Table 2 Description of the NG-IDF 2.0 datasets for evergreen forest.

From: Next-Generation Intensity-Duration-Frequency Curves for Diverse Land across the Continental United States

Main Folder

Naming Convention

Data File Description*

/24-h_time_series/

daily time series from 1950/1/1 to 2013/12/30

data_[lat]_[lon] e.g., data_25.15625_−80.71875

Data Dimension: 23,375 (R) × 4 (C). C1: W; C2: P; C3: TF; C4: SWE, all in mm.

/AM_time_series_[Year]/e.g., /AM_time_series_CY/

AM series with durations of 24 h, 48 h, and 72 h driven by different mechanisms from CY 1950–2013, including melt, rain, ROS, TF, and W. AM SWE series is also included.

[duration]_AM_time_series/[mechanism]/data_[lat]_[lon] e.g., 24-h_AM_time_series/W/data_25.15625_−80.71875

Data Dimension: 64 (R) × 4 (C) C1: Year; C2: Month; C3: Day; C4: AM value in mm.

/d_AM_time_series_[Year]/e.g., /d_AM_time_series_CY/

Detrended AM series with durations of 24 h, 48 h, and 72 h driven by different mechanisms from CY 1951-2013.

[duration]_AM_time_series/[mechanism]/data_[lat]_[lon] e.g., 24-h_AM_time_series/W/data_25.15625_−80.71875

Data Dimension: 63 (R) × 4 (C) C1: Year; C2: Month; C3: Day; C4: AM value in mm.

/IDF_curves_[Year]/e.g., /IDF_curves_CY/

IDF values and their 90% confidence intervals with durations of 24 h, 48 h, and 72 h driven by different mechanisms from 1951-2013, including melt, rain, ROS, TF, and W. Dominant mechanism and mean W and SWE dates from seasonality analysis are also included.

[duration]_[mechanism] e.g., 24-h_W

Data Dimension: 207,173 (R) × 9 (C) C1: Latitude; C2: Longitude; C3-C9: IDF values with ARIs of 2, 5, 10, 25, 50, 100, and 500 years, in mm.

/IDF_curves_[Year]_detrend/e.g., /IDF_curves_CY_detrend/

IDF values and their 90% confidence intervals using detrended AM data with durations of 24 h, 48 h, and 72 h driven by different mechanisms from 1951-2013.

[duration]_[mechanism] e.g., 24-h_W

Data Dimension: 207,173 (R) × 9 (C) C1: Latitude; C2: Longitude; C3-C9: IDF values with ARIs of 2, 5, 10, 25, 50, 100, and 500 years, in mm.

/trend_results_[year] e.g., /trend_results_CY/

Sen’s slope of Mann-Kendall trend in AM series with different mechanisms in 1951-2013.

[duration]_[mechanism] e.g., 24-h_W

Data Dimension: 207,173 (R) × 3 (C) C1: Latitude; C2: Longitude; C3: Sen’s slope in mm/yr.

  1. *Note: In “Data Description”, C = column, R = Row. C[i] indicates the ith column of a data file.