use output from one loop as in put for a second loop

I want to use the time series output from one loop (As) as time series input for a second loop. How does one do this? I've attached the code below.

Thank you.

%Degree-day method for snow melting. %Data from the Kassjöån basin in VCB, Switzerland

x=load('C:\Users\wesser\Desktop\Jan Matlab\SnowmodelTobin.dat'); %Load the file with data of precipitation, temperature and snowpack td=x(:,4); %hour of the day GlobalRad=x(:,5); %Global Radiation T=x(:,6); %Air Temperature P=x(:,7); %Precipitation Snow_obs=x(:,8); %SWE Observed SnowDepth=x(:,9); %Snow Depth Observed ts=x(:,10); %start time of daylight on day d (t0) te=x(:,11); %end time of daylight on day d (t1) dTd=x(:,12); %difference between the max and min daily temperatures on day d

snow_sim(1)=0; runoff=zeros(length(P));

%Parameters Scf=1.3; %Snowfall correction factor TT=1; %Threshold temperature C=3.5; %Degree-day factor (mm day-1 C-1)(Ac) Cfr=0.05; %Refreezing coefficient (use default value of 0.05) Cwh=0.1; %Water holding capacity (use default value of 0.1) B=0.05; % Factor to convert the temp amplitude into a degree day factor

snow_sim(1)=0; %Simulated snowpack is 0 mm for day 1 snow_sim_water(1)=0; %Liquid water in snowpack for day 1 the water is 0 mm

for t=1 : length(td); %time series loop

    ln(t)=24-te(t)+ts(t);                    %length of the night
    Z(t)=2*((te(t)-ts(t))/(3.14*ln(t)));        %factor ensuring that daily mean vaules of As equals Ac

    if ts(t)<=td(t)<te(t);

      As(t)=C+(B*dTd(t)*(sin(3.14*((td(t)-ts(t))/(te(t)-ts(t))))));       %equation for time variant degree day factor secnario1

    else As(t)=C-(B*dTd(t)*Z(t));            %equation for time variant degree day factor senario 2

    end
end

%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%

for t=2 : length(P); %time series loop if T(t)< TT; %If the temperature for day t is lower than the threshold value for melting (=below TT degrees) then refreezing of melt water will occur refreez(t)=Cfr*As*(TT-T(t)); %Equation for refreezing of meltwater if refreez(t) > snow_sim_water(t-1); %If the refreezing for day t is larger than the water in the snowpack the day before, then the refreezing is limited refreez(t)= snow_sim_water(t-1); %Can't freez more water than is accumulated in the snowpack end

        snow_sim(t)=P(t)*Scf+snow_sim(t-1)+refreez(t);     %The total simulated snowpack for any given day is the precipitation that day together with snow pack from day before and refreeze of that day.
        snow_sim_water(t)=snow_sim_water(t-1)-refreez(t);        %The total simulated amount of water in the snowpack is the water in the snowpack the day before minus the water refrozen the same day

    else %T(t) > TT                   %temperature above threshold temperature, snowmelt will occur
        Melt(t)=As*(T(t)-TT);           %Equations for melting rate of existing snowpack
        if Melt(t) > snow_sim(t-1);    %If the melting rate for day t is larger than the snowpack the day before, then the melting is limited
            Melt(t)= snow_sim(t-1);     %Because it can't melt more snow than is available
        end
        snow_sim(t)=snow_sim(t-1)-Melt(t);                  %Total simulated snow is the simulated snowpack for the day before minus the melted snow
        snow_sim_water(t)=snow_sim_water(t-1)+P(t)+Melt(t);       %Total water amount in snow is the water amount in snow for the day before plus the precipitation and the melted snow
        if Cwh*snow_sim(t) < snow_sim_water(t);                 %The snowpack can retain as much as 10% of its water equivalent, but not more
            runoff(t)=snow_sim_water(t)-0.1*snow_sim(t);        %if there is more liquid water, this goes to runoff (note:if there is no snowpack all water will go to runoff
            snow_sim_water(t)=0.1*snow_sim(t);
        end
    end
end

snow_sim_total=snow_sim+snow_sim_water; %The total simulated snowpack is the water in snow and the simulated snowpack

daynr=1:length(P);