Surface & Ground Water

Groundwater and surface water are basically one resource, physically connected by the hydrologic cycle. Under natural conditions, rainfall percolates into the ground and recharges the groundwater system, and then water flows very slowly through the groundwater system, eventually discharging to streams. Changes in groundwater supplies are mainly influenced by climate and human consumption.

In the arid Southwest, groundwater plays a critical role in sustaining the flow of streams and rivers and maintaining riparian and wetland habitats. Groundwater also provides drinking water to urban and rural communities and supports agriculture and industry. Rapid population growth over the last century has led to increasing groundwater withdrawals that are outpacing the rate at which groundwater is naturally replenished.

Showing results 1-10 of 10

    • Locations: Amistad National Recreation Area, Big Bend National Park, Carlsbad Caverns National Park, Fort Davis National Historic Site, Guadalupe Mountains National Park,
    Smith Springs is one of many springs that serve as a water source for plants & animals in the CHDN.

    The Chihuahuan Desert Network is currently developing protocols to monitor several vital signs that may reflect current and future impacts of climate change. This brief offers a summary of how Chihuahuan Desert Network monitoring will detect future change.

  • Variations in precipitation could have major impacts on groundwater recharge.

    The National Park Service's Sonoran Desert Network Inventory and Monitoring Program is monitoring several vital signs that will likely show the effects of climate change. This article offers a summary of the network’s local-scale findings to date, as well as some examples of how monitoring will detect future change.

    • Locations: Amistad National Recreation Area
    • Offices: Chihuahuan Desert Inventory & Monitoring Network, Inventory and Monitoring Division
    A blue lake viewed from between prickly shrubs on a rocky embankment.

    Climate and water dramatically shape ecosystems, especially in arid and semi-arid places like Amistad National Recreation Area (NRA) in Texas. The reservoir at the park receives drainage from water basins in the U.S. and Mexico, including the Pecos and Devils rivers and the Rio Grande. The park supports a wide variety of plants and animals because it is in a transition zone between major life and climate zones. We monitor climate and water to assess park ecosystems.

    • Locations: Casa Grande Ruins National Monument
    • Offices: Sonoran Desert Inventory & Monitoring Network
    The blue and orange sunset behind the silhouette of unique ruins.

    Sonoran Desert Network scientists take measurements of key resources at Casa Grande Ruins to understand how natural resources in the park may be changing over time. This report summarizes analyses of weather and groundwater data from water year 2022. The data indicate the park is in mild drought though groundwater levels remain stable. Temperatures were warmer than average. Ten months had below average rainfall, but two months experiencing extreme precipitation.

    • Locations: Chiricahua National Monument
    • Offices: Sonoran Desert Inventory & Monitoring Network
    A vista of hoodoos, tall rocky structures, jutting out up from the ground amongst green foliage.

    This report summarizes the Sonoran Desert Network’s analyses of weather, groundwater, and springs data from Water Year 2022 in Chiricahua National Monument. Monitoring these important natural resources at the park helps us understand changes over time. The data indicate the park had a heavy monsoon season and is not in drought, though most months had far below average precipitation. The groundwater was higher than in WY2021, though surface water springs show signs of drying.

    • Locations: Coronado National Memorial
    • Offices: Inventory and Monitoring Division, Natural Resource Stewardship and Science Directorate, Sonoran Desert Inventory & Monitoring Network
    View from desert hilltop of another hill with dried grass, mountains in distance.

    At Coronado National Memorial, desert plants, wildlife, and visitors all depend on reliable water sources. The Sonoran Desert Network monitors climate, groundwater, and springs at the memorial. Understanding changes in these closely linked factors helps managers make informed decisions affecting natural resources. Learn about our recent findings.

    • Locations: Montezuma Castle National Monument
    • Offices: Inventory and Monitoring Division, Natural Resource Stewardship and Science Directorate, Sonoran Desert Inventory & Monitoring Network
    A curved rock wall encloses a large water body.

    At Montezuma Castle National Monument, the precontact built environment reflects the importance of reliable water sources. At this parks, the Sonoran Desert Network monitors climate, groundwater, and springs. Understanding changes in these closely linked factors helps managers make informed decisions affecting both natural and cultural resources. Learn about our findings for water year 2022.

    • Locations: Tumacácori National Historical Park
    • Offices: Sonoran Desert Inventory & Monitoring Network
    Tumacácori mission church as seen from above, set in trees with mountains in the background.

    Sonoran Desert Network scientists monitor key resources and weather at Tumacácori National Historical Park by taking measurements throughout the year, which helps us notice changes over time. This report summarizes weather, groundwater, and springs data from Water Year 2022. The data indicate the park's groundwater is rising slightly. WY2022 was warm and wet overall, though most precipitation was due to three extreme months of rainfall making up for otherwise dry conditions.

    • Locations: Wupatki National Monument
    The pumpshack before it was removed at Wupatki Spring.

    Wupatki, Heiser, and Peshlaki springs were historically the sole sources of perennial water where Wupatki National Monument now stands. As Wupatki Spring was developed, flow declined and eventually ceased in 1959. In the early 2000s, the National Park Service decided to remove remaining water diversion structures and attempt to establish a small area of riparian vegetation to enhance wildlife habitat in the area. Restoration began in 2007.

    • Locations: Sand Creek Massacre National Historic Site
    Wetland in Sand Creek Massacre NHS

    In 2004, the National Park Service Water Resources Division evaluated soil, wetland, and riparian habitat conditions in Sand Creek Massacre National Historic Site. A team of hydrologists and wetland scientists conducted a preliminary assessment of the site’s hydrologic and geomorphic conditions (surface features). The soils, hydrology, and wildlife habitat of the site were determined to be extremely sensitive to human traffic and other alterations.

Last updated: October 11, 2017

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