 [source required] Legates and his coworkers became concerned with the quality of surface instrumental temperature data analysis, treatment and presentation of trends used in the communication of global warming research results.He co-developed methods to correct biases in gauge-measured precipitation data for wind and temperature effects, with direct applicability in climate change, hydrology and environmental impact studies.His group observed that gauge undercatch was mostly caused by wind turbulence—especially for snow—and has a significant effect on the calculated Arctic water budget.