NASA Reveals Texas Drought Eradicates Irrigated Farmland

NASA’s Earth Observatory published satellite images on October 8, 2026, showing how drought has erased irrigated farm circles across Texas. The stark contrast captured by the Landsat 8 satellite reveals a deterioration of agricultural output in the region’s cotton-producing counties over a single twelve-month period.

Satellite Images Expose Shrinking Irrigation Circles

Two distinct images of the same Texas county, taken at the same season a year apart, measure a retreat in green farmland. The distinctive green crop circles created by irrigation now appear only as incomplete arcs across many fields. Conservationist Tillery Timmons-Sims, based in Brownfield, describes a reality where farmers no longer water full fields. These rationed plots take the shape of half-circles or quarter-circles from orbit.

The Operational Land Imager aboard Landsat 8 captured the progression between September 22, 2025, and September 9, 2026. Within that timeframe, green plots transformed into a brown mosaic while temporary lakes dried up. Farmers had abandoned 72 percent of their non-irrigated cotton in 2022, and 66 percent in 2011.

Decades of Depletion in the High Plains Aquifer

Non-irrigated cotton relies strictly on rainfall, whereas pivot systems draw directly from the underlying High Plains Aquifer. Agricultural producers have pumped volumes of water from this underground source since roughly 1950. Beneath a large portion of Lubbock County, the water table dropped between 7.6 and 30 meters. Further north in Parmer, Castro, Swisher, and Briscoe counties, the decline reaches or exceeds 45 meters.

Several irrigation wells pumped air instead of water during the summer. Lacy Cotter-Vardeman, a Lubbock County cotton grower whose family has worked these lands for several generations, watched her wells stop in August. Roughly 90 percent of her non-irrigated cotton died, an outcome her insurers characterize as unprecedented.

Filled Basins Hinder Aquifer Recharge During Rainfall Deficits

Recharge of the aquifer occurs in part through playas, which are clay-lined temporary ponds that retain rain. Tillage and sediment have filled or modified nearly 80 percent of these basins, which no longer play this role. Most of these depressions were dry in September 2026, unlike the previous year.

Rains in September and October, pushed by a strong El Niño, fell short of filling the basins. Jonathan Case, a meteorologist at the Marshall Space Flight Center and co-author of the national drought monitoring bulletin, calculates that approximately 18 centimeters of rain over a three-month period would be required to exit the drought. NASA teams surveyed these farming operations in August. Growers there request usable data to decide what to sow and when to irrigate. Concurrently, a team at Texas Tech University monitored playas over thirty years, documenting a marked decline in 15 of the 45 counties studied since 1995.