B Orbital Track & Overpass Time (Ascending/Night) layer is the path of the Sentinel-3B satellite on its ascending/night-time orbit. Overpass times are shown in Coordinated Universal Time (UTC).

Orbital Track information from <https://www.space-track.org/>.
3 changes: 3 additions & 0 deletions ...n/config/metadata/layers/reference/orbits/OrbitTracks_Sentinel-3B_Descending.md
View file
Original file line number Diff line number Diff line change
@@ -0,0 +1,3 @@
The Sentinel-3B Orbital Track & Overpass Time (Descending/Day) layer is the path of the Sentinel-3B satellite on its descending/day-time orbit. Overpass times are shown in Coordinated Universal Time (UTC).

Orbital Track information from <https://www.space-track.org/>.
2 changes: 1 addition & 1 deletion .../config/metadata/layers/viirs/noaa20/VIIRS_NOAA20_Brightness_Temp_BandI5_Day.md
View file
Original file line number Diff line number Diff line change
@@ -1,4 +1,4 @@
The VIIRS Brightness Temperature (Band I5, Day) layer is the brightness temperature, measured in Kelvin (K), calculated from the top-of-the-atmosphere radiances. It does not provide an accurate temperature of either clouds nor the land surface, but it does show relative temperature differences which can be used to distinguish features both in clouds and over clear land. It can be used to distinguish land, sea ice, and open water over the polar regions during winter (in cloudless areas).
The VIIRS Brightness Temperature (Band I5, Day) layer is the brightness temperature, measured in Kelvin (K), calculated from the top-of-the-atmosphere radiances. It does not provide an accurate temperature of either clouds or the land surface, but it does show relative temperature differences which can be used to distinguish features both in clouds and over clear land. It can be used to distinguish land, sea ice, and open water over the polar regions during winter (in cloudless areas).

The VIIRS Brightness Temperature layer is calculated from VIIRS Calibrated Radiances. The VIIRS instrument is aboard the joint NASA/NOAA NOAA-20 (JPSS-1) satellite. The sensor resolution is 375m, the imagery resolution is 250m, and the temporal resolution is daily.

Expand Down
2 changes: 1 addition & 1 deletion ...onfig/metadata/layers/viirs/noaa20/VIIRS_NOAA20_Brightness_Temp_BandI5_Night.md
View file
Original file line number Diff line number Diff line change
@@ -1,4 +1,4 @@
The VIIRS Brightness Temperature (Band I5, Night) layer is the brightness temperature, measured in Kelvin (K), calculated from the top-of-the-atmosphere radiances. It does not provide an accurate temperature of either clouds nor the land surface, but it does show relative temperature differences which can be used to distinguish features both in clouds and over clear land. It can be used to distinguish land, sea ice, and open water over the polar regions during winter (in cloudless areas).
The VIIRS Brightness Temperature (Band I5, Night) layer is the brightness temperature, measured in Kelvin (K), calculated from the top-of-the-atmosphere radiances. It does not provide an accurate temperature of either clouds or the land surface, but it does show relative temperature differences which can be used to distinguish features both in clouds and over clear land. It can be used to distinguish land, sea ice, and open water over the polar regions during winter (in cloudless areas).

The VIIRS Brightness Temperature layer is calculated from VIIRS Calibrated Radiances. The VIIRS instrument is aboard the joint NASA/NOAA NOAA-20 (JPSS-1) satellite. The sensor resolution is 375m, the imagery resolution is 250m, and the temporal resolution is daily.

Expand Down
7 changes: 7 additions & 0 deletions .../config/metadata/layers/viirs/noaa21/VIIRS_NOAA21_Brightness_Temp_BandI5_Day.md
View file
Original file line number Diff line number Diff line change
@@ -0,0 +1,7 @@
The VIIRS Brightness Temperature (Band I5, Day) layer is the brightness temperature, measured in Kelvin (K), calculated from the top-of-the-atmosphere radiances. It does not provide an accurate temperature of either clouds or the land surface, but it does show relative temperature differences which can be used to distinguish features both in clouds and over clear land. It can be used to distinguish land, sea ice, and open water over the polar regions during winter (in cloudless areas).

The VIIRS Brightness Temperature layer is calculated from VIIRS Calibrated Radiances. The VIIRS instrument is aboard the joint NASA/NOAA NOAA-21 (JPSS-2) satellite. The sensor resolution is 375m, the imagery resolution is 250m, and the temporal resolution is daily.

Note: The Corrected Reflectance and the Thermal Band I5 imagery from NOAA-21/VIIRS will occasionally show a checkered pattern, especially over the respective polar areas. This is due to overlapping and superimposition of observations from multiple orbits with widely different cloud/snow coverages. The checkered pattern may also arise from the mixture of partial day and night observations. Though all necessary steps have been taken to mitigate this effect, users may still notice this to some extent over the polar areas, depending on the season.

References: VJ203IMG_NRT [doi:10.5067/VIIRS/VJ203IMG_NRT.002](https://doi.org/10.5067/VIIRS/VJ203IMG_NRT.002); VJ202IMG_NRT [doi:10.5067/VIIRS/VJ202IMG_NRT.002](https://doi.org/10.5067/VIIRS/VJ202IMG_NRT.002)
7 changes: 7 additions & 0 deletions ...onfig/metadata/layers/viirs/noaa21/VIIRS_NOAA21_Brightness_Temp_BandI5_Night.md
View file
Original file line number Diff line number Diff line change
@@ -0,0 +1,7 @@
The VIIRS Brightness Temperature (Band I5, Night) layer is the brightness temperature, measured in Kelvin (K), calculated from the top-of-the-atmosphere radiances. It does not provide an accurate temperature of either clouds or the land surface, but it does show relative temperature differences which can be used to distinguish features both in clouds and over clear land. It can be used to distinguish land, sea ice, and open water over the polar regions during winter (in cloudless areas).

The VIIRS Brightness Temperature layer is calculated from VIIRS Calibrated Radiances. The VIIRS instrument is aboard the joint NASA/NOAA NOAA-21 (JPSS-2) satellite. The sensor resolution is 375m, the imagery resolution is 250m, and the temporal resolution is daily.

Note: The Corrected Reflectance and the Thermal Band I5 imagery from NOAA-21/VIIRS will occasionally show a checkered pattern, especially over the respective polar areas. This is due to overlapping and superimposition of observations from multiple orbits with widely different cloud/snow coverages. The checkered pattern may also arise from the mixture of partial day and night observations. Though all necessary steps have been taken to mitigate this effect, users may still notice this to some extent over the polar areas, depending on the season.

References: VJ203IMG_NRT [doi:10.5067/VIIRS/VJ203IMG_NRT.002](https://doi.org/10.5067/VIIRS/VJ203IMG_NRT.002); VJ202IMG_NRT [doi:10.5067/VIIRS/VJ202IMG_NRT.002](https://doi.org/10.5067/VIIRS/VJ202IMG_NRT.002)
Loading

0 comments on commit 23da1fd

Please sign in to comment.