| snippet:
|
Land Information System (LIS) Alaska Green Vegetation Fraction, Updated Daily. |
| summary:
|
Land Information System (LIS) Alaska Green Vegetation Fraction, Updated Daily. |
| accessInformation:
|
NASA, MSFC SPoRT Center |
| thumbnail:
|
|
| maxScale:
|
577790.554288779 |
| typeKeywords:
|
["Data","Service","Image Service","ArcGIS Server"] |
| description:
|
<DIV STYLE="text-align:Left;"><DIV><DIV><P><SPAN STYLE="font-weight:bold;">Background</SPAN><SPAN>:</SPAN></P><P><SPAN>Land Information System (LIS) Soil Moisture from NASA’s SPoRT Center The NASA Short-term Prediction Research and Transition (SPoRT) Center runs a real-time version of the Noah land surface model at ~3-km resolution over the Continental U.S. The simulations run the NASA Land Information System(LIS) software, incorporating real-time Suomi-NPP green vegetation fraction, radar/gauge-derived precipitation estimates and atmospheric analysis fields to generate daily modeled analyses of soil moisture at prescribed layers within the Noah model soil column. Relative Soil Moisture (0% wilting, 100% saturation) in the 0-2m (total column) layers. The near-surface layer responds quickly to heavy rainfall and indicates near-saturated conditions conducive to significant runoff and flash/river flooding, while the deeper column layers represent longer-term water storage via infiltration from upper layers. The Image Service is published using a Raster Mosaic populated with GeoTiffs collected from the Global Hydrology Resource Center (GHRC) SPoRT FTP site daily. </SPAN></P><P><SPAN STYLE="font-weight:bold;">Data Visualization:</SPAN></P><P><SPAN>Relative Soil Moisture (RSM) is shown using a Classified Color Ramp (Multi-Color, 20 classes). Each class represents percentage of volumetric soil moisture. Values at 0% indicate no moisture in soil, inversely values of 100% indicate complete saturation. </SPAN></P><P><SPAN STYLE="font-weight:bold;">Update Frequency:</SPAN></P><P><SPAN>Daily</SPAN></P><P><SPAN STYLE="font-weight:bold;">Suggested Usage:</SPAN></P><P><SPAN>Estimating ground water saturation levels during/after heavy rain events.</SPAN></P><P><SPAN STYLE="font-weight:bold;">Further Reference:</SPAN></P><P><SPAN>Download LIS Soil Moisture Quick Guide</SPAN></P><P><SPAN>Download LIS Brief Product Overview</SPAN></P><P><SPAN>Learn more about NASA SPoRT program</SPAN></P></DIV></DIV></DIV> |
| licenseInfo:
|
<DIV STYLE="text-align:Left;"><DIV><DIV><P><SPAN>NASA data and products are freely available to federal, state, public, non-profit and commercial users. This information can be experimental- or research-grade data products and may not be appropriate for operational use. These NASA data products, services, and the Disasters Mapping Portal are intended to aid decision makers and enhance situational awareness, but these data are not guaranteed to be consistently available or routinely updated. Please cite the information according to the direction provided in the metadata.</SPAN></P></DIV></DIV></DIV> |
| catalogPath:
|
|
| title:
|
lis_ak_green_veg_fraction |
| type:
|
Image Service |
| url:
|
https://maps.disasters.nasa.gov/ags03 |
| tags:
|
["NASA Disasters Program","Land Information System","LIS","Alaska","NRT","Green Vegetation Fraction"] |
| culture:
|
en-US |
| name:
|
lis_ak_green_veg_fraction |
| guid:
|
|
| minScale:
|
7.39571909489637E7 |
| spatialReference:
|
GCS_WGS_1984 |