KDFWR SWAP 2023 Aquatic Catchments

Vector NHDPlusV2 catchments. Attributes include Pour_FL_T_days, which show total mean annual instream travel time of water, in days, from each catchment to its pourpoint downstream under fully natural conditions (i.e. without dams); Pour_T_days show travel time to pour point under existing conditions with residence time at dams included; and Pour_Pct_Nat, which shows deviation from natural flow time (dammed flow time/natural flow time). Also includes cumulative scores of stratified habitat priorities downstream, weighted by proximity and relative contribution of flow, both for all SGCN species as well as broken down by taxa (K1ADS1pSD_t3da25,K1ADS1pSD_Amp_t3da25 for Amphibians, K1ADS1pSD_Biv_t3da25 for Bivalves, etc). As with flowline attributes, ‘AK6’ at the beginning of the attribute column name indicates the results stratified by HUC6 (AK6_pSD_t3da25, AK6_pSD_Amp_t3da25, etc). Data Download: https://app.fw.ky.gov/kfwis/SWAP_2023/SWAP23_AquaticCatchments.zip矢量型NHDPlusV2集水区。其属性包含：Pour_FL_T_days，该属性表征完全自然状态下（即无大坝拦截），各集水区水体经河道向下游至其出水点（pourpoint）的年均总河道行水时长（单位：天）；Pour_T_days表征现有水利条件下（计入大坝滞留时长）水体至下游出水点的行水时长；Pour_Pct_Nat则表征自然水流时长的偏差值，计算式为（受坝拦截水流时长/自然水流时长）。该数据集还包含按河道邻近度与水流相对贡献度加权的分层下游栖息地优先级累计得分，涵盖所有优先保护物种（Species of Greatest Conservation Need, SGCN）的整体得分结果，同时也按生物类群细分（如两栖类对应K1ADS1pSD_Amp_t3da25、双壳类对应K1ADS1pSD_Biv_t3da25等）。与河道线路属性规则一致，属性列名开头的“AK6”表示该结果按HUC6水文单元进行分层统计（如AK6_pSD_t3da25、AK6_pSD_Amp_t3da25等）。数据下载地址：https://app.fw.ky.gov/kfwis/SWAP_2023/SWAP23_AquaticCatchments.zip