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- Drought - ArcGIS Living Atlas - Indicators of the PlanetDrought affects the planet in many ways, but some of the most severe impacts are to agricultural areas, especially those in developing countries. Prolonged drought may cause crops to fail, resulting in widespread food shortages and famine. While these developing countries may not have sophisticated ground-based sensor networks to monitor drought conditions, we can use satellites to estimate droughts anywhere on Earth. Satellite drought index information from NOAA is summarized within areas identified as agricultural based on an analysis by the USGS and Esri. The map below displays the latest monthly CHIRPS Standardized Precipitation Index product produced by USGS and UC Santa Barbara.1Licence not specifiedover 1 year ago
- Sea Ice- ArcGIS Living Atlas - Indicators of the PlanetNot only does sea ice provide an irreplaceable habitat for many polar species, but it also is essential for the proper functioning of Earth’s climate system. Reductions of sea ice extent are accelerating warming along with exposing otherwise protected areas to resource exploitation. Track the status of sea ice in the Arctic and Antarctic using the latest information from NOAA at the National Snow and Ice Data Center available in Esri’s Living Atlas and learn more about changing conditions in the polar regions.1Licence not specifiedover 1 year ago
- Sea Level Rise - ArcGIS Living Atlas - Indicators of the PlanetSea levels around the globe are increasing as ocean temperature warm and cause the water to expand in volume, along with land-based ice melting and increasing the amount of water in the ocean. Rising sea levels not only make coastal living more dangerous from storm flooding and erosion, but also cause significant habitat loss and impacts to ecosystems. Satellites work in conjunction with tide gauges to give us both a global and local perspective of changes in sea level. We can see the overall trends in satellite-based maps, along with accurate hour-by-hour changes at the local level from gauges.1Licence not specifiedover 1 year ago
- Water Balance App - ESRI Living Atlas of the WorldThis app is based on data from NASA’s Global Land Data Assimilation System (GLDAS-2.1), which uses weather observations like temperature, humidity, and rainfall to run the Noah land surface model. This model estimates how much of the rain becomes runoff, how much evaporates, and how much infiltrates into the soil. These output variables, calculated every three hours, are aggregated into monthly averages, giving us a record of the hydrologic cycle going all the way back to January 2000. Soil moisture plus snowpack is the water storage at any given place. Every month that storage volume changes according to the water flux - recharge occurs when precipitation is high, depletion occurs when evapotranspiration and runoff are higher. Click anywhere on the map to see how a chosen variable has changed over time, and click anywhere on the graph to switch the map to that month of interest. The water balance panel (on the left) shows how much recharge or depletion occurred during your chosen month, and how this compares to what’s normal. The trend analyzer panel (on the right) shows how your chosen variable was different in the same month during other years. Because the model is run with 0.25 degree spatial resolution (~30 km), these data should only be used for regional analysis. A specific farm or other small area might experience very different conditions than the region around it, especially because human influences like irrigation are not included.1Licence not specifiedover 1 year ago
- Ocean Health - ArcGIS Living Atlas - Indicators of the PlanetThe Ocean Health Index (OHI) is a comprehensive framework for evaluating the health of the world’s oceans. Using the best available data, methods, and analytical tools, OHI assessments synthesize data into concrete scores organized around 10 goals for the sustainable use of healthy oceans: Food Provision, Artisanal Fishing, Natural products, Carbon Storage, Coastal Protection, Tourism & Recreation, Livelihoods & Economies, Sense of Place, Clean Waters, and Biodiversity. Updating each year, the latest OHI information is available from NCEAS in Esri’s Living Atlas.1Licence not specifiedover 1 year ago
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